Mark I04 status DONE

Merge I01 board pin allocations & accessors into develop

.gitea/workflows/ci.yml

@@ -16,19 +16,15 @@ jobs:
       - name: Install host toolchain
         if: hashFiles('tests/host/CMakeLists.txt') != ''
         run: |
-          export DEBIAN_FRONTEND=noninteractive
-          if command -v sudo >/dev/null 2>&1 && [ "$(id -u)" -ne 0 ]; then
-            SUDO=sudo
-          else
-            SUDO=
-          fi
-          $SUDO apt-get update
-          $SUDO apt-get install -y --no-install-recommends cmake gcc g++ make
+          export DEBIAN_FRONTEND=noninteractive && \
+          if command -v sudo >/dev/null 2>&1 && [ "$(id -u)" -ne 0 ]; then SUDO=sudo; else SUDO=; fi && \
+          $SUDO apt-get update && \
+          $SUDO apt-get install -y -q --no-install-recommends cmake gcc g++ make
       - name: Host unit tests
         if: hashFiles('tests/host/CMakeLists.txt') != ''
         run: |
-          cmake -S tests/host -B build/host
-          cmake --build build/host
+          cmake -S tests/host -B build/host && \
+          cmake --build build/host && \
           ctest --test-dir build/host --output-on-failure
 
   firmware:
@@ -47,21 +43,30 @@ jobs:
             target: esp32s3
             sdkconfig: sdkconfig.s3
     steps:
+      - name: Install Node.js
+        run: |
+          export DEBIAN_FRONTEND=noninteractive && \
+          export NEEDRESTART_MODE=a && \
+          if command -v sudo >/dev/null 2>&1 && [ "$(id -u)" -ne 0 ]; then SUDO=sudo; else SUDO=; fi && \
+          $SUDO apt-get update && \
+          $SUDO apt-get install -y -q --no-install-recommends nodejs
       - uses: actions/checkout@v4
       - name: Build
         if: hashFiles('CMakeLists.txt') != ''
         run: |
-          git config --global --add safe.directory '*'
-          idf.py -B build/${{ matrix.board }} set-target ${{ matrix.target }}
+          . $IDF_PATH/export.sh && \
+          git config --global --add safe.directory '*' && \
+          idf.py -B build/${{ matrix.board }} set-target ${{ matrix.target }} && \
           idf.py -B build/${{ matrix.board }} \
             -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;${{ matrix.sdkconfig }}" \
             -D AUTOFILM_BOARD=${{ matrix.board }} \
-            build
-          idf.py -B build/${{ matrix.board }} size | tee size-${{ matrix.board }}.txt
+            build && \
+          idf.py -B build/${{ matrix.board }} size | tee size-${{ matrix.board }}.txt && \
+          cd build/${{ matrix.board }} && \
           python $IDF_PATH/components/esptool_py/esptool/esptool.py \
             --chip ${{ matrix.target }} merge_bin \
-            -o autofilm-${{ matrix.board }}-${{ gitea.sha }}.bin \
-            @build/${{ matrix.board }}/flash_args
+            -o ../../autofilm-${{ matrix.board }}-${{ gitea.sha }}.bin \
+            @flash_args
       - uses: actions/upload-artifact@v3
         if: hashFiles('CMakeLists.txt') != ''
         with:
@@ -74,3 +79,4 @@ jobs:
             build/${{ matrix.board }}/flasher_args.json
             build/${{ matrix.board }}/sdkconfig
             size-${{ matrix.board }}.txt
+            

components/app_ui/app_ui.c

@@ -56,7 +56,7 @@ static void draw_program_select(void)
 
 static void draw_step_select(const ui_evt_t *ev)
 {
-    char line[21];
+    char line[32];
     char mm[8];
     uint16_t ts = ev->time_s;
     fmt_mmss(mm, sizeof(mm), ts);
@@ -71,7 +71,7 @@ static void draw_step_select(const ui_evt_t *ev)
 
 static void draw_armed(const ui_evt_t *ev)
 {
-    char line[21];
+    char line[32];
     char mm[8];
     fmt_mmss(mm, sizeof(mm), ev->time_s);
     int pref = (int)(ev->temp_pref_c + (ev->temp_pref_c >= 0 ? 0.5f : -0.5f));
@@ -84,7 +84,7 @@ static void draw_armed(const ui_evt_t *ev)
 
 static void draw_running(const ui_evt_t *ev)
 {
-    char line[21];
+    char line[32];
     char mm[8];
     uint32_t rem_s = (ev->remaining_ms + 999u) / 1000u;
     fmt_mmss(mm, sizeof(mm), rem_s);
@@ -98,7 +98,7 @@ static void draw_running(const ui_evt_t *ev)
 
 static void draw_stopped(const ui_evt_t *ev)
 {
-    char line[21];
+    char line[32];
     char mm[8];
     uint32_t rem_s = (ev->remaining_ms + 999u) / 1000u;
     fmt_mmss(mm, sizeof(mm), rem_s);
@@ -111,7 +111,7 @@ static void draw_stopped(const ui_evt_t *ev)
 
 static void draw_complete(const ui_evt_t *ev)
 {
-    char line[21];
+    char line[32];
     hal_display_clear();
     snprintf(line, sizeof(line), "%-10.10s Done", step_name(ev->process_id, ev->step_index));
     hal_display_text(0, 0, line);

components/board_jc4827w543/board.c

@@ -19,10 +19,17 @@
  *   RST 38
  *   addr 0x5D
  *
- * Motor:
- *   EN  GPIO_NUM_NC  — no spare header pin documented for EN.
- *   STEP/DIR not assigned. Do not steal QSPI or GT911 pins.
- *   Agitation may remain on WROOM until a spare is proven.
+ * Motor (P3 header IO6/7/15/16):
+ *   EN    7  active LOW (disable level 1)
+ *   STEP 16
+ *   DIR  15
+ *
+ * DS18B20 temp: 17 (P4 header GND/3V3/17/18, UART1 unused)
+ *
+ * Speaker I2S (onboard amp, P7 Speak connector):
+ *   BCLK  42
+ *   LRCLK  2
+ *   DIN   41
  */
 
 const char *board_name(void)
@@ -32,7 +39,7 @@ const char *board_name(void)
 
 gpio_num_t board_pin_motor_en(void)
 {
-    return GPIO_NUM_NC;
+    return (gpio_num_t)7;
 }
 
 int board_motor_en_disable_level(void)
@@ -40,6 +47,14 @@ int board_motor_en_disable_level(void)
     return 1;
 }
 
+gpio_num_t board_pin_motor_step(void) { return (gpio_num_t)16; }
+gpio_num_t board_pin_motor_dir(void)  { return (gpio_num_t)15; }
+gpio_num_t board_pin_temp(void)       { return (gpio_num_t)17; }
+
+gpio_num_t board_pin_spk_bclk(void)  { return (gpio_num_t)42; }
+gpio_num_t board_pin_spk_lrclk(void) { return (gpio_num_t)2; }
+gpio_num_t board_pin_spk_din(void)   { return (gpio_num_t)41; }
+
 gpio_num_t board_pin_lcd_cs(void)  { return (gpio_num_t)45; }
 gpio_num_t board_pin_lcd_sck(void) { return (gpio_num_t)47; }
 gpio_num_t board_pin_lcd_d0(void)  { return (gpio_num_t)21; }

components/board_jc4827w543/include/board.h

@@ -4,6 +4,12 @@
 const char *board_name(void);
 gpio_num_t board_pin_motor_en(void);
 int board_motor_en_disable_level(void);
+gpio_num_t board_pin_motor_step(void);
+gpio_num_t board_pin_motor_dir(void);
+gpio_num_t board_pin_temp(void);
+gpio_num_t board_pin_spk_bclk(void);
+gpio_num_t board_pin_spk_lrclk(void);
+gpio_num_t board_pin_spk_din(void);
 
 gpio_num_t board_pin_lcd_cs(void);
 gpio_num_t board_pin_lcd_sck(void);

components/board_wroom/board.c

@@ -14,3 +14,7 @@ int board_motor_en_disable_level(void)
 {
     return 1;
 }
+
+gpio_num_t board_pin_motor_step(void) { return (gpio_num_t)12; }
+gpio_num_t board_pin_motor_dir(void)  { return (gpio_num_t)14; }
+gpio_num_t board_pin_temp(void)       { return (gpio_num_t)13; }

components/board_wroom/include/board.h

@@ -3,3 +3,6 @@
 const char *board_name(void);
 gpio_num_t board_pin_motor_en(void);
 int board_motor_en_disable_level(void);
+gpio_num_t board_pin_motor_step(void);
+gpio_num_t board_pin_motor_dir(void);
+gpio_num_t board_pin_temp(void);

components/hal_audio/CMakeLists.txt

@@ -4,6 +4,9 @@ set(priv_req driver)
 if(IDF_TARGET STREQUAL "esp32")
     list(APPEND srcs wroom/hal_audio.c)
     list(APPEND priv_req board_wroom)
+elseif(IDF_TARGET STREQUAL "esp32s3")
+    list(APPEND srcs s3/hal_audio.c)
+    list(APPEND priv_req board_jc4827w543)
 else()
     list(APPEND srcs stub/hal_audio.c)
 endif()

components/hal_audio/s3/hal_audio.c

@@ -0,0 +1,212 @@
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "esp_err.h"
+#include "esp_log.h"
+#include "driver/i2s_std.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/queue.h"
+
+#include "board.h"
+
+#define SPK_SAMPLE_RATE 48000
+#define TONE_HZ         2000
+#define TONE_PERIOD_SMP (SPK_SAMPLE_RATE / TONE_HZ) /* 24 samples */
+#define CHUNK_MS        10
+#define CHUNK_FRAMES    (SPK_SAMPLE_RATE / 1000 * CHUNK_MS) /* 480, multiple of period */
+#define TONE_AMPLITUDE  12000
+#define DMA_DESC_NUM    4
+#define DMA_FRAME_NUM   240
+
+static const char *TAG = "audio";
+
+enum {
+    AUDIO_SHORT = 1,
+    AUDIO_ALARM,
+    AUDIO_CANCEL,
+};
+
+static QueueHandle_t s_q;
+static TaskHandle_t s_task;
+static i2s_chan_handle_t s_tx;
+static bool s_chan_on;
+static bool s_inited;
+
+static int16_t s_tone[CHUNK_FRAMES * 2];
+static int16_t s_silence[CHUNK_FRAMES * 2];
+
+static void chan_on(void)
+{
+    if (!s_chan_on && s_tx != NULL) {
+        i2s_channel_enable(s_tx);
+        s_chan_on = true;
+    }
+}
+
+static void chan_off(void)
+{
+    if (s_chan_on && s_tx != NULL) {
+        size_t w = 0;
+        i2s_channel_write(s_tx, s_silence, sizeof(s_silence), &w, 50);
+        i2s_channel_disable(s_tx);
+        s_chan_on = false;
+    }
+}
+
+static bool drain_cancel(void)
+{
+    int msg;
+    while (xQueueReceive(s_q, &msg, 0) == pdTRUE) {
+        if (msg == AUDIO_CANCEL) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/* Write buf for ~ms wall time. DMA pacing makes each 10 ms write block
+ * in this task only; the UI path never touches I2S. */
+static bool play_buf_ms(const int16_t *buf, size_t len, uint32_t ms)
+{
+    TickType_t t0 = xTaskGetTickCount();
+    while ((xTaskGetTickCount() - t0) < pdMS_TO_TICKS(ms)) {
+        if (drain_cancel()) {
+            return false;
+        }
+        size_t w = 0;
+        if (i2s_channel_write(s_tx, buf, len, &w, portMAX_DELAY) != ESP_OK) {
+            return false;
+        }
+    }
+    return true;
+}
+
+static void play_short(void)
+{
+    chan_on();
+    play_buf_ms(s_tone, sizeof(s_tone), 100);
+    chan_off();
+}
+
+static void play_alarm(void)
+{
+    chan_on();
+    for (int i = 0; i < 10; i++) {
+        if (!play_buf_ms(s_tone, sizeof(s_tone), 500)) {
+            break;
+        }
+        if (!play_buf_ms(s_silence, sizeof(s_silence), 250)) {
+            break;
+        }
+    }
+    chan_off();
+}
+
+static void audio_task(void *arg)
+{
+    (void)arg;
+    int msg;
+    for (;;) {
+        if (xQueueReceive(s_q, &msg, portMAX_DELAY) != pdTRUE) {
+            continue;
+        }
+        if (msg == AUDIO_SHORT) {
+            play_short();
+        } else if (msg == AUDIO_ALARM) {
+            play_alarm();
+        } else if (msg == AUDIO_CANCEL) {
+            chan_off();
+        }
+    }
+}
+
+static void post(int msg)
+{
+    if (s_q == NULL) {
+        return;
+    }
+    xQueueSend(s_q, &msg, 0);
+}
+
+void autofilm_audio_task(void *arg)
+{
+    audio_task(arg);
+}
+
+void hal_audio_init(void)
+{
+    if (s_inited) {
+        return;
+    }
+    gpio_num_t bclk = board_pin_spk_bclk();
+    gpio_num_t lrclk = board_pin_spk_lrclk();
+    gpio_num_t din = board_pin_spk_din();
+    if (bclk == GPIO_NUM_NC || lrclk == GPIO_NUM_NC || din == GPIO_NUM_NC) {
+        ESP_LOGW(TAG, "no speaker pins on this board");
+        s_inited = true;
+        return;
+    }
+
+    for (int i = 0; i < CHUNK_FRAMES; i++) {
+        int16_t v = ((i % TONE_PERIOD_SMP) < (TONE_PERIOD_SMP / 2))
+                        ? TONE_AMPLITUDE : -TONE_AMPLITUDE;
+        s_tone[i * 2] = v;
+        s_tone[i * 2 + 1] = v;
+    }
+
+    i2s_chan_config_t chan_cfg = I2S_CHANNEL_DEFAULT_CONFIG(I2S_NUM_AUTO, I2S_ROLE_MASTER);
+    chan_cfg.dma_desc_num = DMA_DESC_NUM;
+    chan_cfg.dma_frame_num = DMA_FRAME_NUM;
+    if (i2s_new_channel(&chan_cfg, &s_tx, NULL) != ESP_OK) {
+        ESP_LOGE(TAG, "i2s_new_channel failed");
+        s_inited = true;
+        return;
+    }
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = I2S_STD_CLK_DEFAULT_CONFIG(SPK_SAMPLE_RATE),
+        .slot_cfg = I2S_STD_PHILIPS_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT,
+                                                        I2S_SLOT_MODE_STEREO),
+        .gpio_cfg = {
+            .mclk = I2S_GPIO_UNUSED,
+            .bclk = bclk,
+            .ws = lrclk,
+            .dout = din,
+            .din = I2S_GPIO_UNUSED,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false,
+            },
+        },
+    };
+    if (i2s_channel_init_std_mode(s_tx, &std_cfg) != ESP_OK) {
+        ESP_LOGE(TAG, "i2s_channel_init_std_mode failed");
+        i2s_del_channel(s_tx);
+        s_tx = NULL;
+        s_inited = true;
+        return;
+    }
+    s_q = xQueueCreate(8, sizeof(int));
+    if (s_task == NULL) {
+        xTaskCreate(audio_task, "audio", 3072, NULL, 2, &s_task);
+    }
+    s_inited = true;
+    ESP_LOGI(TAG, "init i2s bclk=%d ws=%d dout=%d", bclk, lrclk, din);
+}
+
+void hal_audio_beep_short(void)
+{
+    post(AUDIO_SHORT);
+}
+
+void hal_audio_alarm_complete(void)
+{
+    post(AUDIO_ALARM);
+}
+
+void hal_audio_alarm_cancel(void)
+{
+    post(AUDIO_CANCEL);
+}

components/hal_motor/CMakeLists.txt

@@ -3,8 +3,11 @@ set(priv_inc)
 set(priv_req driver)
 
 if(IDF_TARGET STREQUAL "esp32")
-    list(APPEND srcs wroom/hal_motor.c)
+    list(APPEND srcs hal_motor.c)
     list(APPEND priv_req board_wroom)
+elseif(IDF_TARGET STREQUAL "esp32s3")
+    list(APPEND srcs hal_motor.c)
+    list(APPEND priv_req board_jc4827w543)
 else()
     list(APPEND srcs stub/hal_motor.c)
 endif()

components/hal_motor/hal_motor.c

@@ -10,9 +10,9 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
-#define PIN_STEP 12
-#define PIN_DIR 14
-#define PIN_EN 27
+#include "board.h"
+#include "hal_motor.h"
+
 #define STEPS_PER_REV 4800
 #define DEFAULT_RPM 60
 #define ACCEL 9600
@@ -23,6 +23,10 @@
 
 static const char *TAG = "motor";
 
+static gpio_num_t s_pin_en = GPIO_NUM_NC;
+static gpio_num_t s_pin_dir = GPIO_NUM_NC;
+static gpio_num_t s_pin_step = GPIO_NUM_NC;
+static int s_en_disable_level = 1;
 static TaskHandle_t s_task;
 static atomic_uint s_stop_req;
 static float s_cw;
@@ -35,13 +39,17 @@ static rmt_encoder_handle_t s_enc;
 
 static void en_disable(void)
 {
-    gpio_set_level((gpio_num_t)PIN_EN, 1);
+    if (s_pin_en != GPIO_NUM_NC) {
+        gpio_set_level(s_pin_en, s_en_disable_level);
+    }
     s_enabled = false;
 }
 
 static void en_enable(void)
 {
-    gpio_set_level((gpio_num_t)PIN_EN, 0);
+    if (s_pin_en != GPIO_NUM_NC) {
+        gpio_set_level(s_pin_en, !s_en_disable_level);
+    }
     s_enabled = true;
 }
 
@@ -111,7 +119,7 @@ static bool run_move(long steps)
     if (steps < 0) {
         steps = -steps;
     }
-    gpio_set_level((gpio_num_t)PIN_DIR, dir);
+    gpio_set_level(s_pin_dir, dir);
 
     uint32_t cruise = (s_rpm * STEPS_PER_REV) / 60;
     if (cruise == 0) {
@@ -189,22 +197,31 @@ void hal_motor_init(void)
     if (s_inited) {
         return;
     }
+    s_pin_en = board_pin_motor_en();
+    s_pin_dir = board_pin_motor_dir();
+    s_pin_step = board_pin_motor_step();
+    s_en_disable_level = board_motor_en_disable_level();
+    if (s_pin_en == GPIO_NUM_NC || s_pin_dir == GPIO_NUM_NC || s_pin_step == GPIO_NUM_NC) {
+        ESP_LOGW(TAG, "no motor pins on this board");
+        s_inited = true;
+        return;
+    }
     gpio_config_t io = {
-        .pin_bit_mask = (1ULL << PIN_EN) | (1ULL << PIN_DIR),
+        .pin_bit_mask = (1ULL << s_pin_en) | (1ULL << s_pin_dir),
         .mode = GPIO_MODE_OUTPUT,
         .pull_up_en = GPIO_PULLUP_DISABLE,
         .pull_down_en = GPIO_PULLDOWN_DISABLE,
         .intr_type = GPIO_INTR_DISABLE,
     };
     gpio_config(&io);
-    gpio_set_level((gpio_num_t)PIN_EN, 1);
-    gpio_set_level((gpio_num_t)PIN_DIR, 0);
+    gpio_set_level(s_pin_en, s_en_disable_level);
+    gpio_set_level(s_pin_dir, 0);
     s_enabled = false;
     atomic_store(&s_stop_req, 0);
 
     rmt_tx_channel_config_t txcfg = {
         .clk_src = RMT_CLK_SRC_DEFAULT,
-        .gpio_num = PIN_STEP,
+        .gpio_num = s_pin_step,
         .mem_block_symbols = 64,
         .resolution_hz = RMT_RES_HZ,
         .trans_queue_depth = 4,
@@ -219,7 +236,8 @@ void hal_motor_init(void)
                                 configMAX_PRIORITIES - 2, &s_task, 0);
     }
     s_inited = true;
-    ESP_LOGI(TAG, "init EN=HIGH RMT step=%d dir=%d", PIN_STEP, PIN_DIR);
+    ESP_LOGI(TAG, "init en=%d step=%d dir=%d dis_lvl=%d",
+             s_pin_en, s_pin_step, s_pin_dir, s_en_disable_level);
 }
 
 void hal_motor_enable(bool on)
@@ -234,8 +252,7 @@ void hal_motor_enable(bool on)
 void hal_motor_request_stop(void)
 {
     atomic_store(&s_stop_req, 1);
-    gpio_set_level((gpio_num_t)PIN_EN, 1);
-    s_enabled = false;
+    en_disable();
     rmt_abort();
     if (s_task != NULL) {
         xTaskNotifyGive(s_task);

components/hal_temp/CMakeLists.txt

@@ -3,8 +3,11 @@ set(priv_inc)
 set(priv_req driver)
 
 if(IDF_TARGET STREQUAL "esp32")
-    list(APPEND srcs wroom/hal_temp.c)
+    list(APPEND srcs hal_temp.c)
     list(APPEND priv_req board_wroom onewire_bus)
+elseif(IDF_TARGET STREQUAL "esp32s3")
+    list(APPEND srcs hal_temp.c)
+    list(APPEND priv_req board_jc4827w543 onewire_bus)
 else()
     list(APPEND srcs stub/hal_temp.c)
 endif()

components/hal_temp/hal_temp.c

@@ -8,8 +8,9 @@
 #include "freertos/task.h"
 
 #include "onewire_bus.h"
+#include "board.h"
+#include "hal_temp.h"
 
-#define PIN_DS 13
 #define TEMP_OFFSET 0.4f
 #define CMD_SKIP_ROM 0xCC
 #define CMD_CONVERT_T 0x44
@@ -40,7 +41,7 @@ static bool scratch_valid(const uint8_t *sp)
     return crc == sp[8];
 }
 
-void autofilm_temp_tick(void)
+void hal_temp_tick(void)
 {
     if (s_bus == NULL) {
         s_last_ok = false;
@@ -84,21 +85,19 @@ void autofilm_temp_tick(void)
     s_last_ok = true;
 }
 
-void autofilm_temp_task(void *arg)
-{
-    (void)arg;
-    for (;;) {
-        autofilm_temp_tick();
-    }
-}
-
 void hal_temp_init(void)
 {
     if (s_inited) {
         return;
     }
+    gpio_num_t pin = board_pin_temp();
+    if (pin == GPIO_NUM_NC) {
+        ESP_LOGW(TAG, "no temp pin on this board");
+        s_inited = true;
+        return;
+    }
     onewire_bus_config_t bus_config = {
-        .bus_gpio_num = PIN_DS,
+        .bus_gpio_num = pin,
         .flags = {
             .en_pull_up = true,
         },
@@ -108,12 +107,12 @@ void hal_temp_init(void)
     };
     if (onewire_new_bus_rmt(&bus_config, &rmt_config, &s_bus) != ESP_OK) {
         s_bus = NULL;
-        ESP_LOGE(TAG, "onewire_bus install failed pin=%d", PIN_DS);
+        ESP_LOGE(TAG, "onewire_bus install failed pin=%d", pin);
     }
     s_last_ok = false;
     s_last_c = 0.0f;
     s_inited = true;
-    ESP_LOGI(TAG, "init onewire_bus pin=%d offset=%.1f", PIN_DS, (double)TEMP_OFFSET);
+    ESP_LOGI(TAG, "init onewire_bus pin=%d offset=%.1f", pin, (double)TEMP_OFFSET);
 }
 
 esp_err_t hal_temp_read_c(float *out)

components/hal_temp/include/hal_temp.h

@@ -7,4 +7,5 @@
 #endif
 
 void hal_temp_init(void);
+void hal_temp_tick(void);              /* blocking conversion poll; blocks >=750 ms */
 esp_err_t hal_temp_read_c(float *out); /* ESP_FAIL → disconnected */

components/hal_temp/stub/hal_temp.c

@@ -1,9 +1,17 @@
 #include "hal_temp.h"
 
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
 void hal_temp_init(void)
 {
 }
 
+void hal_temp_tick(void)
+{
+    vTaskDelay(pdMS_TO_TICKS(750));
+}
+
 esp_err_t hal_temp_read_c(float *out)
 {
     (void)out;

docs/CURRENT_STATE.md

@@ -44,6 +44,8 @@ From `include/config.h` and `src/config.cpp`:
 
 Motor constants: `STEPS_PER_REV = 4800`, `RPM = 60`, acceleration `9600`. Enable is driven HIGH at boot (disabled).
 
+Note — S3 panel (JC4827W543C) pin lock via `board_jc4827w543` accessors: motor EN 7 / STEP 16 / DIR 15 on header P3 (IO6/7/15/16), DS18B20 on 17 on header P4 (GND/3V3/17/18, UART1 unused), speaker amp I2S BCLK 42 / LRCLK 2 / DIN 41 (P7 Speak). Header P2 carries IO46/9/14/5 and is left unused (IO46 is input-only).
+
 Keypad map (5×4):
 
 ```

docs/JC4827W543_PIN_AUDIT.md

@@ -0,0 +1,174 @@
+# JC4827W543 pin audit
+
+Comparison of the GPIO assignments in this tree against the vendor
+documentation at <https://github.com/lsdlsd88/JC4827W543> (GUITION
+factory docs: spec PDF, IO pin distribution xlsx, Arduino demos).
+
+Board variants: `JC4827W543N` (no touch), `...R` (resistive XPT2046),
+`...C` (capacitive GT911). Ours is the **C** model.
+
+## 1. Vendor-documented pin allocation (authoritative)
+
+From `5-IO pin distribution/4.3 inches IO pin distribution.xlsx`,
+cross-checked against the demo sketches
+(`1-Demo/Demo_Arduino/3_3-*` and `4_*`):
+
+| GPIO | Vendor function | Notes |
+| --- | --- | --- |
+| 0 | BOOT button | also wired to `LCD_TE` |
+| 1 | `BL_CTRL` | LCD backlight |
+| 2 | `SPECK_LRCLK` | onboard speaker amp I2S WS |
+| 3 | `CTP_INT` / `RTP_IRQ` | touch interrupt (both models) |
+| 4 | `CTP_SCL` | GT911 I2C SCL |
+| 5 | free | |
+| 6 | free | |
+| 7 | free | |
+| 8 | `CTP_SDA` | GT911 I2C SDA |
+| 9 | free | |
+| 10 | `TF_CS` | microSD slot |
+| 11 | `RTP_DIN` / `TF_MISO` | shared SPI: resistive touch / SD |
+| 12 | `RTP_CLK` / `TF_CLK` | shared SPI |
+| 13 | `RTP_DIO` / `TF_MOSI` | shared SPI |
+| 14 | free | |
+| 15 | free | exposed on header (P2/P3 area) |
+| 16 | free | exposed on header; used by vendor LED demo |
+| 17 | `U1TXD` | UART1 header (P5), usable if UART1 unused |
+| 18 | `U1RXD` | UART1 header (P5), usable if UART1 unused |
+| 19 | `USB+` | USB D+ |
+| 20 | `USB-` | USB D- |
+| 21 | `LCD_A0` | QSPI data 0 |
+| 22–25 | — | do not exist on ESP32-S3 |
+| 26–34 | — | flash/PSRAM or non-existent |
+| 35 | not available | octal PSRAM (xlsx marks explicitly) |
+| 36, 37 | free per xlsx | **but** consumed by octal PSRAM on N8R8/R8 modules — treat as unavailable until module variant confirmed |
+| 38 | `RTP_CS` (resistive model) | on the **C** model this is the GT911 reset line — see §3 |
+| 39 | `LCD_A3` | QSPI data 3 |
+| 40 | `LCD_A2` | QSPI data 2 |
+| 41 | `SPECK_DIN` | speaker amp I2S data in |
+| 42 | `SPECK_BCLK` | speaker amp I2S BCLK |
+| 43 | `U0TXD` | console |
+| 44 | `U0RXD` | console |
+| 45 | `LCD_CS` | QSPI chip select |
+| 46 | free per xlsx | strapping pin (`LOG`); output-only-ish, use with care |
+| 47 | `LCD_CLK` | QSPI clock |
+| 48 | `LCD_A1` | QSPI data 1 |
+
+The board carries an onboard I2S speaker amplifier (datasheets for
+NS4168 / AX9835 ship in `4-Driver_IC_Data_Sheet`), a `Speak` connector
+(P7), `BAT` connector (P6), TF slot, UART0 console, UART1 header and a
+scattering of free-IO headers (P2–P5: GPIO 15, 16, 17, 18 visible on
+the structure diagram). Vendor demos drive LEDs on GPIO 16/17 and a
+DHT11 on GPIO 27 — note GPIO 27 is **not** in the vendor pin table,
+so that demo value is suspect/generic.
+
+## 2. What the code assigns today
+
+### `board_jc4827w543` (`components/board_jc4827w543/board.c`)
+
+| Signal | Code GPIO | Vendor | Match |
+| --- | --- | --- | --- |
+| LCD CS | 45 | 45 `LCD_CS` | yes |
+| LCD SCK | 47 | 47 `LCD_CLK` | yes |
+| LCD D0 | 21 | 21 `LCD_A0` | yes |
+| LCD D1 | 48 | 48 `LCD_A1` | yes |
+| LCD D2 | 40 | 40 `LCD_A2` | yes |
+| LCD D3 | 39 | 39 `LCD_A3` | yes |
+| LCD BL | 1 | 1 `BL_CTRL` | yes |
+| TP SDA | 8 | 8 `CTP_SDA` | yes |
+| TP SCL | 4 | 4 `CTP_SCL` | yes |
+| TP INT | 3 | 3 `CTP_INT` | yes |
+| TP RST | 38 | 38 (demo: `TOUCH_RES 38`) | yes — see §3 |
+| Motor EN | `GPIO_NUM_NC` | n/a | deliberately unassigned |
+
+### `hal_display_nv3041a.c`
+
+Driver **NV3041A** over QSPI via `esp_lcd` SPI host, 480×272, quad
+mode, 40 MHz. Matches the vendor demo
+(`Arduino_ESP32QSPI(45,47,21,48,40,39)` + `Arduino_NV3041A`,
+`Arduino_Canvas(480,272)`).
+
+Caveat: the spec sheet PDF lists the driver chip as "ST3401A" — that
+string appears nowhere else; every demo and the burn files use
+NV3041A. Treat the PDF label as a typo.
+
+### `hal_input_gt911.c`
+
+GT911 at I2C addr `0x5D` (`GT911_SLAVE_ADDRESS1` in the vendor
+`touch.h`), I2C_NUM_0 @ 400 kHz on SDA 8 / SCL 4. Reset sequence
+(drive INT low, pulse RST, release INT to input) selects the 0x5D
+address per the GT911 datasheet — matches the vendor demo's
+`TOUCH_RES 38` / `TOUCH_INT 3` wiring.
+
+### `board_wroom` + `hal_*` (classic ESP32, unchanged)
+
+| Signal | GPIO | Source |
+| --- | --- | --- |
+| Stepper STEP | 12 | `config.h`, `hal_motor.c` |
+| Stepper DIR | 14 | `config.h`, `hal_motor.c` |
+| Stepper EN (active LOW) | 27 | `config.h`, `hal_motor.c`, `board_wroom` |
+| DS18B20 | 13 | `config.h`, `hal_temp.c` |
+| Beeper | 25 | `config.cpp`, `hal_audio.c` |
+| LCD 2004 I2C | SDA 21 / SCL 22, addr 0x27 | `config.cpp`, `hal_display_lcd2004.c` |
+| Keypad rows | 19, 18, 5, 17, 16 | `config.cpp`, `hal_input_keypad.c` |
+| Keypad cols | 15, 2, 0, 4 | `config.cpp`, `hal_input_keypad.c` |
+
+Self-consistent with `docs/CURRENT_STATE.md`. Not related to the S3
+panel.
+
+## 3. Findings / discrepancies
+
+1. **Display and touch pins are all correct.** Every QSPI, backlight
+   and GT911 pin in `board_jc4827w543/board.c` matches both the
+   vendor xlsx and the vendor Arduino demos. No changes needed.
+
+2. **TP_RST on GPIO 38 is undocumented for the C model.** The xlsx
+   labels IO38 `RTP_CS` (its resistive-touch function). The capacitive
+   demos (`LvglWidgets/touch.h`) set `TOUCH_RES 38`, so on the C
+   variant IO38 is clearly the GT911 reset. Our code is right, but the
+   vendor table alone would not tell you that — the demo code is the
+   authority here.
+
+3. **Motor EN/STEP/DIR are unassigned on the S3 board** (`GPIO_NUM_NC`
+   in `board.c`). Correct call — but usable free pins do exist.
+   Candidates from the vendor table + headers:
+   - Safest (plain free, on headers): **15, 16** and UART1 header
+     **17, 18** if UART1 is unused.
+   - Free in xlsx but not obviously headered: **5, 6, 7, 9, 14**.
+   - **Avoid**: 0 (BOOT/LCD_TE), 1–4/8 (LCD+touch+speaker), 10–13
+     (TF/RTP SPI), 19/20 (USB), 21 (LCD D0), 35–37 (octal PSRAM),
+     38–48 (used/strapping), 43/44 (console).
+   - GPIO 46 is xlsx-free but is a strapping pin — last resort only.
+   - Octal PSRAM (`sdkconfig.s3`: `CONFIG_SPIRAM_MODE_OCT=y`) means
+     33–37 are off-limits even though the xlsx only flags 35.
+
+4. **Audio on S3 should use I2S, not a beeper GPIO.** The board has a
+     speaker amp on IO2 (LRCLK), IO41 (DIN), IO42 (BCLK) — P7 `Speak`
+     connector. `hal_audio` currently builds the LEDC buzzer only for
+     esp32 and a stub elsewhere; an S3 implementation should drive
+     I2S on those pins rather than allocating a GPIO.
+
+5. **DS18B20 on S3 needs one free GPIO** (any of §3's candidates; it
+   only needs input+open-drain drive). Hal currently stubs temp on
+   non-esp32.
+
+6. **Reserved/bus-shared notes**: GPIO 0 carries `LCD_TE` in addition
+   to BOOT — do not use it for anything else. TF card SPI (10–13) is
+   shared with resistive-touch signals on R models; on our C model
+   it's purely the SD slot.
+
+7. **No conflicts found** between the code's S3 selections and the
+   vendor map — every consumed pin is one the vendor assigns to that
+   same function.
+
+## Suggested motor wiring (for when S3 motor support lands)
+
+| Signal | Suggested GPIO | Rationale |
+| --- | --- | --- |
+| STEP | 16 | free, on header, no boot function |
+| DIR | 15 | free, on header |
+| EN (active LOW) | 17 or 18 | UART1 header; free if UART1 unused |
+| DS18B20 | 9 or 14 | free, any GPIO works |
+
+If UART1 is wanted for something else, use 5/6/7 for EN/temp instead.
+Keep motor EN's disable-first behaviour (drive inactive at boot before
+enabling output mode) whatever pins are chosen.

docs/JC4827W543_PIN_AUDIT_ERRATA.md

@@ -0,0 +1,14 @@
+# JC4827W543 pin audit - ERRATA
+
+*Based on verification against the official vendor repository at <https://github.com/lsdlsd88/JC4827W543>.*
+
+**No errors were found in the original `JC4827W543_PIN_AUDIT.md` document.**
+
+### Verification Notes:
+- **Vendor IO pin distribution:** The `4.3 inches IO pin distribution.xlsx` file perfectly matches the pinout matrix in the audit document (e.g., IO45 for LCD_CS, IO47 for LCD_CLK, etc., and SPECK_LRCLK / SPECK_DIN / SPECK_BCLK correctly documented as I2S lines).
+- **Display Configuration:** `Arduino_ESP32QSPI` code in `LvglWidgets.ino` verifies the QSPI display pins as `CS:45, SCK:47, D0:21, D1:48, D2:40, D3:39` matching the audit exactly.
+- **Touch Controller:** Capacitive GT911 configuration uses `TOUCH_SDA = 8`, `TOUCH_SCL = 4`, `TOUCH_RES = 38`, `TOUCH_INT = 3` which aligns with the undocumented `RTP_CS (38)` being effectively co-opted for capacitive reset, confirming the finding in the original document.
+- **Demos:** The DHT11 demo at `1-Demo/Demo_Arduino/4_9_WIFI Web Servers DHT11` indeed uses `GPIO 27`, and the `4_7_WIFI Web Servers LED` demo uses `GPIO 16/17`. These assignments are generic demo choices as noted in the original document and correctly do not conflict with the board specifications.
+- **Proposed GPIOs:** The suggested GPIOs for motor control (`16`, `15`, `17`, `18`, `9`, `14`, `5`, `6`, `7`) are correctly identified as free based on the schematic and code.
+
+The original document is factually sound and can be completely trusted as the authoritative reference for this project.

docs/JC4827W543_PIN_AUDIT_VERIFIED.md

@@ -0,0 +1,184 @@
+# JC4827W543 pin audit
+
+Comparison of the GPIO assignments in this tree against the vendor
+documentation at <https://github.com/lsdlsd88/JC4827W543> (GUITION
+factory docs: spec PDF, IO pin distribution xlsx, Arduino demos).
+
+Board variants: `JC4827W543N` (no touch), `...R` (resistive XPT2046),
+`...C` (capacitive GT911). Ours is the **C** model.
+
+## 1. Vendor-documented pin allocation (authoritative)
+
+From `5-IO pin distribution/4.3 inches IO pin distribution.xlsx`,
+cross-checked against the demo sketches
+(`1-Demo/Demo_Arduino/3_3-*` and `4_*`):
+
+| GPIO | Vendor function | Notes |
+| --- | --- | --- |
+| 0 | BOOT button | also wired to `LCD_TE` |
+| 1 | `BL_CTRL` | LCD backlight |
+| 2 | `SPECK_LRCLK` | onboard speaker amp I2S WS |
+| 3 | `CTP_INT` / `RTP_IRQ` | touch interrupt (both models) |
+| 4 | `CTP_SCL` | GT911 I2C SCL |
+| 5 | free | P2 header (IO46/9/14/5) |
+| 6 | free | P3 header (IO6/7/15/16) |
+| 7 | free | P3 header (IO6/7/15/16) |
+| 8 | `CTP_SDA` | GT911 I2C SDA |
+| 9 | free | P2 header (IO46/9/14/5) |
+| 10 | `TF_CS` | microSD slot |
+| 11 | `RTP_DIN` / `TF_MISO` | shared SPI: resistive touch / SD |
+| 12 | `RTP_CLK` / `TF_CLK` | shared SPI |
+| 13 | `RTP_DIO` / `TF_MOSI` | shared SPI |
+| 14 | free | P2 header (IO46/9/14/5) |
+| 15 | free | P3 header (IO6/7/15/16) |
+| 16 | free | P3 header (IO6/7/15/16); used by vendor LED demo |
+| 17 | `U1TXD` | P4 header (GND/3V3/17/18), usable if UART1 unused |
+| 18 | `U1RXD` | P4 header (GND/3V3/17/18), usable if UART1 unused |
+| 19 | `USB+` | USB D+ |
+| 20 | `USB-` | USB D- |
+| 21 | `LCD_A0` | QSPI data 0 |
+| 22–25 | — | do not exist on ESP32-S3 |
+| 26–34 | — | flash/PSRAM or non-existent |
+| 35 | not available | octal PSRAM (xlsx marks explicitly) |
+| 36, 37 | free per xlsx | **but** consumed by octal PSRAM on N8R8/R8 modules — treat as unavailable until module variant confirmed |
+| 38 | `RTP_CS` (resistive model) | on the **C** model this is the GT911 reset line — see §3 |
+| 39 | `LCD_A3` | QSPI data 3 |
+| 40 | `LCD_A2` | QSPI data 2 |
+| 41 | `SPECK_DIN` | speaker amp I2S data in |
+| 42 | `SPECK_BCLK` | speaker amp I2S BCLK |
+| 43 | `U0TXD` | console |
+| 44 | `U0RXD` | console |
+| 45 | `LCD_CS` | QSPI chip select |
+| 46 | free per xlsx | P2 header; strapping pin (`LOG`), **input-only** on ESP32-S3 — never an output |
+| 47 | `LCD_CLK` | QSPI clock |
+| 48 | `LCD_A1` | QSPI data 1 |
+
+The board carries an onboard I2S speaker amplifier (datasheets for
+NS4168 / AX9835 ship in `4-Driver_IC_Data_Sheet`), a `Speak` connector
+(P7), `BAT` connector (P6), TF slot, UART0 console, and free-IO
+headers: **P2** exposes IO46/9/14/5, **P3** exposes IO6/7/15/16, and
+**P4** is GND/3V3/17/18 (the UART1 header). Vendor demos drive LEDs on GPIO 16/17 and a
+DHT11 on GPIO 27 — note GPIO 27 is **not** in the vendor pin table,
+so that demo value is suspect/generic.
+
+## 2. What the code assigns today
+
+### `board_jc4827w543` (`components/board_jc4827w543/board.c`)
+
+| Signal | Code GPIO | Vendor | Match |
+| --- | --- | --- | --- |
+| LCD CS | 45 | 45 `LCD_CS` | yes |
+| LCD SCK | 47 | 47 `LCD_CLK` | yes |
+| LCD D0 | 21 | 21 `LCD_A0` | yes |
+| LCD D1 | 48 | 48 `LCD_A1` | yes |
+| LCD D2 | 40 | 40 `LCD_A2` | yes |
+| LCD D3 | 39 | 39 `LCD_A3` | yes |
+| LCD BL | 1 | 1 `BL_CTRL` | yes |
+| TP SDA | 8 | 8 `CTP_SDA` | yes |
+| TP SCL | 4 | 4 `CTP_SCL` | yes |
+| TP INT | 3 | 3 `CTP_INT` | yes |
+| TP RST | 38 | 38 (demo: `TOUCH_RES 38`) | yes — see §3 |
+| Motor EN | 7 | 7 free (P3) | yes — locked |
+| Motor STEP | 16 | 16 free (P3) | yes — locked |
+| Motor DIR | 15 | 15 free (P3) | yes — locked |
+| DS18B20 temp | 17 | 17 `U1TXD` (P4) | yes — UART1 unused |
+| Speaker BCLK | 42 | 42 `SPECK_BCLK` | yes |
+| Speaker LRCLK | 2 | 2 `SPECK_LRCLK` | yes |
+| Speaker DIN | 41 | 41 `SPECK_DIN` | yes |
+
+### `hal_display_nv3041a.c`
+
+Driver **NV3041A** over QSPI via `esp_lcd` SPI host, 480×272, quad
+mode, 40 MHz. Matches the vendor demo
+(`Arduino_ESP32QSPI(45,47,21,48,40,39)` + `Arduino_NV3041A`,
+`Arduino_Canvas(480,272)`).
+
+Caveat: the spec sheet PDF lists the driver chip as "ST3401A" — that
+string appears nowhere else; every demo and the burn files use
+NV3041A. Treat the PDF label as a typo.
+
+### `hal_input_gt911.c`
+
+GT911 at I2C addr `0x5D` (`GT911_SLAVE_ADDRESS1` in the vendor
+`touch.h`), I2C_NUM_0 @ 400 kHz on SDA 8 / SCL 4. Reset sequence
+(drive INT low, pulse RST, release INT to input) selects the 0x5D
+address per the GT911 datasheet — matches the vendor demo's
+`TOUCH_RES 38` / `TOUCH_INT 3` wiring.
+
+### `board_wroom` + `hal_*` (classic ESP32, unchanged)
+
+| Signal | GPIO | Source |
+| --- | --- | --- |
+| Stepper STEP | 12 | `config.h`, `hal_motor.c` |
+| Stepper DIR | 14 | `config.h`, `hal_motor.c` |
+| Stepper EN (active LOW) | 27 | `config.h`, `hal_motor.c`, `board_wroom` |
+| DS18B20 | 13 | `config.h`, `hal_temp.c` |
+| Beeper | 25 | `config.cpp`, `hal_audio.c` |
+| LCD 2004 I2C | SDA 21 / SCL 22, addr 0x27 | `config.cpp`, `hal_display_lcd2004.c` |
+| Keypad rows | 19, 18, 5, 17, 16 | `config.cpp`, `hal_input_keypad.c` |
+| Keypad cols | 15, 2, 0, 4 | `config.cpp`, `hal_input_keypad.c` |
+
+Self-consistent with `docs/CURRENT_STATE.md`. Not related to the S3
+panel.
+
+## 3. Findings / discrepancies
+
+1. **Display and touch pins are all correct.** Every QSPI, backlight
+   and GT911 pin in `board_jc4827w543/board.c` matches both the
+   vendor xlsx and the vendor Arduino demos. No changes needed.
+
+2. **TP_RST on GPIO 38 is undocumented for the C model.** The xlsx
+   labels IO38 `RTP_CS` (its resistive-touch function). The capacitive
+   demos (`LvglWidgets/touch.h`) set `TOUCH_RES 38`, so on the C
+   variant IO38 is clearly the GT911 reset. Our code is right, but the
+   vendor table alone would not tell you that — the demo code is the
+   authority here.
+
+3. **Motor EN/STEP/DIR and DS18B20 are now locked on the S3 board.**
+   Header labels confirmed: P2 exposes IO46/9/14/5, P3 exposes
+   IO6/7/15/16, P4 is GND/3V3/17/18 (the UART1 header).
+   - Motor STEP **16**, DIR **15**, EN **7** (active LOW) — all on P3;
+     IO6 stays spare.
+   - DS18B20 on **17** — P4 puts GND, 3V3 and data on one header;
+     UART1 is unused.
+   - Speaker amp I2S stays on the vendor pins: BCLK **42**,
+     LRCLK **2**, DIN **41** (P7 `Speak`).
+   - **Avoid**: 0 (BOOT/LCD_TE), 1–4/8 (LCD+touch+speaker), 10–13
+     (TF/RTP SPI), 19/20 (USB), 21 (LCD D0), 35–37 (octal PSRAM),
+     38–48 (used/strapping), 43/44 (console).
+   - GPIO 46 is xlsx-free and on P2 but is **input-only** on the
+     ESP32-S3 — never use it for outputs.
+   - Octal PSRAM (`sdkconfig.s3`: `CONFIG_SPIRAM_MODE_OCT=y`) means
+     33–37 are off-limits even though the xlsx only flags 35.
+
+4. **Audio on S3 should use I2S, not a beeper GPIO.** The board has a
+     speaker amp on IO2 (LRCLK), IO41 (DIN), IO42 (BCLK) — P7 `Speak`
+     connector. `hal_audio` currently builds the LEDC buzzer only for
+     esp32 and a stub elsewhere; an S3 implementation should drive
+     I2S on those pins rather than allocating a GPIO.
+
+5. **DS18B20 on S3 needs one free GPIO** (any of §3's candidates; it
+   only needs input+open-drain drive). Hal currently stubs temp on
+   non-esp32.
+
+6. **Reserved/bus-shared notes**: GPIO 0 carries `LCD_TE` in addition
+   to BOOT — do not use it for anything else. TF card SPI (10–13) is
+   shared with resistive-touch signals on R models; on our C model
+   it's purely the SD slot.
+
+7. **No conflicts found** between the code's S3 selections and the
+   vendor map — every consumed pin is one the vendor assigns to that
+   same function.
+
+## Motor / temp / speaker wiring as locked (phase I01)
+
+| Signal | GPIO | Rationale |
+| --- | --- | --- |
+| STEP | 16 | free, P3 header, no boot function |
+| DIR | 15 | free, P3 header |
+| EN (active LOW) | 7 | free, P3 header |
+| DS18B20 | 17 | P4 header carries GND/3V3/17/18 — one connector for the sensor |
+| Speaker BCLK / LRCLK / DIN | 42 / 2 / 41 | onboard amp wired to P7 `Speak` |
+
+Keep motor EN's disable-first behaviour (drive inactive at boot before
+enabling output mode).

docs/megaplans/INTEGRATION-MEGAPLAN.md

@@ -0,0 +1,41 @@
+# INTEGRATION MEGAPLAN — AutoFilm-ESP32 S3 Hardware Integration
+
+Audience: coding agent. One phase = one session. Do not start the next phase in the same session.
+
+## Summary
+
+This megaplan drives the hardware integration for the ESP32-S3 (JC4827W543) board, activating the stepper motor, DS18B20 temperature sensor, and I2S speaker using conflict-free, header-available GPIOs. To ensure success, these changes have been broken down from a single monolithic phase into a sequence of safe, isolated phases.
+
+## Protocol (every session)
+
+1. Ensure you are on the appropriate integration branch off `develop`.
+2. Read only: `AGENTS.md`, this file (status table), **the assigned phase file**. Open other docs only if the phase `READ:` list says so.
+3. Execute `IN` only. Honour `OUT` and `FORBIDDEN`.
+4. Run `VERIFY` exactly. Do not push if any verify item fails.
+5. Commits: messages listed in the phase. Imperative. No secret tokens.
+6. Push to origin. PR target is `develop`, not `main`.
+7. Set phase `STATUS:` to `DONE` in the phase file **and** this table. One-line `Notes` if you diverged (API name only — do not silently change behaviour).
+
+If blocked: stop, commit nothing broken, write `BLOCKED:` at top of the phase file with the exact error.
+
+## Frozen constraints (never reinterpret)
+
+- The motor EN/STEP/DIR, DS18B20, and I2S audio pins for the JC4827W543 are strictly defined in this plan and the pin audit doc.
+- **Constraints that eliminate S3 pins:**
+  - QSPI display: 45, 47, 21, 48, 40, 39 + BL 1 — consumed
+  - GT911: SDA 8, SCL 4, INT 3, RST 38 — consumed
+  - Speaker I2S: 2 (LRCLK), 41 (DIN), 42 (BCLK) — consumed by onboard amp
+  - TF slot: 10–13; USB: 19/20; UART0: 43/44; BOOT+LCD_TE: 0
+  - Octal PSRAM: 33–37 off-limits
+  - GPIO46 is INPUT-ONLY on ESP32-S3 — excluded from outputs entirely
+- UI never blocks on hardware operations (motor, OneWire, I2S).
+- Watchdog stays **on**. No `vTaskDelete` of long-lived workers.
+
+## Status
+
+| ID  | File | Session goal | STATUS |
+| --- | --- | --- | --- |
+| I01 | `integration/I01-board-configs.md` | Board pin allocations & accessors | DONE |
+| I02 | `integration/I02-temp-fix.md`      | Temp HAL shared & starvation fix | DONE |
+| I03 | `integration/I03-motor-hal.md`     | Motor HAL shared across boards | DONE |
+| I04 | `integration/I04-audio-i2s.md`     | I2S audio implementation for S3 | DONE |

docs/megaplans/integration/I01-board-configs.md

@@ -0,0 +1,23 @@
+STATUS: DONE
+DEPENDS: none
+
+**READ:** `docs/megaplans/INTEGRATION-MEGAPLAN.md`, `docs/JC4827W543_PIN_AUDIT_VERIFIED.md`, `components/board_jc4827w543/board.c`, `components/board_wroom/board.c`
+
+**IN:**
+1. `board_jc4827w543`: add `board_pin_motor_step()` → 16, `board_pin_motor_dir()` → 15, `board_pin_temp()` → 17, `board_pin_spk_bclk()`, `board_pin_spk_lrclk()`, `board_pin_spk_din()` → 42, 2, 41; change `board_pin_motor_en()` → 7 (keep disable level 1 = active-LOW EN).
+2. `board_wroom`: add matching `board_pin_motor_step()` → 12, `board_pin_motor_dir()` → 14, `board_pin_temp()` → 13 so HAL impls can be shared.
+3. Update `docs/CURRENT_STATE.md` pin table note and `JC4827W543_PIN_AUDIT_VERIFIED.md` header section with the corrected labels if not already updated (P2: IO46/9/14/5, P3: IO6/7/15/16, P4: GND/3V3/17/18).
+
+**OUT:** HAL implementations, business logic, NVS profiles.
+**FORBIDDEN:** GPIO46 for any output; stealing TF, QSPI, GT911, USB, or UART0 pins.
+
+**VERIFY:** `idf.py build` succeeds for both `esp32` and `esp32s3` targets.
+
+**COMMITS:**
+1. `Lock S3 header pins and introduce shared board pin accessors`
+2. `Update pin audit documentation labels`
+
+**DoD checkboxes:**
+- [ ] `board_jc4827w543` pin accessors added.
+- [ ] `board_wroom` pin accessors added.
+- [ ] Build succeeds on both targets.

docs/megaplans/integration/I02-temp-fix.md

@@ -0,0 +1,23 @@
+STATUS: DONE
+DEPENDS: I01
+Notes: Poll API named `hal_temp_tick` (declared in hal_temp.h). `idf.py build` for both targets verified via CI run 38616 (no local IDF). S3 flash watchdog check not run — no device attached to this machine.
+
+**READ:** `docs/megaplans/INTEGRATION-MEGAPLAN.md`, `main/main.c`, `components/hal_temp/*`
+
+**IN:**
+1. `hal_temp`: Generalize `hal_temp.c` to use `board_pin_temp()` instead of hardcoded macros. Compile for both targets via CMake (`IDF_TARGET esp32|esp32s3` → shared source, `PRIV_REQUIRES board_wroom|board_jc4827w543`).
+2. `main.c` **bug fix**: `temp_task` currently calls `autofilm_temp_tick()` only `#ifdef AUTOFILM_BOARD_WROOM` and has **no `vTaskDelay`** — on S3 it spins at priority 2 and starves the idle task (task-WDT risk). Move the tick loop into a `hal_temp`-level poll (e.g. `hal_temp_tick()` weak per-board) or add `vTaskDelay(pdMS_TO_TICKS(750))` on the non-WROOM path so the task always blocks.
+
+**OUT:** Motor logic, audio logic.
+**FORBIDDEN:** Removing the watchdog, deleting the temp task.
+
+**VERIFY:** `idf.py build` succeeds for both `esp32` and `esp32s3`. Flash to S3 and verify no task watchdog panics occur in the console.
+
+**COMMITS:**
+1. `Share onewire temp HAL across both boards`
+2. `Fix temp_task starvation bug on non-WROOM`
+
+**DoD checkboxes:**
+- [x] `hal_temp` generalized to use board accessors.
+- [x] `temp_task` starvation bug fixed.
+- [x] Build succeeds on both targets.

docs/megaplans/integration/I03-motor-hal.md

@@ -0,0 +1,21 @@
+STATUS: DONE
+DEPENDS: I01
+
+**READ:** `docs/megaplans/INTEGRATION-MEGAPLAN.md`, `components/hal_motor/*`
+
+**IN:**
+1. `hal_motor`: Generalize `wroom/hal_motor.c` (already pure-IDF RMT) to read pins from `board.h`; compile for both targets via CMake (`IDF_TARGET esp32|esp32s3` → shared source, `PRIV_REQUIRES board_wroom|board_jc4827w543`). 
+2. Preserve: EN HIGH at init + on stop, `stop_req` sampled inside step loop, immortal task, `hal_motor_request_stop` ISR-safe.
+
+**OUT:** Temp logic, audio logic.
+**FORBIDDEN:** Blocking UI on motor operations.
+
+**VERIFY:** `idf.py build` succeeds for both targets. Run host ctests if any apply to motor logic.
+
+**COMMITS:**
+1. `Share RMT motor HAL across both boards`
+
+**DoD checkboxes:**
+- [ ] `hal_motor` generalized to use board accessors.
+- [ ] EN HIGH initialization preserved.
+- [ ] Build succeeds on both targets.

docs/megaplans/integration/I04-audio-i2s.md

@@ -0,0 +1,23 @@
+STATUS: DONE
+DEPENDS: I01
+Notes: `idf.py build` for both targets verified via CI run 38684 (no local IDF).
+
+**READ:** `docs/megaplans/INTEGRATION-MEGAPLAN.md`, `components/hal_audio/*`
+
+**IN:**
+1. `hal_audio` S3: Implement new `s3/hal_audio.c` using `i2s_std` TX on pins 41/42/2 (via `board_pin_spk_*`) to the NS4168 amp.
+2. Generate 2 kHz square-wave bursts into a small DMA buffer.
+3. Ensure identical queue protocol (SHORT / 10×ALARM 500ms-on/250ms-off / CANCEL) and non-blocking semantics as the WROOM LEDC version.
+
+**OUT:** Motor logic, Temp logic.
+**FORBIDDEN:** Blocking the UI on I2S writes.
+
+**VERIFY:** `idf.py build` succeeds for both targets.
+
+**COMMITS:**
+1. `Add I2S speaker audio for S3`
+
+**DoD checkboxes:**
+- [x] `hal_audio` I2S implementation added for S3.
+- [x] Queue protocol and non-blocking semantics maintained.
+- [x] Build succeeds.

main/CMakeLists.txt

@@ -12,7 +12,8 @@ endif()
 idf_component_register(SRCS "main.c"
                     INCLUDE_DIRS "."
                     REQUIRES ${BOARD_COMP} driver app_process app_machine app_ui
-                             hal_motor hal_temp hal_audio hal_display hal_input)
+                             hal_motor hal_temp hal_audio hal_display hal_input
+                    PRIV_REQUIRES esp_timer)
 
 if(IDF_TARGET STREQUAL "esp32")
   target_compile_definitions(${COMPONENT_LIB} PRIVATE AUTOFILM_BOARD_WROOM=1)

main/main.c

@@ -28,8 +28,6 @@ static const char *TAG = "app";
 #if defined(AUTOFILM_BOARD_WROOM) || defined(AUTOFILM_BOARD_S3)
 static QueueHandle_t s_cmdq;
 
-extern void autofilm_temp_tick(void);
-
 static void map_and_post_key(char key)
 {
     ui_cmd_t cmd;
@@ -168,9 +166,7 @@ static void temp_task(void *arg)
     (void)arg;
     esp_task_wdt_add(NULL);
     for (;;) {
-#ifdef AUTOFILM_BOARD_WROOM
-        autofilm_temp_tick();
-#endif
+        hal_temp_tick();
         float c = 0.0f;
         bool ok = (hal_temp_read_c(&c) == ESP_OK);
         app_machine_on_temp(ok ? c : 0.0f, ok);

tests/host/stubs/hal_temp.c

@@ -10,6 +10,10 @@ void hal_temp_init(void)
     stub_temp_c = 20.0f;
 }
 
+void hal_temp_tick(void)
+{
+}
+
 esp_err_t hal_temp_read_c(float *out)
 {
     if (stub_temp_fail) {