octoprint_enclosure/__init__.py

@@ -186,6 +186,9 @@ class EnclosurePlugin(octoprint.plugin.StartupPlugin,
                         hum = 0
                     elif temp_reader['sensorType'] == "si7021":
                         temp, hum = self.readSI7021Temp(temp_reader['sensorAddress'])
+                    elif temp_reader['sensorType'] == "tmp102":
+                        temp = self.readTmp102Temp(temp_reader['sensorAddress'])
+                        hum = 0
                     else:
                         self._logger.info("sensorType no match")
                         temp = 0
@@ -296,6 +299,24 @@ class EnclosurePlugin(octoprint.plugin.StartupPlugin,
         f.close()
         return lines
 
+    def readTmp102Temp(self, address):
+        try:
+            script = os.path.dirname(os.path.realpath(__file__)) + "/tmp102.py"
+            args = ["python", script, str(address)]
+            if self._settings.get(["debug"]) == True and not self.disable_temeprature_log:
+                self._logger.info("Temperature TMP102 cmd: %s", " ".join(args))
+            proc = Popen(args, stdout=PIPE)
+            stdout, _ = proc.communicate()
+            if self._settings.get(["debug"]) == True and not self.disable_temeprature_log:
+                self._logger.info("TMP102 result: %s", stdout)
+            return self.toFloat(stdout.strip())
+        except Exception as ex:
+            template = "An exception of type {0} occurred on readTmp102Temp. Arguments:\n{1!r}"
+            message = template.format(type(ex).__name__, ex.args)
+            self._logger.warn(message)
+            return 0
+
+
     def handleTemperatureControl(self):
         for control in self.temperature_control:
             if control['isEnabled'] == True:
@@ -342,7 +363,8 @@ class EnclosurePlugin(octoprint.plugin.StartupPlugin,
     def clearGPIO(self):
         try:
             for control in self.temperature_control:
-                GPIO.cleanup(self.toInt(control['gpioPin']))
+                if control['isEnabled']:
+                    GPIO.cleanup(self.toInt(control['gpioPin']))
             for rpi_output in self.rpi_outputs:
                 if self.toInt(rpi_output['gpioPin']) not in self.previous_rpi_outputs:
                     GPIO.cleanup(self.toInt(rpi_output['gpioPin']))
@@ -370,7 +392,8 @@ class EnclosurePlugin(octoprint.plugin.StartupPlugin,
     def configureGPIO(self):
         try:
             for control in self.temperature_control:
-                 GPIO.setup(self.toInt(control['gpioPin']), GPIO.OUT, initial=GPIO.HIGH if control['activeLow'] else GPIO.LOW)
+                if control['isEnabled']:
+                    GPIO.setup(self.toInt(control['gpioPin']), GPIO.OUT, initial=GPIO.HIGH if control['activeLow'] else GPIO.LOW)
             for rpi_output in self.rpi_outputs:
                 pin = self.toInt(rpi_output['gpioPin'])
                 if rpi_output['outputType'] == 'regular':

octoprint_enclosure/templates/enclosure_settings.jinja2

@@ -19,6 +19,7 @@
             <option value="18b20">DS18B20</option>
             <option value="si7021">SI7021</option>
             <option value="bme280">BME280</option>
+            <option value="tmp102">TMP102</option>
           </select>
           <span class="help-inline"> <span class="label label-important">Attention</span> You need to install and configure the necessary
           libraries for the temeprature sensor, check the documentation on <a href=" https://github.com/vitormhenrique/OctoPrint-Enclosure">github</a> page</span>
@@ -33,7 +34,7 @@
         </div>
       </div>
       <!-- /ko -->
-      <!-- ko if: ($data.sensorType() == "si7021") || ($data.sensorType() == "bme280") -->
+      <!-- ko if: ($data.sensorType() == "si7021") || ($data.sensorType() == "bme280") || ($data.sensorType() == "tmp102") -->
       <div class="control-group">
         <label class="control-label" for="settings-enclosure-dhtPin">{{ _('Sensor Pin') }}</label>
         <div class="controls">
@@ -49,7 +50,7 @@
         </div>
       </div>
       <!-- /ko -->
-      <!-- ko ifnot: ($data.sensorType() == "18b20") || ($data.sensorType() == "si7021") || ($data.sensorType() == "bme280") -->
+      <!-- ko ifnot: ($data.sensorType() == "18b20") || ($data.sensorType() == "si7021") || ($data.sensorType() == "bme280") || ($data.sensorType() == "tmp102") -->
       <div class="control-group">
         <label class="control-label" for="settings-enclosure-dhtPin">{{ _('Sensor Pin') }}</label>
         <div class="controls">

octoprint_enclosure/tmp102.py

@@ -0,0 +1,48 @@
+import ctypes
+import struct
+import sys
+
+import smbus
+
+
+def main():
+    # Get bus address if provided or use default address
+    address = 0x48
+    if len(sys.argv) >= 2:
+        address = int(sys.argv[1], 0)
+
+    if not 0x48 <= address <= 0x4b:
+        raise ValueError("Invalid address value")
+
+    # Connect to I2C bus (use 0 on original Raspberry Pi, 1 on later models)
+    bus = smbus.SMBus(1)
+
+    # Set pointer to the temperature register
+    bus.write_byte(address, 0)
+
+    # Read two byte value
+    temp = bus.read_word_data(address, 0)
+
+    # Disconnect from bus
+    bus.close()
+
+    # Byte swap
+    temp = struct.unpack(">H", struct.pack("<H", temp))[0]
+
+    # Shift
+    temp = temp >> 4
+
+    # Convert to 2 byte twos compliment negative if negative
+    if ((temp & 0x800) != 0):
+        temp |= 0xF800
+
+    # Convert into a signed number
+    temp = ctypes.c_short(temp).value
+
+    # Divide by 16 to get value in celsius
+    temp /= 16.0
+
+    print temp
+
+if __name__ == "__main__":
+    main()