Change read_raw_i2c_temp to return temp and humidity #419

2021-05-05T02:04:44+01:00

qtemp commented

2021-05-05 02:04:44 +01:00

(Migrated from github.com)

Change read_raw_i2c_temp to read one or two float values from slave; one for temperature and the other for humidity.

Modified get_sensor_data to populate temp & hum based on the sensor type:

When the sensor type is "temp_raw_i2c" the resulting assignment is temp followed by hum.
When the sensor type is "hum_raw_i2c" the resulting assignment is hum followed by temp.

Added hum_raw_i2c and temp_raw_i2c to list of humdityCapableSensor's.

Arduino code for sending two float values:

    float data[2];
    data[0] = (float) t1; // Temp
    data[1] = (float) h1; // Humidity
    Wire.write((uint8_t*) data, sizeof(data));

Arduino code for sending a single float value:

    float data[1];
    data[0] = (float) t1; // Temp
    Wire.write((uint8_t*) data, sizeof(data));

or

union floatBytes
{
  uint8_t bytes[4];
  float value;
} floatContainer;

    floatContainer.value = t1;
    Wire.write(floatContainer.bytes, sizeof(float));

Change read_raw_i2c_temp to read one or two float values from slave; one for temperature and the other for humidity. Modified get_sensor_data to populate temp & hum based on the sensor type: - When the sensor type is "temp_raw_i2c" the resulting assignment is temp followed by hum. - When the sensor type is "hum_raw_i2c" the resulting assignment is hum followed by temp. Added hum_raw_i2c and temp_raw_i2c to list of humdityCapableSensor's. Arduino code for sending two float values: ``` float data[2]; data[0] = (float) t1; // Temp data[1] = (float) h1; // Humidity Wire.write((uint8_t*) data, sizeof(data)); ``` Arduino code for sending a single float value: ``` float data[1]; data[0] = (float) t1; // Temp Wire.write((uint8_t*) data, sizeof(data)); ``` or ``` union floatBytes { uint8_t bytes[4]; float value; } floatContainer; floatContainer.value = t1; Wire.write(floatContainer.bytes, sizeof(float)); ```

vitormhenrique commented

2021-10-13 18:37:16 +01:00

(Migrated from github.com)

We probably need to add this to the readme and wiki as well.

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Reference: Gandalf/OctoPrint-Enclosure#419