1.43 Temperature Sensor Measurement Calibration
This example application shows how to use the ADC Peripheral library in blocking mode to convert the internal bandgap temperature to a temperature value using the two-point factory calibration.
Description
The example application uses Global Software trigger to start a conversion on the bandgap temperature sensor input and blocks until the conversion is complete. Once the ADC conversion is complete, the value is placed in a buffer. When the buffer is full, the average value is calculated and this value if processed with the two-point factory calibration to achieve a +/-5% nominal die temperature value in degrees C which is printed to the serial terminal.
Downloading and Building the Application
To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.
Path of the application within the repository is apps/temp_sense/firmware.
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| pic32cz_ca80_curiosity_ultra.X | MPLABX project for PIC32CZ CA80 Curiosity Ultra Board |
Setting Up the Hardware
The following table shows the target hardware for the application projects.
| Project Name | Board |
|---|---|
| pic32cz_ca80_curiosity_ultra.X | PIC32CZ CA80 Curiosity Ultra Board |
Setting Up PIC32CZ CA80 Curiosity Ultra Board
- Connect the Debug USB port on the board to the computer using a micro USB cable
Running the Application
- Build and Program the application using its IDE
- Connect to the PKOB4 Virtual COM port and configure the serial settings as
follows:
- Baud : 115200
- Data : 8 Bits
- Parity : None
- Stop : 1 Bit
- Flow Control : None
- The demo application will print the measured and compensated temperature value
to the serial terminal:
