mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
57 lines
2.4 KiB
Markdown
57 lines
2.4 KiB
Markdown
| Supported Targets | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
|
|
| ----------------- | -------- | -------- | -------- | -------- | -------- | -------- |
|
|
|
|
# Temperature Sensor Example
|
|
|
|
The ESP32-S2/C3/S3/C2 has a built-in temperature sensor. The temperature sensor module contains an 8-bit Sigma-Delta ADC and a temperature offset DAC.
|
|
|
|
The conversion relationship is the first two columns of the table below. Among them, `offset = 0`(default) is the main measurement option, and other values are extended measurement options.
|
|
|
|
| DAC level | offset | measure range(℃) | measure error(℃) |
|
|
| :-------: | :----: | :--------------: | :--------------: |
|
|
| 0 | -2 | 50 ~ 125 | < 3 |
|
|
| 1 | -1 | 20 ~ 100 | < 2 |
|
|
| 2 | 0 | -10 ~ 80 | < 1 |
|
|
| 3 | 1 | -30 ~ 50 | < 2 |
|
|
| 4 | 2 | -40 ~ 20 | < 3 |
|
|
|
|
## How to use example
|
|
|
|
Before project configuration and build, be sure to set the correct chip target using `idf.py set-target <chip_name>`.
|
|
|
|
### Hardware Required
|
|
|
|
* A development board with ESP32-S2/C3/S3/C2 SoC (e.g., ESP32-S2-Saola-1, ESP32-S2-DevKitM-1, ESP32-C3-DevKitM-1, ESP32-S3-WROOM-1, etc.)
|
|
* A USB cable for power supply and programming
|
|
|
|
### Build and Flash
|
|
|
|
Build the project and flash it to the board, then run monitor tool to view serial output:
|
|
|
|
Run `idf.py -p PORT flash monitor` to build, flash and monitor the project.
|
|
|
|
(To exit the serial monitor, type ``Ctrl-]``.)
|
|
|
|
See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
|
|
|
|
## Example Output
|
|
|
|
```
|
|
I (0) cpu_start: Starting scheduler on APP CPU.
|
|
I (303) example: Install temperature sensor, expected temp ranger range: 10~50 ℃
|
|
I (303) temperature_sensor: Range [-10°C ~ 80°C], error < 1°C
|
|
I (313) example: Enable temperature sensor
|
|
I (323) example: Read temperature
|
|
I (323) example: Temperature value 26.06 ℃
|
|
I (1323) example: Temperature value 26.06 ℃
|
|
I (2323) example: Temperature value 26.06 ℃
|
|
I (3323) example: Temperature value 26.06 ℃
|
|
I (4323) example: Temperature value 26.06 ℃
|
|
I (5323) example: Temperature value 26.49 ℃
|
|
|
|
```
|
|
|
|
## Troubleshooting
|
|
|
|
For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.
|