Examples

A complete ESP32-C6 application that reads an MCP9700 through the on-chip ADC with the driver.

It runs on an ESP32-C6 DevKit with the sensor's VOUT on GPIO0 (ADC_UNIT_1, ADC_CHANNEL_0); the pin, the attenuation and the adapter are at the top of mcp9700_esp32c6_example.cpp. CI builds every app below on each pull request.

The apps

App	What it shows	Source	CI
mcp9700_esp32c6_example	MCP9700 on ESP32-C6 ADC1 CH0 (GPIO0), oneshot + optional calibration	mcp9700_esp32c6_example.cpp	yes

Build and flash one (from examples/esp32, ESP-IDF environment loaded):

./scripts/build_app.sh mcp9700_esp32c6_example Release
./scripts/flash_app.sh flash_monitor mcp9700_esp32c6_example Release

Source of this table: examples/esp32/app_config.yml.

Set up once

git submodule update --init examples/esp32/scripts   # the HardFOC ESP-IDF build scripts
cd examples/esp32
. $IDF_PATH/export.sh                                 # ESP-IDF v5.5
./scripts/build_app.sh list                           # every app and build type

The scripts read app_config.yml (the same file this page's table comes from) and build each app as its own firmware image.

What to read in an example

You want to	Read
Write an ESP-IDF adc_oneshot adapter with calibration	Esp32Mcp9700Adc in mcp9700_esp32c6_example.cpp
See the read loop and its error handling	app_main() in the same file
Change the pin or attenuation	AdcLayout in the same file

The app logs the temperature every 500 ms; when a read fails out of range it logs the raw VOUT from ReadVoltage() instead. Without curve-fitting calibration it scales the raw code linearly to 3.3 V, which is less accurate. The example folder's README has the wiring and the idf.py commands.