Æthernet ESP32 Temperature Sensor

Reference firmware for sending environmental sensor data from an ESP32 through Æthernet. The same codebase can be built as a desktop CMake project for development or as ESP-IDF firmware for supported ESP32 boards.

Æthernet C++ SDK · Documentation

• desktop CMake build;
• ESP-IDF;
• PlatformIO with ESP-IDF;
• ESP32-C6 DevKitC-1;
• ESP32-S3 DevKitM-1;
• ESP-WROVER-KIT.

The project uses Git submodules:

git clone --recurse-submodules https://github.com/aethernetio/temperature-sensor.git
cd temperature-sensor

For an existing clone:

git submodule update --init --recursive

cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --parallel

Make sure IDF_PATH is configured, then replace the board and Wi-Fi placeholders:

idf.py -C . -B build set-target esp32c6
idf.py -C . -B build build \
  -DWIFI_SSID="your-ssid" \
  -DWIFI_PASSWORD="your-password"
idf.py -C . -B build flash monitor

Do not commit real Wi-Fi credentials.

Choose one of the environments defined in platformio.ini:

pio run -e esp32-c6-devkitc-1 -t upload
pio device monitor

Before building, replace the placeholder Wi-Fi values in a local configuration. Avoid committing the modified credentials.

• integrating the Æthernet C++ client into ESP-IDF;
• configuring filtered release builds for embedded targets;
• collecting sensor data and delivering it through the Æthernet network;
• sharing a codebase between desktop development and ESP32 firmware.

Include the board, ESP-IDF or PlatformIO version, sensor model, build command, and serial log when opening an issue.

Apache License 2.0. See LICENSE.