CHIP ESP32 Pigweed Example Application#

Please setup ESP-IDF and CHIP Environment and refer building and commissioning guides to get started.

Introduction#

The ESP32 example demonstrates the usage of Pigweed module functionalities in an application.

The example is based on CHIP, the Pigweed module, which is a collection of libraries that provide different functionalities for embedded systems, and the ESP32 platform.

You can use this example as a training ground for making experiments, testing Pigweed module features and checking what actions are necessary to fully integrate Pigweed in a CHIP project.

Pigweed functionalities are being gradually integrated into CHIP. Currently, the following features are available:

  • Echo RPC - Creates a Remote Procedure Call server and allows sending commands through the serial port to the device, which makes echo and sends the received commands back.

Testing the Example Application#

Run the following command to start an interactive Python shell, where the Echo RPC commands can be invoked:

python -m pw_hdlc.rpc_console --device /dev/tty.SLAB_USBtoUART -b 115200 $CHIP_ROOT/third_party/pigweed/repo/pw_rpc/pw_rpc_protos/echo.proto -o /tmp/pw_rpc.out

To send an Echo RPC message, type the following command, where the actual message is the text in quotation marks after the msg= phrase:

rpcs.pw.rpc.EchoService.Echo(msg="hi")