Compile Arduino examples in CI

.github/workflows/ci.yml

@@ -13,3 +13,10 @@ jobs:
           cmake ..
           make
           ./nanomodbus_tests
+      - name: Compile Arduino examples
+        run: |
+          pushd build
+          curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | sh
+          popd
+          export PATH="build/bin:$PATH"
+          ./examples/arduino/compile-examples.sh

examples/arduino/README.md

@@ -4,3 +4,7 @@ This folder contains nanoMODBUS examples for Arduino.
 To build and load a sketch with the Arduino IDE, copy `nanomodbus.c` and `nanomodbus.h` inside its folder.
 
 `client-rtu` and `server-rtu` are meant to be used with two Arduinos connected via their TX0/RX0 serial pins.
+
+If you have [arduino-cli](https://github.com/arduino/arduino-cli) installed, you can run
+`examples/arduino/compile-examples.sh` from the top-level nanoMODBUS directory to compile the examples.
+They will be available in the `build` folder.

examples/arduino/compile-examples.sh

@@ -0,0 +1,24 @@
+#!/bin/env bash
+set -e -o pipefail
+
+# Set default board
+BOARD=$1
+if [ -z "${BOARD}" ]
+then
+    echo No board specified, using arduino:avr:uno
+    BOARD=arduino:avr:uno
+fi
+
+# Set up example folders
+mkdir -p build/arduino
+cp -r examples/arduino build
+cp nanomodbus.h nanomodbus.c build/arduino/server-rtu/
+cp nanomodbus.h nanomodbus.c build/arduino/client-rtu/
+
+# Ensure ardunio-cli is up to date
+arduino-cli core update-index
+arduino-cli core install arduino:avr
+
+# Compile both examples
+arduino-cli compile -b $BOARD --output-dir build/arduino -- build/arduino/server-rtu/server-rtu.ino
+arduino-cli compile -b $BOARD --output-dir build/arduino -- build/arduino/client-rtu/client-rtu.ino