Merge pull request #240 from caternuson/iss239

Update for RP2040

.github/workflows/githubci.yml

@@ -5,7 +5,7 @@ on: [pull_request, push, repository_dispatch]
 jobs:
   build:
     runs-on: ubuntu-latest
-    
+
     steps:
     - uses: actions/setup-python@v1
       with:
@@ -20,10 +20,10 @@ jobs:
       run: bash ci/actions_install.sh
 
     - name: test platforms
-      run: python3 ci/build_platform.py main_platforms
+      run: python3 ci/build_platform.py main_platforms rp2040_platforms
 
     - name: clang
-      run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r . 
+      run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r .
 
     - name: doxygen
       env:

Adafruit_SSD1306.cpp

@@ -38,7 +38,7 @@
 
 #ifdef __AVR__
 #include <avr/pgmspace.h>
-#elif defined(ESP8266) || defined(ESP32)
+#elif defined(ESP8266) || defined(ESP32) || defined(ARDUINO_ARCH_RP2040)
 #include <pgmspace.h>
 #else
 #define pgm_read_byte(addr)                                                    \