diff --git a/.github/workflows/compile_esp8266.yml b/.github/workflows/compile_esp8266.yml
new file mode 100644
index 00000000..28148035
--- /dev/null
+++ b/.github/workflows/compile_esp8266.yml
@@ -0,0 +1,29 @@
+name: PlatformIO ESP82266
+
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Cache pip
+      uses: actions/cache@v3
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    - name: Cache PlatformIO
+      uses: actions/cache@v3
+      with:
+        path: ~/.platformio
+        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+    - name: Set up Python
+      uses: actions/setup-python@v3
+    - name: Install PlatformIO
+      run: |
+        python -m pip install --upgrade pip
+        pip install --upgrade platformio
+    - name: Run PlatformIO
+      run: pio run -e d1_mini
diff --git a/tools/esp8266/README.md b/tools/esp8266/README.md
index 4d02eec1..a6446dc7 100644
--- a/tools/esp8266/README.md
+++ b/tools/esp8266/README.md
@@ -8,7 +8,7 @@ These pins can be changed from the /setup URL
 
 ## Compile
 
-This code can be compiled using Arduino. The settings were:
+This code can be compiled using Visual Studio Code and **PlatformIO** Addon. The settings were:
 
 - Board: Generic ESP8266 Module
 - Flash-Size: 1MB (FS: none, OTA: 502kB)
@@ -21,9 +21,8 @@ This code can be compiled using Arduino. The settings were:
 ### Optional Configuration before compilation
 
 - number of supported inverters (set to 3 by default) `defines.h`
-- enable channel hopping `hmRadio.h`
 - DTU radio id `hmRadio.h`
-- unformated list in webbrowser `/livedata` `defines.h`, `LIVEDATA_VISUALIZED`
+- unformated list in webbrowser `/livedata` `config.h`, `LIVEDATA_VISUALIZED`
 
 
 ## Flash ESP with firmware
@@ -52,10 +51,13 @@ The serial console will print the converted values which were read out of the in
 
 For now the following inverters should work out of the box:
 
+- HM350
 - HM400
 - HM600
+- HM700
 - HM800
 - HM1200
+- HM1500
 
 ## USED LIBRARIES
 
@@ -66,4 +68,4 @@ For now the following inverters should work out of the box:
 - `Time` 1.6.1
 - `RF24` 1.4.2
 - `PubSubClient` 2.8
-- `ArduinoJson` 6.19.4
\ No newline at end of file
+- `ArduinoJson` 6.19.4