diff --git a/Arduino Code/README.md b/Arduino Code/README.md
new file mode 100644
index 00000000..e87c84a3
--- /dev/null
+++ b/Arduino Code/README.md	
@@ -0,0 +1,23 @@
+## Arduino Code
+
+FW and libraries for running on various HW
+
+### AmsToMqttBridge
+
+The original FW by roarfred, runs a Wifi access point until configured. Uploads data as json to a MQTT server.
+
+### WifiFeatherRestBridge
+
+_Note: This project is still under development._
+
+Firmware for runninw AMS decoding with off-the-shelf components, so no PCB etching or soldering necessary. Specifially,
+the sketch runs on the [Adafruit Feather M0 WiFi w/ATWINC1500](https://www.adafruit.com/product/3010) card and uses the
+[TSS721 M-BUS module board](https://www.aliexpress.com/item/TSS721/32751482255.html) available from Aliexpress.
+
+![FeatherMbus](/Debugging/Documentation/feather_3010-00_mbus_slave.jpg)
+
+
+### Arduino Libraries/HanReader
+
+The shared library to read from a serial port and decode the data into packets.
+
diff --git a/Debugging/Code/README.md b/Debugging/Code/README.md
index bd074b78..4a997d38 100644
--- a/Debugging/Code/README.md
+++ b/Debugging/Code/README.md
@@ -18,3 +18,9 @@ Very similar to the HanDebugger, simply reading the HAN data and outputting the
 This code outputs a changing serial test pattern.
 
 ![](SerialTestPattern/SerialTestPattern.gif)
+
+### SerialSimulator (Python code to send sample HAN data over serial port)
+
+Use this Python3 script (e.g. running on a desktop computer using a USB to serial dongle) to simulate the data sent over the HAN port (after being translate from Mbus to uart signals).
+
+![](SerialSimulator/ams_serial_simulator.jpg)
diff --git a/Debugging/Code/SerialSimulator/ams_serial_simulator.jpg b/Debugging/Code/SerialSimulator/ams_serial_simulator.jpg
new file mode 100644
index 00000000..45a86d68
Binary files /dev/null and b/Debugging/Code/SerialSimulator/ams_serial_simulator.jpg differ
diff --git a/Debugging/Documentation/feather_3010-00_mbus_slave.jpg b/Debugging/Documentation/feather_3010-00_mbus_slave.jpg
new file mode 100644
index 00000000..8ab64d92
Binary files /dev/null and b/Debugging/Documentation/feather_3010-00_mbus_slave.jpg differ