Update README.md

README.md

@@ -7,6 +7,9 @@ Can be used in two modes:
 - **as a LoRa APRS client**, you need to use APRSDroid application (https://aprsdroid.org), connect to the modem using bluetooth, data will be re-transmitted through the LoRa radio, this is similar to APRSDroid micromodem - https://unsigned.io/micromodem/, received data will be sent back to the APRSDroid using bluetooth. By having two clients you can not only send your position, but also send and receive APRS messages.
 - **as a LoRa APRS iGate server**, which connects to your WiFI and forwards received LoRa APRS positions into the APRS-IS network, it also reports client signal level, by appending it into the APRS comment, so you can see your signal reports in different locations
 
+# Compatible Boards
+All work was done on ESP32-WROOM with custom made LoRa shield, if your ESP32 board is compatible then it should work, but there might be need to redefine pinouts to LoRa module if it differs (see further description in Software Setup section)
+
 # Software Dependencies (install via libraries)
 - Arduino ESP32 library: https://github.com/espressif/arduino-esp32
 - LoRa arduino library: https://github.com/sandeepmistry/arduino-LoRa