Add Doc for RFLINK

README.md

@@ -38,3 +38,14 @@ https://github.com/maxbeutel/libevent-webserver
 http://www.nashweb.de/articles/05-Simple-Webserver-with-libevent-in-C++.html
 https://doxygen.bitcoincore.org/httpserver_8cpp_source.html
 https://github.com/atp798/EvHttp
+
+
+# RFLink
+
+## Flash the firmware
+``
+/home/jbnadal/usr/arduino-1.8.12/hardware/tools/avr/bin/avrdude -C/home/jbnadal/usr/arduino-1.8.12/hardware/tools/avr/etc/avrdude.conf -v -patmega2560 -cwiring -P/dev/ttyUSB1 -b115200 -D -Uflash:w:/home/jbnadal/sources/RFLink.cpp.hex:i
+``
+# Access
+
+ picocom /dev/ttyUSB1 -b 57600 --omap crlf --echo