1. Set device in Flashing Mode by connect extender in reverse (long sides in same direction)
2. Plug device in USB socket
-2. Compile and flash firmware using micronucleus (you need to turn off and on device to enter Bootloader Mode)
+3. Compile and flash firmware using micronucleus (you need to turn off and on device to enter Bootloader Mode)
+
+and then
cd FIRMWARE
make