скетч отсюда
wifi-iot.com/p/wiki/158/ru/
ни в какую не хочет компилироваться.
dimmer:49: error: 'class USI_TWI_S' has no member named 'onRequest'
TinyWireS.onRequest(requestEvent);
^
C:\Users\Ihor\Desktop\dimmer\dimmer.ino: In function 'void loop()':
dimmer:113: error: 'TinyWireS_stop_check' was not declared in this scope
TinyWireS_stop_check();
^
exit status 1
'class USI_TWI_S' has no member named 'onRequest'