Digital thermometer based on Arduino with 4 digit 7 segment display
1 x Arduino (in my case it was Arduino Mega 2560 rev2) 1 x PCF8574 expander 1 x 4 digit […]
1 x Arduino (in my case it was Arduino Mega 2560 rev2) 1 x PCF8574 expander 1 x 4 digit […]