Want to use the arduino UNO do a temperature control fan, using LM35, LCD1206 display, and think through the button to add the temperature control fan, want to ask keys and fan should be how to connect, the middle and don't add other things,

CodePudding user response:

Button took on the gpio, other also nothing special

CodePudding user response:

Keys can be set on the pull directly on the IO, fans are generally use motor driver then use UNO IO output PWM to control,

CodePudding user response:

Button in the arduino UNO digital input pin, fan is normal is driven need hardware, if only control on-off can receive digital ouput, if received the PWM speed regulation