علي طرف واحد keypad تريكات أردوينو - توصيل

Many people encounter problems connecting a keypad in their projects because it requires eight Arduino digital pins. In this episode, we'll discuss how to reduce this number to just one analog pin, and we'll apply this to several examples. ---------------------------------- Analog Reading Code https://goo.gl/c4Y5Aw --------------------------------- Application Code https://goo.gl/MwFwz4 -------------------------------- Password Lock Application Code https://goo.gl/sKgCye -------------------------------- Circuit Connection https://goo.gl/r23i4L --------------------------------