Arduino FAQs

1How to use millis() instead of delay()
2How to use button to start/stop the loop
3How to use button to start program
4Button does not work
5Why needs debounce for button
6How to debounce for multiple buttons
7How to use the multiple passwords for keypad
8How to input a multiple digits number using the keypad
9Serial Monitor shows weird characters
10LCD does not display characters
11Servo motor does not work
12How to add a header file on Arduino IDE
13How to convert string variable to integer in Arduino
14avrdude: ser_open(): can't open device