What is an appropriate pull down resistor size. Input pull up serial this example demonstrates the use of pinmodeinputpullup. Don T Leave Your Pins Floating Bench Talk Pull Up Pull Down Resistors Ppt Download Ask Need Help About Interference On Internal Pull Up For I also have a 5v signal coming into an analog pin that im using as a digital pin. Arduino pull down resistor size . This seems to work fine. Addohms 15 video tutorial covers pull up resistors including the arduino internal pull up resistor. I have an obnoxious tri state output that i am reading with an adc. Seems crazy but its not. It reads a digital input on pin 2 and prints the results to the serial monitor. With a pull up resistor and with the button unpressed you make a logic state on and with the button pressed yo. In the video i am using a ti launchpad with ener...
