Video

Description - Pull-Up Resistors

Pull-up resistors fix input pins, pushbuttons, and switches. They keep the pin of your Arduino, LaunchPad, or BeagleBone at a known value. There is one catch when you use them, so make sure you checkout the full video.

Episode Notes

Connection Note

When you enable the internal pull-up resistor, you want to connect one side of your button to the pin and the other side to ground. If you use an external pull-up resistor, use something between 10k and 100k.

Suggested links:

• Written Pull-Up Resistor tutorial [via baldengineer]
• Code used in Episode [via pastebin]

Suggested Products:

• Arduino Uno [via makershed]
• LaunchPad [via energia]
• Fluke Multimeter
• Rigol Oscilloscope
• Breadboard-able Tactile Pushbuttons [via adafruit]
• Two pushbuttons on one pcb [via tindie]

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