Messing around with Arduino can lead to some fun projects ... t work right and also might short out and create a fire risk. Resistor values are measured in Ohms, which indicates electrical ...

How the resistor color-code bands work At the heart of the project is an Arduino Nano clone and a potential divider that measures the resistance of the test resistor against a known fixed value.

This is a hotel room door swinging open. The device he holds in his hand is an Arduino connected to the OUTSIDE portion of the door lock. It takes approximately 200 milliseconds from the time an ...