Here is the diagram of my Arduino infrared close proximity sensor. As you can see, ... The series resistor R1 sets the operating current (and hence the brightness level) of IRED1. The infrared ...

Google is doing an experiment at their Developers conference this week. The Google Cloud Platform Developer Relations team posted on their blog today, a ...

That’s right, these parking sensors are powered by an Arduino board, and the only extra components that were used in the project are a HC SR04 ultrasonic sensor, an active buzzer, and jumper wires.