NTE30116 Tinted Blue 5mm Infrared LED Emitter (940nm) SM0038 Photo Module for PCM Remote Control System (38kHz) The principle of this setup is somewhat simple and self-explanatory. In this circuit, ...

When an object comes within the sensor's range, the amount of reflected light changes, causing the sensor’s output to switch state. Arduino Processing: The Arduino reads the output from the IR sensor.

Features: Hardware components: Arduino, relay module, jumper wires, and external power source Code: Arduino code for controlling the relay based on sensor input or a manual switch Applications: Home ...

Posted in Arduino Hacks, Lifehacks Tagged 9V battery, arduino, arduino nano, IR temperature sensor, leds, lever switch, limit switch ...

HiLetgo NE555 DC 12V Delay Timer Switch Adjustable Module to 10 Second DWEII 7PCS IR Infrared Slotted Optical Optocoupler Module Speed Measuring Sensor to 5V Photo Interrupter Sensor for Arduino ...