I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

IR Sensor Operation: The IR sensor emits infrared light from an LED and detects the reflected light with a photodiode. When an object comes within the sensor's range, the amount of reflected light ...

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 Smart Coaster Informs You When Your Drink Is Ready December 4 ...

Excelity Timing Control Trigger Timer Delay Switch Module , ... DWEII 7PCS IR Infrared Slotted Optical Optocoupler Module Speed Measuring Sensor to 5V Photo Interrupter Sensor for Arduino.

This paper presents an implementation of smart, and inexpensive human body temperature detector by using portable electric system based on Arduino UNO, and MLX 90614 IR temperature sensor. The ...