IR Sensor Pinout. The IR sensor has a 3-pin connector that interfaces it to the outside world. The connections are as follows: VCC is the power supply pin for the IR sensor which we connect to the 5V ...

Tachometer is a RPM counter which counts the no. of rotations per minute.There are two types of tachometer - one is mechanical and the other one is digital. Here we are going to design an Arduino ...

Note: We can use a 12V, 1A adapter also, instead of a 12V, 2A adapter. MQ3 Sensor: MQ3 Sensor. This is the heart of the touchless doorbell. MQ3 sensor is a metal oxide semiconductor (mos) type of ...

After some searching, I ended up using a microcontroller and a piece of code borrowed from the web that I tweaked and adapted. The microcontroller-based concept was chosen because I wanted to scale ...

Proximity Sensor Switch – Circuit Diagram. The circuit diagram of the wireless load control unit is shown in Fig. 2. This design is based on Arduino Nano board and built around an I2C LCD (module1).

# Ultrasonic and Infrared Sensor with Arduino Uno ## Overview This project demonstrates how to use both an ultrasonic sensor and an infrared (IR) sensor with an Arduino Uno. The ultrasonic sensor is ...

The Arduino Uno board detects the tattoo artist’s gestures via a distance sensor, and signals the machine with an on or off output. Watch this video on YouTube . Source: AH : WTech ...