Ultrasonic sensor Arduino code with LED. Arduino Ultrasonic Sensor-LED. We are going to learn how to: If the object is close to ultrasonic sensor, turn LED on; If the object is far from ultrasonic ...

This Arduino code is designed to read data from five gas sensors connected to an Arduino board. The sensors include MQ8, MQ4, MQ9, MQ7, and MQ135. The code reads analog data from these sensors and ...

DIY Tachometer using Arduino and IR Sensor. Demonstrates how to build a digital tachometer using an Arduino and an IR sensor module. It measures the rotations per minute (RPM) of a rotating object by ...

Arduino DHT22 Code for Interfacing the Sensor Module. Now let’s look at the code for interfacing the DHT22 sensor. For that first install the Adafruit’s DHT sensor library and Adafruit Unified Sensor ...

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 ...

Arduino Motion Sensor – Circuit and Working The circuit diagram of the automation device using a motion sensor is shown in Fig. 2. It consists of an Arduino Nano board (MOD1), a PIR sensor (S1), a ...

As I've experimented and played with a lot of different sensors, I've discovered that these basic devices can be built for super cheap, and they're incredibly versatile. When you're done using an ...

An advanced blind assistance device integrates an ultrasonic sensor, Arduino UNO board, buzzer, and GSM module to create a cost-effective solution for enhancing the safety and autonomy of visually ...