A compact analogue reflectance sensor such as the CNY70 was not used in the Arduino Uno experiments described. Instead, a homemade sensor was assembled using a single infrared LED (IR333C) and a ...

This project unveils a compact and efficient fire alarm system, thoughtfully crafted using the versatile Arduino Uno microcontroller 🤖 and an IR (Infrared) sensor 🌟. Designed with safety in mind 🛡️ ...

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 ...

IR Based Security Alarm; Burglar Alarm using PIR; GSM Based Security System; Today we are adding one more Security Alarm in our list which is based on Ultrasonic Sensor. This Arduino Controlled Door ...

Use Arduino Uno, IR sensor, and a display (LED) Convert time to distance using speed of sound ( 50 km/hr maximum speed limit ).And also write code to trigger sensor, calculate speed and display on the ...

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 ...

Our schematic consists on 3 elements which are: Photoresistor (LDR), Piezo Buzzer, 1 – 10 kΩ. The LDR can be connected any way you want because doesn’t have polarity. For resistance you can use from 1 ...

Old infrared remote controls can be a great way to interface with your projects. One of [AnalysIR’s] latest blog posts goes over the simplest way to create an Arduino based IR receiver, makin… ...

Arduino based Fire Alarm – Circuit and Working Fig. 2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano. The system is powered by a step-down transformer (X1), a ...