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![ultrasonic distance meter](https://circuitdiagrams.in/wp-content/uploads/2020/05/WhatsApp-Image-2020-07-13-at-9.41.26-PM.jpeg)
Electro Gadget
Ultrasonic Distance Meter Using Arduino
![How to make a Simple Fire Alarm Circuit](https://circuitdiagrams.in/wp-content/uploads/2020/05/Untitled-1-e1608376213230.jpg)
Electro Gadget
Simple Fire Alarm Circuit Using Thermistor And LM358
![Arduino Digital Tachometer](https://circuitdiagrams.in/wp-content/uploads/2020/07/Tachometer-1-e1608375869715.png)
Electro Gadget
Digital Tachometer Using Arduino IR Sensor
![Led Chaser Using 555 Timer and 4017](https://circuitdiagrams.in/wp-content/uploads/2020/07/Led-Chaser-1-e1608376050451.png)
Electro Gadget
LED Chaser using 555 Timer and 4017 Counter
![Ultrasonic-Sound-Generator](https://circuitdiagrams.in/wp-content/uploads/2021/07/Ultrasonic-Sound-Generator.jpg)
Electro Gadget
How To Make Ultrasonic Sound Generator Using 555
![Infrared Sensor Using LM358](https://circuitdiagrams.in/wp-content/uploads/2022/08/InfraredSensorUsingLM358-scaled.jpg)
Electro Gadget
Infrared Sensor / Obstacle Detector Circuit Using LM358
home automation
![](https://circuitdiagrams.in/wp-content/uploads/2021/11/Alexa-Home-Automation-System.jpg)
Electro Gadget
Alexa Home Automation System Using Arduino IoT & ESP8266
![WiFi Smart Plug](https://circuitdiagrams.in/wp-content/uploads/2021/11/WiFiSmartPlug.jpg)
Electro Gadget
ESP8266 WiFi Smart Plug Using NodeMCU
![](https://circuitdiagrams.in/wp-content/uploads/2021/10/4-ChannelIRRemoteControlSystem.jpg)
Electro Gadget
4-Channel IR Remote Control System Using ATtiny85
Arduino project
![](https://circuitdiagrams.in/wp-content/uploads/2022/06/Wireless-Doorbell-System-Using-Arduino.jpg)
Electro Gadget
Wireless Doorbell System Using Arduino & RF Module
![](https://circuitdiagrams.in/wp-content/uploads/2022/04/IMG_20220423_145737.jpg)
Electro Gadget
Arduino Water Flow Rate And Volume Measurement System
![](https://circuitdiagrams.in/wp-content/uploads/2022/03/TemperatureControlledFanUsingArduino-scaled.jpg)
Electro Gadget
Arduino Temperature Controlled Fan Using DHT11 Sensor
![Arduino Based Door Lock System](https://circuitdiagrams.in/wp-content/uploads/2022/02/wp-1645376294596.jpg)
Electro Gadget
Arduino Based Door Lock System With Password
![](https://circuitdiagrams.in/wp-content/uploads/2022/01/Arduino-Bluetooth-Controlled-Robot.jpg)
Electro Gadget