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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/2024/08/smartiotenergymeterusingesp321528757904083105362.jpg)
Electro Gadget
IoT Smart Energy Meter Using ESP32 and Blynk 2.0
![Smart Motion Sensing Camera FTDI Module](https://circuitdiagrams.in/wp-content/uploads/2023/02/Smart-Motion-Sensing-Camera-FTDI-Module.jpg)
Electro Gadget
IoT based Smart Motion Sensing Camera
![Interface Different Sensors With Single ESP8266](https://circuitdiagrams.in/wp-content/uploads/2023/02/InterfaceDifferentSensorsWithSingleESP8266-1.jpg)
Electro Gadget
Interface Different Sensors With Single ESP8266 NodeMCU
![](https://circuitdiagrams.in/wp-content/uploads/2022/07/BluetoothHomeAutomationSystem.jpg)
Electro Gadget
Home Automation System Using Arduino And HC-05
![Controlling Appliances with ESP32 and MQTT Protocol](https://circuitdiagrams.in/wp-content/uploads/2022/03/Controlling-Appliances-with-ESP32-and-MQTT-Protocol.png)
Electro Gadget
Controlling Appliances with ESP32 and MQTT Protocol
![Tasmota Home Automation System Using ESP8266](https://circuitdiagrams.in/wp-content/uploads/2022/03/IMG_20220303_125009-scaled.jpg)
Electro Gadget
Tasmota Home Automation System Using ESP8266
Arduino project
![](https://circuitdiagrams.in/wp-content/uploads/2021/07/Untitleddesign28129-1.jpg)
Electro Gadget
Thunder And Lightning Effect Using Arduino And AC Bulb
![](https://circuitdiagrams.in/wp-content/uploads/2021/06/ArduinoDigitalVoltmeter.jpg)
Electro Gadget
DIY Arduino Digital Voltmeter: Step-by-Step Guide
![](https://circuitdiagrams.in/wp-content/uploads/2021/07/ArduinoDigitalClock.jpg)
Electro Gadget