HOW TO MAKE DOOR SECURITY ALARM SYSTEM
Nowadays security is the more important role in our day to day activities, in general, we protect …
HOW TO MAKE AUDIO AMPLIFIER USING LM386 WITH NOISE REMOVAL
In this blog, we have to make an audio amplifier using LM386 and study how to remove noise in an …
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How to measure distance using Ultrasonic HCSR04 & ESP8266 Node MCU
We will learn about HC-SR04 widely known as Ultrasonic Sensor, how it works, and how to interface with …
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