Electronics

Voltage-Detector-7

How to make AC Tester | Mains Voltage Detector Circuit | DIY

Introduction,            Hi and welcome back to a new tutorial. In this tutorial we are going to make this simple 3 Transistor contact less Mains voltage detector circuit. And understand how it works. Which can be really useful if you are working with mains voltage. And best part is that its contact less so without any […]

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Home Automation using NodeMCU | ESP8266 | Blynk

Introduction In this tutorial you will learn how to make simple home automation system using blynk environment and NodeMCU (ESP8266). So without any further a do lets get started! Materials & supplies Part List: ESP8266 2N3904 Transistor 5V Relay Resistors 1N4007 Diode Screw Terminal Tools: Soldering Iron Solder wire Helping Hands Schematic Step 1: Choosing

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