Content for BC547

Motion Activated Lamp Switch

“Whenever we leave our desk or room, most of the time we forget to turn off the lights there. This causes loss of electricity and increment in your electricity bill. But what, if the lights get turnoff automatically, after you …

How to Make Home Automation System Using Nodemcu ESP8266

“Today in this video tutorial I am going to show you Step by Step How to make a home automation control system using Nodemcu ESP8266 IoT Projects You, Will, Find Full Project Description & All Useful Material Including Circuit Diagram / Schematic …

DIY Musical Doorbell

“Learn how to make a simple musical bell using the UM66T melody generator IC. The Melody Generator will play Beethoven’s Fr Elise when triggered since it uses the UM66T-19L. There are different versions of this IC, each configured …

How to Make a Siren Generator

“Learn How to Make a DIY Electronic Siren Generator circuit that can produce police car siren, emergency ambulance siren & fire brigade sound using the IC UM3561a Siren Tone Generator. The circuit only requires a few components and can be put …

How to Make Automatic Irrigation System Using Arduino

“In this Instructables, I will show you how to build and implement an automatic irrigation system which can sense the water content in the soil and automatically irrigate your garden. This system can be programmed for different crop requirements and …

UChip - Serial Over IR!

“Wireless communication has become a key feature in our projects nowadays and talking about wireless, the first thing that comes to my mind is Wi-Fi or BT, but handling the Wi-Fi or BT communication protocols is not an easy task …

BCD Counter Using Discrete TRANSISTORS

“Today in this digital world, we creating different types of digital circuits using ics and micro-controllers. I also created tons of digital circuits. In that time I think about that how these are made. So after some research I find …

Spot Welder 1-2-3 Arduino Printed Circuit Board

“Some time ago I wrote an instructable where I explained how to control a spot welder in a sophisticated manner using Arduino and commonly available parts. Many people built the control circuit and I received quite some encouraging feedback. This …

Vacuum Fluorescent Display Controller

“A simple interface circuit to drive VFD displays. No fancy parts required, and runs on serial communication. What’s the Use? VFD displays are not trending anymore for some obvious reasons, they are made of glass (“uh cool!”), have an …

7.4V Two Step Lithium Battery Charger Circuit - CC and CV mode

“The advancement in Electric Vehicles, Drone and other mobile electronics like IoT Devices seems to be promising for the future. One common thing among all these is that they are all powered by batteries. Following Moore’s law the electronic …