Content for BC547

How to Make Battery Monitoring System With Over Discharge Protection & Battery Level Indicator

“In this project i will show how to build a Battery Monitoring System with Over Discharge Protection & Battery level Indicator. If you prefer watching video then i have embedded the same or if you like reading please continue with the …

Arduino CAP-ESR-FREQ Meter

“CAP-ESR-FREQ meter with an Arduino Duemilanove. In this instructable you can find all neccessary information about making a metering instrument based on an Arduino Duemilanove. With this instrument you can measure capacitor values in nanofarads and microfarads, the …

Sound Controlled LED’s - Pocket Disco

“Make your own pocket disco with some music controlled LEDs. All you need is some music or sound and theLEDs will dance around to the sound. This is a really run little circuit to build and only needs a few …

3 Easy Transistor Projects For Beginners

“In this instructables I will be making 3 Easy Projects using Transistors and some components and Battery. These are really easy projects that you can do for school project and can be constructed on breadboard and need NO Soldering!. The …

Two Clap ON - Clap OFF Circuits - 555 IC | 4017 IC

“Clap ON - Clap OFF circuit is the circuit which can be used to control variety of electronic equipment by just a CLAP. One clap turns the load ON and another clap turns it OFF. It’s very common and simple …

Programmable Cyclic Set On-Off Timer With Relay Output

“This project is to build cyclic on-off programmable timer. In this project user can set ON timer and Off time using keys and 7 segment display. Relay is provided as output, where relay will be remained ON for ON time …

Two Transient Clap Switch Circuits

“Transient Clap Switch Circuit is the circuit which turns ON with a clap sound. The output remains ON for some time and then turns OFF automatically. The time of activity can be controlled by varying the value of capacitance of …

Automatic Water Level Controller Using Transistors or 555 Timer IC

“Introduction: Hii Everyone here we are going to learn about Saving the water efficiently. so go through the steps and the Sentences carefully. Water tank overflow is a common problem which leads to the wastage of water. Though there are …

Build A $15 Remote Controlled Esp8266 Robot Butler / Car / Tank For Ios And Android

“Do you hate to walk to the kitchen to grap a snack? Or to get a new drink? This can all be fixed with this simple $15 remote controlled butler. In this Instructable we will be building a remote controlled …

Garage Parking Assistant

“Hi everyone, so……I have the tennis ball hanging from the roof in my garage to show where to stop when parking in the garage. (You know…..the one that constantly lobs you in the head when you walk around …