In this article I have explained a simple Bluetooth function generator circuit which can be used for testing and troubleshooting various critical audio video equipment and gadgets Using a Function Generator Function generator is vital equipment for an engineer, professional, hobbyists, or someone who reached above “beginner level” in electronics. Function generator is an expensive […]
Wireless Circuits
Make a Walkie Talkie Circuit using FM Radio
In this post I have explained how to make a simple homemade walkie talkie circuit using ordinary FM transmitters and FM radios. It’s a perfectly tested design by me. I could talk with my nephew who stays on first floor through a pair of these transmitters with crystal clear transmission. Overview In one of my […]
Simple Cellphone Jammer Circuit
This is a RF jammer designed for the U.S. 800 MHz cellular phone band (870-895 MHz). This works by generating an overwhelming sweeping RF carrier on the cell phone handset’s operating frequency range. Circuit Operation An Exar XR2206 Multi-purpose Generator is going to function as the triangle wave generator for supplying the sweep part of […]
Long Range Transmitter Circuit – 2 to 5 Km Range
The proposed long range transmitter circuit really is very steady, harmonic free design which you can use with standard fm frequencies between 88 and 108 MHz. Technical Specifications of the Transmitter This will likely encompass 5km spectrum (long range). It includes an extremely consistent oscillator for the reason that you employ LM7809 stabilizer that is […]
Making a Wireless Doorbell Circuit
Today the traditional wired type of doorbells are gradually getting obsolete and are being replaced by the advanced wireless type of doorbells that are easier to install due to their hassle free set-ups. A simple wireless doorbell circuit is discussed in the following post which can be constructed at home. Written and Submitted By: Mantra […]
RFID Reader Circuit using Arduino
In this article we are going to take a tour on RFID circuit technology. We will be exploring how RFID tags and readers work, how to interface RFID module (RC522) with Arduino and extract some useful information from the RFID tags. Using RFID Tags I am sure every one of you has used RFID to […]