The post describes a simple homemade RF signal jammer circuit that can be used for jamming any RF signal within a radial range of 10 meters. The idea was requested by one of the interested readers of this blog. Technical Specifications I am not a large business interest, but am in need of a circuit […]
RF
Cellphone RF Triggered Car Amplifier Auto-Mute Circuit
The following article presents a circuit design which would mute your car amplifier music the moment it detects a cellphone call inside the car, enabling an automatic muting during the situations, and saving the user from the manual hassles. A loud music could be a nuisance while a phone call is being attended or dialed. […]
Simple RF Remote Control Circuit without Microcontroller
In this article I have explained how to make a simple RF remote control circuit using ready-made RF 433MHz and 315MHZ RF modules, and without incorporating microcontroler ICs. With the easy availability of RF modules today making an RF remote control has become a childs play. It’s all about procuring the RF modules ready made […]
How to Buy and Use RF Remote Control Modules – Control Any Electrical Gadget Remotely
Remote controls have always been an intriguing device for all of us because of one good reason: It allows us to operate distant gadgets with a flick of a button, without having to move an inch. Introduction Today with the advancement of technology remote control switches have become accessible very easily from the market and […]
RF Signal Meter Circuit
In this article I have explained the circuit details of a couple of very interesting and sensitive RF signal meters, which can be used for measuring the RF strength of the transmitted waves from the RF source without making any physical contacts with the source. Simple RF Signal Meter using IC 741 A RF signal […]
433 MHz RF Remote Control Encoder and Decoder Pinouts Explained
In this post I have explained the pinout assignments and functions of the popular 433 MHz RF remote control module from HOLTEK. RF 315 MHz / 433 MHz Transmitter-receiver Module for Remote Control Application Making your own universal remote control systems today is very easy. Such procure the relevant chips, assemble them and here goes, […]