Short DC power-line pulses afford remote control - 10/25/01 EDN Design Ideas: if you face the challenge of adding a second, independently controlled light source to an existing ceiling lamp controlled by a wall switch, you may find that stringing a second power line is impossible. First, you can replace the wall switch by the circuit in Figure 1. Pushing the on switch S1 or S2 for approximately 1 sec inserts the 12V zener diodes D1 or D2 in series with the Design by Tom Hornak, Portola Valley, CA Simple RF Based Code Lock - This simple radio frequency (RF) based code lock incorporates a pair of 433MHz ready made RF transmitter and receiver modules. it is a remote-controlled and code-protected locking system. The code is...__ Electronics Projects for You
Simple Sensitive Remote Control Tester - Here is a handy gadget for testing of infrared (iR) based remote control transmitters used for TVs and VCRs etc. The iR signals from a remote control transmitter are sensed by the...__ Electronics Projects for You
Simple Circuit 4-CH Remote Control - You can construct your own long range infrared (iR) wireless remote using Motorola's MC145026 emitter and MC145027 detector chips. With your remote you can control devices up to 20 feet (7 meters) away. it operates similiarly to a TV remote. You just point the emitter at the detector, push a transmit button. The detector then interprets your data signal. You can use this circuit to remotely turn on/off devices (like a motors, relays, home appliances). __ Designed by Boondog web site
Simple Circuit Infrared Remote Control - This article will show you how to use the components in our infrared data communications parts KiT. __ Designed by Reynold's Elec
Simple Circuit Radio Control from Junk - Here we are going to make a simple radio controlled device using supplies from your local dumpster. This project should cost less than a dollar to make. if you spend more than a dollar on this project, you need to dig more. __ Designed by sixmhz @ yahoo.com
Simple Infrared (IR) Remote Control Circuit - infrared based electronic circuit diagrams / circuit schematics__
Single-Channel Remote Control - A simple but effective remote control, capable to compete (and sometimes to beat) most ready-made units. Plus application examples for remote door opening, remote-triggered timers, and on/off contact closures. __ Designed by Projects & Ideas from Nutchip.com
Six channel IR remote system with micro PIC 16F84 - This project is a remote control system based on a pic and an universal remote controller for TV, named SiMPLEX. __ Designed by Alfred73
SMS remote control v2.2 - Control up to 8 devices (On-Off or Reset) by sending a SMS message from any mobile phone, to ericsson T10s, of our circuit __ Designed by © Vassilis Serasidis
Solar Charged LED Utility Light - Tired of always spending money on flashlight batteries only to have them fail just when you need them? Try this simple circuit out. it would make an excellent science fair project. The white LEDs are quite bright, they provide enough light to illuminate a small room at night. The LEDs produce a nicely focused beam. You can read by the light of this device. __ Designed by G. Forrest Cook
Solid State Remote Control Switch - Here is a solidstate remote control switch which uses readily available electronic components. The control circuit comprises the transmitter and receiver sections. The range of the transmitter is around seven metres. The transmitter...__ Electronics Projects for You
Super Remote - Using a PIC 12F683 and a few transistors, it is theoretically possible to boost the power to a standard 433 MHz remote transmitter module. (Note hypothetical image at right) __ Designed by Luhan Monat-Mesa Arizona |