Relay: Control Board
Infrared Remote Relay board and Remote 12 Channel
Low cost 12 channel Infrared Remote Control with relay board
Serial Port Relay Board (Serial Port I/O Module)
You can program this stand alone controller via PC Serial Port. Simply connect a serial cable from your computer to the connector on relay board.
Parallel Port Relay Switch Board
Use an old PC as a "dedicated controller" to turn on or off devices lab or radio shack. The circuit includes eight relays controlled with (included) software for either DOS or Windows 3.1. The kit is a boon to the Science Fair project, laborator
Parallel Port Relay Board
Use an old PC as a dedicated controller to turn on or off devices lab or radio shack. The circuit includes eight relays controlled with (included) software for either DOS or Windows 3.1. The kit is a boon to the Science Fair project, laboratory experiment
Dual Hi/Lo Switched Relay Board
There are many applications where you need quick availability of a relay for connection to a particular piece of apparatus. We found in developing our kits that we always needed to have a relay mounted on a PCB within arms reach.
Serial Port Relay Board Upgrade Kit
You can program this stand alone controller via PC Serial Port. Simply connect a serial cable from your computer to the connector on relay board.
Touch Switch Relay Board
Both a touch and a contact switch are built on one PC board so that the builder can see how each works. A battery can power the contact switch but you'll need an AC power supply for the touch switch to work well. The circuit switches a relay with a 3 Amp
Timer Circuits Relay Switches
Timer circuits are handy for many experimenters projects, not to mention the photo lab. This kit has three separate circuits that can be used individually or together. Each circuit has a separate 5 Amp relay. Circuits operate on 9 Volt DC.
Simple PCB Relay (Printed Circuit Board)
The primary function of this Relay Board is to turn devices on or off. It's simple!
Sound Voice Activated Relay Switch
This mini-VOX - voice operated relay - is based on a circuit published in Silicon Chip, 9/1994, p31.
LCD PLL Expansion Board
This LCD expansion board upgrades your exisiting BW PLL exciter / transmitter so that it has an LCD readout and easier frequency adjustment.
5 Comments - in RC Cars
This is a RC car project is the transmitter and receiver modules for a Remote Control car, with speed control and continuous steering.
Sound Activated Electronic Switch
Adjust the sensitivity of this circuit to control a Relay that can turn on whatever is connected to the contacts of the relay. Very practical circuit for a variety of projects. Turn on a light when your dog barks, or set of a siren when an intruder makes
Photo Sensor with Control Relay
The most popular use for this kit is to make you own night-light. It can also be used to switch just about any appliance on or off in light or darkness. Light sensitivity is adjustable over quite a range. The relay can handle up to 10 Amps at 110VAC. Oper
InfraRed Remote Control Switch - Infared Remote Control
Power on/off almost anything with this infrared controlled electronic switch. Some spell it Infared!
Broadcast Warehouse All-in-One 1 Watt FM Transmitter PCB (Fully Assembled)
This is the Brodcast Warehouse All-in-One PCB 1 Watt FM Transmitter. This item has a built in limiter / compressor & stereo encoder!
0 Comments - in Components
The company HiTechnic has recently released a new NXT Prototyping Board
USB Interface Board - (Universal Serial Bus Circuit)
Allows for connection to Personal Computers USB (Universal Serial Bus)