Home Projects PC related The Relay Sub Board

 

 

The Relay Sub Board

source: http://www.southwest.com.au/~jfuller

 

Attach this board to the Simplified I/O Interface Board

 

Use nine pieces of hookup wire (or a piece of ribbon cable) to connect corresponding points on the I/O Demonstration Board to the Relay Sub Board. Connect 12 volts DC (smoothed) to the power input points on the I/O Demonstration Board. Solder in as many relays as you intend to use, each with its associated LED, resistor and 1N914 signal diode.

LATEST UPDATE: The board is now designed so that it may be cut in two to make two separate boards, each with four relays. This should be more than adequate for most purposes.

relaysub.gif (5788 bytes)

Parts List
8 (or less) 12 volt SPDT relays
8 x 3mm red LEDs
8 x 560 ohm 1/4 watt carbon resistors
8 x 1N914 (or similar) diodes
1 x PCB Relay Sub Board
Hookup wire

 

 

 
 

 

Search Site | Support us | Advertising | Profile | Books | Gadgets | Add your link here | Contact Us


IQ Technologies @ copy right 2008

Powered by Wild Host   Site Design By : FRIEND