ATM Source for "OFF-The shelf" half stepping -stepper controller

["Simon Mander" <compulsion@btinternet.com>]

I have found a good source for a stepper motor driver board.

rswww.com

Part number is 240-7920

Long link should work though if you copy and paste it into IE,

http://rswww.com/itc/scripts/Module.jsp?BV_SessionID=@@@@1548236558.09671938
19@@@@&BV_EngineID=ealijdffijibemfcfkmcggcg.0&usertype=account&productID=240
7920

Its a great little board, has selectable half-stepping as well. Can use the
on board clock that ranges from 20hz to 600hz. Adjustable with a 1M pot.
This is a little fast for our purposes, In order to drive my barndoor
tracker I used a 5:1 gearbox. In order to get down to the speed I needed
(16.667hz ish) I had to remove the pot and add a further 100k resistor in
series. Alternativly you could build an external quartz clock to drive the
board.
Cost from RS is only £20.

Cheers.