http://www.epanorama.net/phpBB2/viewtop ... 6&start=30
Velleman K8056
http://www.velleman.be/common/product.A ... &id=351282
This relay card can be used in several ways : stand alone card, addressed by switches or open collector outputs or remote controlled through RS232.
It has eight relay outputs (5A 230V AC).
It uses quite simple looking ASCII based control protocol that consists of simple few character ASCII strings sent to RS-232 port at 2400 bps speed (2400N-8-1 settings). Manual includes instructions of the commands to use to control. This kit is claimed to come with grpahical Windows control software. Web page http://vesta.homelinux.free.fr/dotclear ... ous-linux/
has some Linux control software for this kit.
Looks very interresting for any home automation application.
I got one card myself and started testing with it.
Actually go got VM118 8-CHANNEL RF REMOTE CONTROL SET module cheaply http://www.velleman.be/es/en/product/view/?id=355442
That module uses the same parts as K8056 kit does. The circuit board is same, microcontroller is same and so is most otehr components. That module is just ready built with RF receiver part soldered to circuit board.
This VM118 module did not have RS-232 input option, but it could be easily added just by sodering few components (one transistor, one zener diode, few resistors) to the circuit board according the K8056 kit documentation.
The end result was a well working kit that works like K8056 with RF option.
I tested the module with RS-232 connection and it worked well with the Linux software from http://vesta.homelinux.free.fr/dotclear ... ous-linux/
