2009/7/11 Hadley Rich wrote: > I don't really know much about Mosbus, but, if you just want to be able > to control relays and things from a Linux server, and aren't phased by > the protocol, then I would look at the Arduino boards as an easy, open > source way of doing things.
Yep. I just want to turn relays on and off from a Linux server. The less assembly required the better - my solder joints look terrible. I'm also looking at an NCD ethernet relay board. I'll consider pre-assembled Arduino stuff too. Looking to spend under NZ$200 for eight relays on a board that can talk to a linux server. Prefer under $150. The server will decide when relays are on and off. There needs to be an easily scriptable way for the server to send commands like: Relay X on Relay Y off Relay Z, are you currently on or off? (ie read status) I considered ModBus because I gather there are Linux drivers for it. The NCD ethernet relay board can be used with a driver that maps the IP address of the board to a COM port (there is a Linux version, which I suppose would map to /dev/ttySX). If I go with an ethernet board, the server will have a separate ethernet interface directly connected to the board, since the board will take commands from anyone. Yuri
