This post is for Ethernet relay boards that you can find on Ebay or Amazon under $40. This is great way to start home automation. My long term plan is do home automation with these boards. At this moment I dont have time for this, if anyone does home automation using these, please email me…
My other post relating to making one by your self using old HP print server link
For $30+ you could can get this board called WebControl (8 ports), its made by cainetworks.com There are two version PLC and BRE (get PLC if newbie). You can get one on Ebay, or Amazon has it as well. I have 2 of these, one major problem is that during power up they will fire relays. Have used this for garage door, but had problem that it would open garage door during power up.
More details on CAI WebControl at my other post with more details and Windows control software.