toymaster458
Active Member
I am looking for a USB Relay board that can grow up to around 100 normal open and or normal closed contacts and that I can get a Visual Basic SDK and that is economical in price.
I have so far found these
http://www.sealevel.com/product_detail.asp...Modbus%5FRTU%5F
Wondering if any knows of any others?
I have so far found these
http://www.sealevel.com/product_detail.asp...Modbus%5FRTU%5F
Wondering if any knows of any others?