ND-6063

Hello,

I am trying to use a 8 output relay to control 8 Lights of 12 Volts each here is the relay I am using http://www.labhitech.com/images/ND-6063.jpg

I need to send a signal to the RS 485 input of the relay, but i am not exactly sure how to send a signal from arduino to another device. Any One ever used similar Device ?

Thanks and Regards,

Mateo

If it is RS485 then you need an RS485 shield to convert the signals from the TTL levels to RS485. This is a simple serial port, To send something out to a serial port just use the serial print command.

Are you sure it is RS485 and not RS232?

yes It is a RS 485 . Do i need a max485 to build a RS 485 shield ? Do i need to build something like this described on this page http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1245014666

many Thanks.

Mateo

Do i need to build something like this described on this page

Something like that should be fine. You would really only need to make it into a shield if you wanted to make it more convenient to connect and disconnect.

Ran