Page 1 of 1

Mating V2.1 with Arduino Ethernet

PostPosted: Thu Jan 02, 2014 9:23 pm
by FACE
It's pretty simple plugging the Arduino Ethernet to the DFRobot Relay, almost foolproof, but the ethernet port really causes a problem
with the 2.1 version. When they are plugged together, I apply power to the Arduino and the lights flash on the Arduino and the LED on the power supply flashes as well. If I apply power to the Arduino alone, no flashing. Looks to me like several pins on the Relay cant possibly make a proper connection to the Arduino. Most likely causing the flashing. Anyone else have this issue? Any suggestions? Thanks

Re: Mating V2.1 with Arduino Ethernet

PostPosted: Fri Jan 03, 2014 9:43 pm
by FACE
For the noobs like me, when the above happens, flip the PROG switch on the DFRobot out of program mode. :)

Re: Mating V2.1 with Arduino Ethernet

PostPosted: Sat Jan 04, 2014 11:55 am
by support
Thanks for sharing the knowledge. Greatly appreciated!