What about other input/output sensors and actuators from DFRobot (such as the DFRobot Single Relay
Product code : RB-Dfr-35 on the http://www.robotshop.us/dfrobot-single-relay.html website). It seems to me that the pins are switched (1 = signal, 2 = voltage, 3 = ground). Would they work with a special cable with the FEZ Mini Starter Kit?
Yes they should work fine but you need to swap modify the cable. The only reason we do not stock them is that we have to change the cable, which is not easy for very beginners.
If anyone has actually used this dfrobots relay I’d like to hear if you had success and how you used it. I can’t seem to make it work.