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Topic: Wrobot / Emartee / Ywrobot relay board... (Read 19 times) previous topic - next topic


Hi, Before you do that (or while you are waiting..) try some of the other things, like separating the wiring, using shielded wire to the relay coils etc.
Regards, Terry King terry@yourduino.com  - Check great prices, devices and Arduino-related boards at http://YourDuino.com
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This is just a follow-up. I could not try those other solutions because I only have one power supply available and everything was already fully wired up. However, I got a new relay board, the one that is on your picture, and it works perfectly well. So it's all good now!


If I may add 1 cent.. I just got one of those boards, model is 530677. It's transistor based board with GND connected to both relay and logic.

What bothers me is: the VCC going from NPN transistor's collectors run past relay mains less than 1mm apart for all 8 relays! This will be a real blast when using 250VAC and I think I will go implement my own solution.

Just wanted to let you know.


A secondary relay can be added, triggered by the first, so that the high voltage doesn't have to pass through the board.

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