I'm building a system based on Raspberry Pi, here is a video of my project: http://www.youtube.com/watch?v=8XDXqGEavTw
I have a Raspberry PI Rev2 card.
I have connected a 16ch relaycard to the Rasberry Pi's GPIO pins.
I have connected them by the following schema (the numbers to the right is BCM GPIO pin number):
Ch1 - 2
Ch2 - 3
Ch3 - 4
Ch4 - 17
Ch5 - 27
Ch6 - 22
Ch7 - 10
Ch8 - 9
Ch9 - 11
Ch10 - 7
Ch11 - 8
Ch12 - 25
Ch13 - 24
Ch14 - 23
Ch15 - 18
Ch16 - 15
I have installed wiringPi and that part works.
I have trouble with alot of the pins are only able to change a relay channel one time, lets say i open a relay channel, after that i can't close it again.
I'm opening a relay channel with gpio export 3 out, and that turns a light on. Then i would expect that gpio export 3 in would turn the light off. But it's only the led on the relayboard that is affected, the relay doent click.
I have this problem on 3, 4, 17, 27, 22, 11, 8, 25, 24, 23 and 18. On 2, 10, 9, 7 and 15 it works just fine.
I'd really love som help here. Any ideas?