Hello,
I would like to be able to use the 3.3V output on a BrightSign player with a GPIO contact, to enable or disable the power to a device.
Exemple : connected to the 0 GPIO port. If the GPIO is ON, 3.3V power is delivered to the device, if the 0 GPIO port is OFF, the 3.3V power is cut.
How could I wire the pins 1 (GND), 2 (3.3V) and 3 (Button 0) between the devices?
Thank you very much for your help.
Regards,
Renaud Mogenot.
Use the 3.3v to switch a relay. You can pass the power supply that goes to the other device through the relay outputs.
Recently I have used an Arduino accessory relay module and connected it to a Brightsign GPIO without any problems.
(Search for "arduino relay board" and you'll find it)
This can be used to switch any voltage up to 240v and are available in just about any DIY electronics hobbyist shop
On paper the Arduino module want a 5v input to activate the relay. But 3.3v seems to be fine.
Connecting to the header pins on the board can be a bit fiddly as the are very close together. I made a header plug but you could solder direct.
And you will need a 12v power supply to power the relay board.
Otherwise HMS electronics will most likely have a "plug and play" board ready to go if you want to go that way.
I say most likely as Brightsign have just changed the GPIO from DB15 to Phoenix on their new models and I'm not sure if HMS have a solution for those new models yet.
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