<![CDATA[GPIO Problem [Solved]]]>Is there anything special about GPIO 0 and 1? The reason I ask is that I have a small opto-isolated relay board which works perfectly if I connect it to GPIO 0 or 1, but none of the other GPIO pins operate the relay despite gpio and fast-gpio apparently changing the pin status in the same way.

I have two Omega 2 boards and they both behave identically.

I'm running the latest firmware on both boards.[link text](link url)

]]>http://community.onion.io/topic/2029/gpio-problem-solvedRSS for NodeSun, 19 Apr 2026 08:25:51 GMTFri, 05 May 2017 15:04:47 GMT60<![CDATA[Reply to GPIO Problem [Solved] on Sun, 07 May 2017 19:20:25 GMT]]>Is there anything special about GPIO 0 and 1? The reason I ask is that I have a small opto-isolated relay board which works perfectly if I connect it to GPIO 0 or 1, but none of the other GPIO pins operate the relay despite gpio and fast-gpio apparently changing the pin status in the same way.

I have two Omega 2 boards and they both behave identically.

I'm running the latest firmware on both boards.[link text](link url)

]]>http://community.onion.io/post/12976http://community.onion.io/post/12976Sun, 07 May 2017 19:20:25 GMT<![CDATA[Reply to GPIO Problem [Solved] on Sun, 07 May 2017 07:11:51 GMT]]>Run omega2-ctrl gpiomux get in console and show results.
I had a very similar problem when writing an LCD driver and it all eventually ended up in having wrong gpiomux configuration.

]]>http://community.onion.io/post/13001http://community.onion.io/post/13001Sun, 07 May 2017 07:11:51 GMT<![CDATA[Reply to GPIO Problem [Solved] on Sun, 07 May 2017 19:19:33 GMT]]>@Patryk-Wychowaniec Thanks - that allowed me to see which pins are set to gpio duty and solved my problem!

]]>http://community.onion.io/post/13010http://community.onion.io/post/13010Sun, 07 May 2017 19:19:33 GMT