<![CDATA[Using fast-gpio with the servo expansion]]>Has anyone had any luck using fast-gpio with the servo expansion? I hooked mine up to a 5v power supply and a 9g micro servo and ran 'fast-gpio pwm 14 200 25' in Terminal and got nothing. I got GPIO port 14 from the example, is that why it's not working? I'm plugged into servo port S0 too, I wasn't sure which to use so I just chose one. I'm new to this type of programming so bare with me if I'm way off base here. Thanks in advance!

]]>http://community.onion.io/topic/75/using-fast-gpio-with-the-servo-expansionRSS for NodeMon, 13 Apr 2026 08:17:19 GMTWed, 11 Nov 2015 05:05:22 GMT60<![CDATA[Reply to Using fast-gpio with the servo expansion on Wed, 11 Nov 2015 05:21:02 GMT]]>Has anyone had any luck using fast-gpio with the servo expansion? I hooked mine up to a 5v power supply and a 9g micro servo and ran 'fast-gpio pwm 14 200 25' in Terminal and got nothing. I got GPIO port 14 from the example, is that why it's not working? I'm plugged into servo port S0 too, I wasn't sure which to use so I just chose one. I'm new to this type of programming so bare with me if I'm way off base here. Thanks in advance!

]]>http://community.onion.io/post/506http://community.onion.io/post/506Wed, 11 Nov 2015 05:21:02 GMT<![CDATA[Reply to Using fast-gpio with the servo expansion on Wed, 11 Nov 2015 05:19:24 GMT]]>@Rob--Marston The Omega communicates with the Servo Expansion via I2C. So you shouldn't use the fast-gpio library with it. If you are familiar with python, here's a I2C library we had used before: https://github.com/OnionIoT/Python-I2C (we are currently writing an i2c library in C/C++, and also a servo expansion library based on that.

]]>http://community.onion.io/post/507http://community.onion.io/post/507Wed, 11 Nov 2015 05:19:24 GMT<![CDATA[Reply to Using fast-gpio with the servo expansion on Wed, 11 Nov 2015 18:07:04 GMT]]>That explains it! Do you know who authored it? I'd love to see an example of how it's used. I have some understanding of Python but aren't really sure how to use the library to actually move the servos. Anyway, thanks again for your help @Boken-Lin -- love the Omega 🙂

]]>http://community.onion.io/post/539http://community.onion.io/post/539Wed, 11 Nov 2015 18:07:04 GMT<![CDATA[Reply to Using fast-gpio with the servo expansion on Wed, 11 Nov 2015 18:15:50 GMT]]>@Rob--Marston There's a Servo Expansion application available on the command line: pwm-exp

Check out this help desk article for a full guide

]]>http://community.onion.io/post/541http://community.onion.io/post/541Wed, 11 Nov 2015 18:15:50 GMT