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Servo Featherwing not working
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Servo Featherwing not working

by rybwood on Mon Jan 24, 2022 8:44 pm

I have a Servo Featherwing I'm trying for the first time. I have to connected to a Huzzah ESP32 board with stacking headers.

I gave it a separate 5v2a power supply, and the green LED is on. I loaded the "servo" demo from the library, and the serial window is showing the counter, but none of my servos are doing anything. I connected 2 servos, and moved them around to different outputs. When I first plug them in they twitch, then sometimes they stay powered and hold position, but usually after twitching they act like they are unpowered and turn easily by hand.

I'm using Turnigy 9g micro servos. I have been unable to find any data on their ideal pulse width, but they're very common hobby servos that people use in these applications.

As far as I can tell the program should run without any modification. There are no instructions regarding setting I2C pins, or anything. I'm using the default address and did not change the board address.

Thanks
-Ryan

rybwood
 
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Re: Servo Featherwing not working

by adafruit_support_bill on Mon Jan 24, 2022 9:18 pm

Please post some photos showing your soldering.

Also, run the i2c scanner and post the results here: https://learn.adafruit.com/scanning-i2c ... es/arduino

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Re: Servo Featherwing not working

by rybwood on Mon Jan 24, 2022 10:52 pm

I2C ran with no devices found. I tried "Wire" and "Wire1".

I checked every header pin against the hole next to them, and they all ohm out. The servos are getting 5.12v.
The stacking headers came pre-soldered on the Huzzah, and they all look good.

Note: The breadboard is just holding things together, there are no connections to the Huzzah or the power through the breadboard.
Attachments
servostacked.jpg
servostacked.jpg (689.26 KiB) Viewed 56 times
Servopins.jpg
Servopins.jpg (957.34 KiB) Viewed 56 times

rybwood
 
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Re: Servo Featherwing not working

by adafruit_support_bill on Tue Jan 25, 2022 6:19 am

That all looks fine. Can you post a photo of the bottom of your Feather Huzzah also?

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Re: Servo Featherwing not working

by rybwood on Tue Jan 25, 2022 3:01 pm

Huzzah pins
Huzzahpins.jpg
Huzzahpins.jpg (894.18 KiB) Viewed 51 times

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Re: Servo Featherwing not working

by adafruit_support_bill on Tue Jan 25, 2022 3:14 pm

That all looks good too. Please contact support@adafruit.com with a link to this thread and request a replacement Wing.

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Re: Servo Featherwing not working

by rybwood on Tue Jan 25, 2022 3:52 pm

Reached out to support, thanks for the quick help

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Posts: 9
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Re: Servo Featherwing not working

by rybwood on Sat Feb 05, 2022 10:48 am

Received the new Featherwing, soldered on new headers, worked right away.

Thanks for the help!

rybwood
 
Posts: 9
Joined: Sat Nov 13, 2021 4:51 pm

Please be positive and constructive with your questions and comments.