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Adafruit feather 8 channel servo driver.
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Adafruit feather 8 channel servo driver.

by turtleboi on Sat May 21, 2022 2:30 pm

Hi

I've recently purchased an Adafruit feather 8 channel servo driver for a school project.

No matter what I tried, the 8-channel feather servo driver is not working for me. It shows up on an i2c scanner, but the servos either jitter slightly or are completely unable to move. This is using both a feather rp2040 and a feather huzzah 8266. Both of them run and compile the servo test code for the 8 channel i2c driver. I have tested controlling the servos directly via pwm, and they work flawlessly.

I can't figure out what I'm doing wrong. Please let me know if you have any suggestions in regards to this.

Many thanks
Yossi Guetta
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turtleboi
 
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Re: Adafruit feather 8 channel servo driver.

by adafruit_support_mike on Sat May 21, 2022 11:12 pm

Post a photo showing your connections between the microcontroller and the Servo Driver and we'll take a look. 800x600 images usually work best.

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Re: Adafruit feather 8 channel servo driver.

by turtleboi on Tue May 24, 2022 8:36 pm

The feather board is stacked underneath the servo driver. Power is supplied to the feather through USB and the servo driver gets power from a 3.3v 1200mah lipo battery
Attachments
Screenshot_20220524-171829.png
The solder bridge is between ground pins, so it shouldn't matter.
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Screenshot_20220524-171746.png (750.8 KiB) Viewed 83 times

turtleboi
 
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Re: Adafruit feather 8 channel servo driver.

by adafruit_support_mike on Wed May 25, 2022 4:12 pm

Thanks. What are you using as a power source for the servos?

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Re: Adafruit feather 8 channel servo driver.

by turtleboi on Fri May 27, 2022 4:47 pm

A 3.3v 1200mah lithium ion battery.

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Re: Adafruit feather 8 channel servo driver.

by adafruit_support_mike on Fri May 27, 2022 9:35 pm

You need a 5V power source for the servos:

https://learn.adafruit.com/adafruit-8-c ... -1826145-3

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Re: Adafruit feather 8 channel servo driver.

by turtleboi on Sat May 28, 2022 11:24 am

Ok. I tried it with 5v and it worked! Thanks.

turtleboi
 
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Re: Adafruit feather 8 channel servo driver.

by adafruit_support_mike on Sun May 29, 2022 9:47 pm

Gladd to hear that did the job. Happy hacking!

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Please be positive and constructive with your questions and comments.