Adafruit feather 8 channel servo driver.

Please tell us which board you are using.
For CircuitPython issues, ask in the Adafruit CircuitPython forum.

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
turtleboi
 
Posts: 5
Joined: Wed Dec 29, 2021 7:20 pm

Adafruit feather 8 channel servo driver.

Post by turtleboi »

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
Attachments
Screenshot_20220521-112017.png
Screenshot_20220521-112017.png (707.27 KiB) Viewed 232 times

User avatar
adafruit_support_mike
 
Posts: 67485
Joined: Thu Feb 11, 2010 2:51 pm

Re: Adafruit feather 8 channel servo driver.

Post by adafruit_support_mike »

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

User avatar
turtleboi
 
Posts: 5
Joined: Wed Dec 29, 2021 7:20 pm

Re: Adafruit feather 8 channel servo driver.

Post by turtleboi »

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
The solder bridge is between ground pins, so it shouldn't matter.
The solder bridge is between ground pins, so it shouldn't matter.
Screenshot_20220524-171829.png (917.91 KiB) Viewed 196 times
Screenshot_20220524-171746.png
Screenshot_20220524-171746.png (750.8 KiB) Viewed 196 times

User avatar
adafruit_support_mike
 
Posts: 67485
Joined: Thu Feb 11, 2010 2:51 pm

Re: Adafruit feather 8 channel servo driver.

Post by adafruit_support_mike »

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

User avatar
turtleboi
 
Posts: 5
Joined: Wed Dec 29, 2021 7:20 pm

Re: Adafruit feather 8 channel servo driver.

Post by turtleboi »

A 3.3v 1200mah lithium ion battery.

User avatar
adafruit_support_mike
 
Posts: 67485
Joined: Thu Feb 11, 2010 2:51 pm

Re: Adafruit feather 8 channel servo driver.

Post by adafruit_support_mike »

You need a 5V power source for the servos:

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

User avatar
turtleboi
 
Posts: 5
Joined: Wed Dec 29, 2021 7:20 pm

Re: Adafruit feather 8 channel servo driver.

Post by turtleboi »

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

User avatar
adafruit_support_mike
 
Posts: 67485
Joined: Thu Feb 11, 2010 2:51 pm

Re: Adafruit feather 8 channel servo driver.

Post by adafruit_support_mike »

Gladd to hear that did the job. Happy hacking!

Locked
Please be positive and constructive with your questions and comments.

Return to “Feather - Adafruit's lightweight platform”