DC Motor + Stepper Wing low current output

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
sebastienperth
 
Posts: 113
Joined: Fri Jan 15, 2021 4:21 pm

DC Motor + Stepper Wing low current output

Post by sebastienperth »

Hello,
I have a DC Motor/stepper wing that is only putting out 0.05V from one of the 4 DC motor connections.
I was just testing out a motor I salvaged from a EZ/IO driver. It's a 12v DC geared motor.
It worked at first, and then about 10-15 seconds into working, it stopped.
I tested the other motor ports, and they are outputting the expected voltage based on the throttle setting.

Did I fry something?
Here's the very basic code I tested. The problem is only happening on M1.

Code: Select all

import time
import board
from adafruit_motorkit import MotorKit

kit = MotorKit(i2c=board.I2C())

while True:
    kit.motor1.throttle = 1.0
    kit.motor2.throttle = 0.25
    kit.motor3.throttle = 0.5
    kit.motor4.throttle = 1.0

User avatar
sebastienperth
 
Posts: 113
Joined: Fri Jan 15, 2021 4:21 pm

Re: DC Motor + Stepper Wing low current output

Post by sebastienperth »

I should have mentioned the wing is powered by a 12v source.

User avatar
adafruit_support_bill
 
Posts: 88040
Joined: Sat Feb 07, 2009 10:11 am

Re: DC Motor + Stepper Wing low current output

Post by adafruit_support_bill »

Do you have any electrical specs for the motor?

User avatar
sebastienperth
 
Posts: 113
Joined: Fri Jan 15, 2021 4:21 pm

Re: DC Motor + Stepper Wing low current output

Post by sebastienperth »

I couldn't find the datasheet online.
The markings on it say:
DC geared motor
IG22C002045U62R
DC 12 V
No.18349058
SHAYANG YE Industrial Co. ltd

User avatar
adafruit_support_bill
 
Posts: 88040
Joined: Sat Feb 07, 2009 10:11 am

Re: DC Motor + Stepper Wing low current output

Post by adafruit_support_bill »

The manufacturer's website has mechanical specs - but nothing about the electrical specs:
http://www.shayangye.com/en/product-inner.aspx?f=s&i=39

If the motor pulls more than 1.2A for more than a few milliseconds, it is possible that it damaged the H-Bridge driver on the Wing.

If you have a multimeter, you can test the current draw of the motor when powered directly from your 12v source.

User avatar
sebastienperth
 
Posts: 113
Joined: Fri Jan 15, 2021 4:21 pm

Re: DC Motor + Stepper Wing low current output

Post by sebastienperth »

I suspect that is what happened.
Shoot... but good to know.
Thank you!

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

Return to “Feather - Adafruit's lightweight platform”