lroc
July 12, 2025, 2:15pm
1
I wish to build a continuous low speed shaker and I found that a S30K Electric 2-wire BLDC motor (12V) from AliExpress (https://www.aliexpress.com/w/wholesale-S30K-Electric-Brushless-Motor.html ) paired with a Mini 5A 90W PWM 12V DC motor speed controller (https://www.aliexpress.com/w/wholesale-Mini-5A-90W-PWM-12V-DC-Motor-Speed-Controller-.html ) could work but I wish to conrol it via Arduino and I have zero experince with BDLC motors.
Can anyone recommend a compatible motor driver that would work well for this configuration (eliminating the usage of the speed controller)? or recommend other motor/driver setup?
Thanks
jim-p
July 12, 2025, 2:32pm
2
If that is actually a brushless motor, then you won't be able to control its' speed.
lroc
July 12, 2025, 2:52pm
3
OK. I have no prefrences for BLDC. I just need a good, reliable, low speed ,high torque and maybe low profile motor.
jim-p
July 12, 2025, 2:54pm
4
How low is "low" and how high is "high"
When I read your requirements, I think of a stepper motor, not a BLDC motor.
I agree. Talk in numbers, otherwise is wasting time.
jim-p
July 12, 2025, 3:02pm
6
Do you need to reverse motor direction and/or be variable speed?
lroc
July 12, 2025, 6:17pm
7
Thanks.
If we think about stepper motor without gearbox the min torque is 3.5 kg·cm higher even better. Gearbox is fine.
The max. RPM is 50.
My experience is that they get warm, and I wish to mount it in a 3D printed PLA housing. Therefore, is warming an issue?
jim-p
July 13, 2025, 8:56am
8
Then using a stepper is way overcomplicated.
A simple geared motor with a single MOSFET driver is all you need.
Therefore, is warming an issue?
Yes and you haven't even considered the heat generated by the driver.
Maybe a continuous servo. The good thing is that it has everything you need built in and you only need to provide a suitable power supply (Arduino is NOT a power supply) and a control signal from a microcontroller or even a 555 timer of your choice. It even has a direction control.
https://vi.aliexpress.com/item/1005005859470383.html Specification:
Model:5325LV-360
Dead band:4μs
Neutral Position:1500μs/50hz
Motor: Core motor
500-2500μs:360 Continuous Rotation
Voltage range:4.8V-7.2V
Operating Speed(4.8V):44rpm
Operating Speed(6.0V):55rpm
Operating Speed(7.2V):66rpm
Dimensions:40.5X20X40.5mm
Weight: 57g
Connector Wire Length: JR 260 mm
Bearing: 2BB
https://vi.aliexpress.com/item/4001189631333.html
system
January 9, 2026, 3:29pm
10
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