hi all, Im looking for suggestions on a stepper driver that is very small, and supports microstepping.
Thank You
Pololu has the best selection. Be sure to select one that can handle the rated current for the motor you have chosen.
thank u but I was looking for specific suggestions of exact steppers. Im not an expert and they seem to have different chip sets etc.
as to the the load, it is VERY light this will drive a car instrument cluster stepper... (or similar), very light draw it only moves an indicator needle. I just realized, these are 4 wire steppers, does that mean they can do microstepping? (I think we can assume they do since they were used in a Chevy automobile)
thank u
Then provide specific details.
For instrument clusters, use a gauge motor driver, designed for the type of cluster you have. There are many.
For the bipolar steppers like the NEMA17 steppers on 3D printers, the A4988 and DRV8825 drivers are pretty small. I know of none smaller.
DRV8825, TMC2209 same size.
Is there any difference that would matter regarding which chipset?
OK this is an Arduino tachometer for a small diesel engine, in a custom housing. The steppers are for a Chevy (I bought them on Amazon). I have Arduino nano and did this before except my driver did not support microstepping so the needle jumps too much. This time I am incorporating microstepping to get a smooth needle. A programmer is helping me and the last tach is fully operational.
So I am needing help to choose a stepper (preferably accepts 12-13.5v) that supports microstepping.
These are the steppers I bought: Amazon.com: Partsam x27.168 27 168 Instrument Cluster Gauge Stepper Motor Repair Kit fit Replacement for GM/Chevy/Buick//Pontiac/Silverados/Tahoes -6Pcs : Automotive
Now I just need a microstepping driver that is small like the arduino nano) so it will fit inside the housing.
jremington thank you for the pololu lead! that page has a ton of them and I almost could choose one that accepts the correct voltage but I am just trying to make sure. Since this is powered by an alternator, the arduino runs on up to 12 volts, and the system will run at 13.5v when running. I think I can just get a tiny VR chip and run the power through that (?)
Thanks guys
It is my understanding the X27.168 gauge steppers use a microstep driving protocol that is very different from standard two phase stepper motors, but I have not looked carefully at the details.
Take a look at this page for dedicated gauge stepper drivers: https://guy.carpenter.id.au/gaugette/2017/04/29/switecx25-quad-driver-tests/
Edit: you can buy boards containing the VID6606 driver chip on Tindie: https://www.tindie.com/products/propwashsim/vid6606-sti6606-4x-stepper-driver-for-x27168/
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