ODrive Micro

[Stephen Williams]

Costs 4+ times as much ($80 now, $90 later) as I would like for product use, but perfect for development.  All of the communications options, the web interface, and compatibility  with their other products is great.  Clearly must be using one of the all-in-one FOC capable chips as it is limited to 180W.  In their table, they list comparable competitors, 3 of which also have a nice enough price.

https://www.crowdsupply.com/odrive-robotics/odrive-micro

Nice that small drive boards are proliferating, although while aiming at uses like surgical robotics many aren't trying to drive costs down much yet.

https://www.ingeniamc.com/product-finder

Seems like we ought to be able to pair a $5 FOC chip with a $1 microcontroller on a $4 board for a range of uses.

sdw

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Stephen D. Williams Founder: VolksDroid, Blue Scholar Foundation 650-450-8649 | fax:703-995-0407 | s...@lg.net | https://VolksDroid.org | https://BlueScholar.org | https://sdw.st/in

[Chris Albertson]

I missed what you were looking for.    For tiny BLDC motors you can find very nice driver electronics that allow FOC for maybe $5 or less.   This are all you need for software development.  Then once you have a 3D printed light weight prototype working on a desktop stand.  Build the full power version.

Sorry for the long URL but see this.  I have a few of them and I can drive gimble motors very well with precise movements.  Very easy to use.

Here is the motor just about everyone starts with.  It works well with the above driver and any RP2040, STM32 (blue pill) or ESP board you happen to have around..  They are cheap enough that you are not mad at yourself if some error burns up the motor and they are very fast, just not a huge torque.

   

But if you want to drive 80 volts and 60 amps with continous duty cycle then you are looking at about $300.      

The kickstart is OK, but $79 is too much for those specs.   You can do much better for about $20

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