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You are at:Home»Technology»The RP2040 Doth A Motor Controller Make
Technology

The RP2040 Doth A Motor Controller Make

Paul EasterBy Paul EasterJune 15, 2022No Comments2 Mins Read
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When the Raspberry Pi people launched their RP2040 microcontroller, it seemed as though it might be destined as a niche product for those areas in which the Pi has traditionally been strong. But during the global semiconductor shortage, it has remained almost alone among microcontrollers in having plenty of fab capacity to keep the supplies rolling. That, and its very vanilla set of ARM peripherals alongside those programmable state machines have thus seen it find a home in many places it might not otherwise have seen. Take the dual RP2040 motor controller from [Twisted Fields] as an example, would it have been more likely to have sported an STM32 in previous years?

It’s been produced as part of the Acorn Precision Farming Robot platform, and it’s a fully open-source two-channel controller on a board the same size as a credit card. The schematic appears fairly conventional through a cursory glance at the PDF, but we know from experience that motor controllers are never as deceptively simple to get right as their circuit would lead the unwary engineer to believe. The heat dissipation, current, and transient handling all play a part in a successful design, and we expect this one to evolve to fix any issues it might still contain.

If you’d like to remind yourself about the Acorn farming robot, then take a look at our earlier coverage of the project.

Thanks [Mark] for the tip.



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Paul Easter

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