Sorry about 404. It works here. The RP2040 Raspberry Pi Pico is very common. The Raspberry Pi Foundation makes it. The same people who make the Pi5.
This is a 32-bit dual-core microcontroller that uses the STM32 instruction set. What makes it good is the large set of on-chip peripheral hardware. They have also made it VERY EASY to program. You do not need special software. The device looks like a mass storage thumb drive when plugged into a computer. You simply drag and drop the program to the “Pico” like you would to any external disk drive. Then when the Pico power cycles or resets, it runs whatever it finds in its memory. Price is right: $4. There are newer versions for a couple of bucks more that have features like being faster, having more memory, and WiFi. Here are a few links: https://www.adafruit.com/product/4864 Raspberry Pi Pico RP2040 adafruit.com https://www.digikey.com/en/products/detail/raspberry-pi/SC0917/16608257 https://www.raspberrypi.com/products/raspberry-pi-pico/ Buy a Raspberry Pi Pico raspberrypi.com > On Oct 18, 2025, at 12:25 PM, gene heskett <[email protected]> wrote: > > On 10/17/25 20:20, Chris Albertson wrote: >> Working on robotics but the same requirements. I have a high-speed BLDC >> motor and a 1024-count sensor. Some math…. 10K RPM is (rounding up) 200 >> revs per second or 200,000 pulses per second. And then there are several of >> these encoders. >> >> The solution is to spend $4 on a Raspberry Pi Pico. The PIO lines can >> handle a million+ pulses per second while tracking the quadrature counting. >> It is a dual-core microprocessor. I typically use one core for real-time >> work and the other for communications. You can program it with Arduino IDE >> or MicroPython. The latter is quite a lot better. How can it handle so >> many pluses? The PIO is a hardware state machine and each chip has 8 of >> them. >> >> https://www.seeedstudio.com/Raspberry-Pi-Pico-p-4832.html >> Raspberry Pi Pico - Raspberry Pi RP2040 chip, beginner-friendly >> microcontroller, small & flexible design, low power consumption >> seeedstudio.com > is a 404 here in US. >> >> >> >> >> >> >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Don't poison our oceans, interdict drugs at the src. > > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
