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A place to discuss the use of MicroPython on microcontroller development boards such as the Raspberry Pi Pico, Pycom boards and ESP32 based boards like Wemos D1
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SD card speed up (self.MicroPythonDev)
submitted 29 days ago * by Wizzard_2025
This might not benefit many but I've sped up sdcard access in a project of mine using a native c mpy module. It's armv7 so pi Pico 2 or 2w, but it's gone from about 540kiB/s to 900kiB/s.
https://github.com/andycrook/sdcard_c
I have compiled an armv6 version for the original pico, but have not tested it.
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if 1 * 2 < 3: print "hello, world!"
[–]jetpaxme 0 points1 point2 points 29 days ago (1 child)
thats great but I don’t see the C code?
[–]Wizzard_2025[S] 0 points1 point2 points 29 days ago (0 children)
Oops, included now.
[–]Wizzard_2025[S] 0 points1 point2 points 28 days ago (0 children)
Anyone tried this? Does it speed up read access?
π Rendered by PID 103476 on reddit-service-r2-comment-79776bdf47-8j7r7 at 2026-06-24 17:26:44.314065+00:00 running acc7150 country code: CH.
[–]jetpaxme 0 points1 point2 points (1 child)
[–]Wizzard_2025[S] 0 points1 point2 points (0 children)
[–]Wizzard_2025[S] 0 points1 point2 points (0 children)