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--- firmware_install [2026/07/19 13:37] – [Introduction] walkeradmin
+++ firmware_install [2026/07/19 16:05] (current) – [Quick Test] walkeradmin
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 https://micropython.org/download/WAVESHARE_RP2040_ZERO/
+Note: this firmware is for the Waveshare (or compatible) RP 2040 device. I am using a Tenstar RP2040-Zero from AliExpress, and this firmware works with that.
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+<color #ed1c24>***NOTE*** You can use the Raspberry Pi Pico Firmware, but if you do things like the NeoPixel will not work.</color>
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+Download the latest .UF2 file (at time of writing <color #ed1c24>WAVESHARE_RP2040_ZERO-20260406-v1.28.0.uf2</color>)
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+While holding down the BOOT button, plug the board in to your computer USB, a window will open.
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+{{ :waveshare-firmware-install-001.png?600 |}}
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+Copy the downloaded firmware file to the window that just opened.
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+{{ :waveshare-firmware-install-002.png?800 |}}
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+Once the file is copied, the RP2040 will automatically reboot.
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+Once the unit reboots, it will come back and the onboard LED will be illuminated White (or a very light blue, not sure).
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+{{ :waveshare-firmware-install-003.jpg?400 |}}
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+That is the firmware installation complete.
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+----
+==== Quick Test ====
+When the firmware was installed, a file called main.py was created, and when the RP2040 rebooted, this file ran at boot.
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+This is what causes the LED to end up a white colour. However, if you press the RESET button, the device will reboot and you will see the code main.py does a bit more.
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+{{ :rp2040-neopixel_edit.mp4?480 |}}
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+Here we can see that the LED flashes from Red to Green to Blue, then goes to a static White.
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+----