PicoMite 2 HDMI USB I2S board....


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matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 11194
Posted: 12:09pm 01 Jan 2026      

  Quote  The CMM2 PCB would probably have been a lot cheaper if it hadn't been for the awkward cutouts for the WII connectors.

Makes no difference. The issue is that the CMM2 is 4 layer and bigger.
However, the cost difference isn't that great 10-off and the CMM2 is twice as fast as a RP2350 overclocked to the maximum and has 32Mb of high speed memory rather than 8Mb of low speed.
Gerry is bringing the CMM2 up to the latest code level of the Pico. The big downsides of the CMM2 are VGA only but I'm thinking about including a TFP410 to do onboard conversion to HDMI and no USB HUB support so only a USB keyboard. This is the biggest issue. There is a new stack for the STM32 (USBX) which solves that but is a major enhancement. You could also put audio over HDMI using the ADV7513 rather than the TFP410 but that would also mean implementing I2S audio on the CMM2.