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FEMU - An ESP32 Wi-Fi/Bluetooth board in TOMU form

Just for the sake of making it happen, I've designed an open-source TOMU form factor ESP32 design. It fits in a USB Type-A port.

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The FEMU (Femto's ESP32 ModUle) fits inside a typical USB Type-A port. The design includes an LDO regulator, an FTDI chip, an ESP32-D2WD (2MiB), and a GND + 3V3 + DAC pin on the curved edge. Note: this design uses micro vias, blind/buried vias on a 4 layer board!

I've contributed work to support MicroPython as well. https://github.com/micropython/micropython/issues/4986

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