Ben S on Twitter: "Built it using two #RaspberryPi pico dev boards. One acts as a USB HID keyboard device for the computer and one acts as a USB host to read
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Concentrador de red USB para Raspberry Pi 4 B/3B +/3B/Zero W, puerto de red RJ45, divisor, módulo de placa de expansión|Circuitos integrados| - AliExpress
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power supply - Powering Raspberry Pi Zero when USB OTG is in device mode - Raspberry Pi Stack Exchange
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