【Overview】

[] Raspberry Pi 5 PCle to USB UART Expansion board

[] Model:MPUUART

[] PClE to USB2.0 design, one USB2.0 for UART expansion, another 3xUSB2.0 expanded by 1.25mm 4Pin connector, optional CM4 4G LTE.

[] 4xUART expanded by USB2.0 HS, configured to 2xRS232 and 2xRS485, and note that

the 2xRS232 could modify to TTL/CMOS level UART and expand by 2.54mm 3Pin.

[] RS232 baudrate up to 230Kbps at least(U0 connect to U3 could up to 1.2Mbps).

[] RS485 baudrate up to 500Kbps(U1 connect to U2 could up to 1.5Mbps).

[] TTL/CMOS level UART could up to 6Mbps.

[] 4xLED, one for power supply, one for ACT(USB to UART), and two for TXD/RXD.

[] Board size 56x85mm, same as RPi5.

[] Optional CM4 size 4G module, could stack up to 3x4G.

[] Driver-free, recognized as ttyACM* under PiOS and Ubuntu, ttyACM0/3 is RS232

ttyACM1/2 is RS485.

[] optional case.

[] Vcustomization supported, such as modify to 4xRS232 or 4xRS485.

【Specially designed for RPi 5】
[] Does not affect the use of Raspberry Pi 5 40pin GPO

[] MPUUART

To：

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