Waveshare USB to UART/I2C/SPI/JTAG Converter, Supports Multiple Interfaces, Compatible with 3.3V and 5V, Multiple Systems Support, Support Linux (Only for Raspberry Pi)

After 40+ years developing embedded Micro-controller equipment, I find this design to be impressive.Kudo's to all who developed this great multiprotocol interface.Solved a lot of monitoring issues.

Works as advertised and shipping was faster than expected.

I really like this product, I use it to interface an embedded device UART ports to connect to my computer and talk to the device. Really helpful when debugging embedded code.

I bought this to monitor an I2C bus using Linux.Despite their claims to support Linux, their Linux driver doesn't work and their technical documentation is utterly useless.

Nothing bad to say. They work with no fluctuation in voltage

Not truly Linux supported. Has a driver for kernel, but no user space software like what is listed for Windows. The Python sample code is incomplete and non-functional. One must write their own custom app from scratch using their API. Tech support is not helpful.

Claims Linux support, but that's only for Raspi. The device isn't compatible with any of the ch341 drivers if you want to use I2C. There are kernel drivers out there for CH34x that you can compile yourself, but these DO NOT work with this device. It has a different product ID, and even if you modify that in the drivers, it does not work.

Very simple, very handy device, a must have for IoT or hardware tinkerer. It replaces two USB/Serial converter cables. The case is conveniently labeled -- all signal pins have easy-to-read labels.The device is built around CH347T high-speed USB-to serial chip. UART modes do not need drivers in Windows 10/11, ports are automatically detected. Using device beyond USB<->UART conversion requires additional drivers or custom applications. I believe that I2C reader application is available and JTAG is supported in OpenOCD, but I do not plan to use the device beyond UART modes.3.3V to 5V lever converter is very useful. I wish the device also included 1.8 v converter.The CH347 IC also supports SWD port, but that functionality is not implemented in the device.Device comes with 3 cables, terminated with IDC connectors on the device end end and Dupont female on the other end.