#ch340 #uart #usb #ch343p #ch343g #ch343k The CH343 series is the 3rd generation USB-to-Serial/UART bridge chip. Compared with the previous two generations, it has greatly improved in many aspects such as the baud rate support range, the number of IO voltage options, and the temperature range. This video introduces the main features of CH343 and the environment that needs to be configured before use. For different usage scenarios, we used the modules made of CH343G to conduct a real machine demonstration. BaudRate: up to 6Mbps I/O voltage: 5V/3.3V/2.5V/1.8V