The converter supports both 3.3V and 5V serial logic levels and uses three LED indicators for power connection, data transmission, and data reception. In this article/video, I introduced a cheap USB to UART converter module that uses the MCP2200 chip from Microchip. There is nothing wrong with FTDI chips, however, they are expensive. The initial thought of many designers is to use FTDI chips to do the USB to UART conversion. In many scenarios, there is no need to communicate with the USB port directly, therefore electronic designers use USB to UART (RS232-Serial) converter chips, so the USB port is converted to a virtual COM port on the computer. Nowadays USB port is used widely for data transactions between electronic devices and computers.
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