Communication and interface modules: CP2102, CH340, FT232 and PL2303 USB to TTL converters, MAX485 and RS232/RS485 converters, MCP2515 and TJA1050 CAN modules, W5500 and ENC28J60 Ethernet, SD card and flash storage modules, I2C LCD adapters, I/O expanders and USB/FFC breakout boards.