The ATOM RS-232 is a TTL-RS232 level-converter designed for use with the M5Atomic module. RS232 is a full-duplex communication protocol standard, which defines the electrical characteristics of the serial communication system. A MAX232 chip is in the module, which supports bidirectional conversion between TTL level and RS232 level. A DC/DC voltage regulator chip is integrated in the ATOM RS-232, which can directly convert the 12V voltage of the RS232 hub to 5V to supply power for ATOM. Features * Compatible ATOM Matrix/ATOM Lite * Built-in DC/DC * Full-duplex communication Package Contents * 1x ATOM RS-232 * 1x ATOM Lite * 1x Hex Key * 1x M2*8mm Hexagon socket cup head machine screw * 1x 18cm TYPE-C Cable Specifications Specification Parameter External port VH-3.96 4P level-conversion IC MAX232 DC-DC A0Z1282CI Net weight 26g Gross weight 36g Product Size 24 x 48 x 18mm Package Size 54 x 54 x 20mm Case Material Plastic (PC) Resources * Documents https://elecena.pl/product/22723883/m5stack-atom-rs232-voltage-converter-development-kit-max232-discontinued 2023-03-07 https://elecena.pl/product/22723883/m5stack-atom-rs232-voltage-converter-development-kit-max232-discontinued 2024-09-19