The ATOM RS-485 is a TTL-RS485 converter designed for use with M5Atomic. It's function is for TTL level and RS485 level-conversion. RS485 is a communication protocol standard, which is used to define the electrical characteristics of drivers and receivers of a serial communication system. It supports a multi-point system and is widely used in the industry. When the applications equipment needs to communicate and be controlled through RS485, the ATOM RS-485 is an excellent choice. A DC/DC voltage regulator chip is integrated in the ATOM RS-485, which can directly convert the 12V voltage of RS485 to 5V to supply power for M5ATOM, avoiding the trouble of using a separate power supply. Features * Compatible ATOM Matrix/ATOM Lite * SP3485EE * Built-in DC/DC * Multipoint communication Package Contents * 1x ATOM RS-485 * 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 Conversion level 5V12V level-conversion IC SP3485EE DC-DC A0Z1282CI Net weight 28g Gross weight 38g Product Size 24*48*18mm Package Size 54*54*20mm Case material Plastic ( PC ) Resources * Documents https://elecena.pl/product/22723884/m5stack-atom-rs485-dc-dc-voltage-converter-development-kit-sp3485ee-discontinued 2023-03-07 https://elecena.pl/product/22723884/m5stack-atom-rs485-dc-dc-voltage-converter-development-kit-sp3485ee-discontinued 2023-03-27 https://elecena.pl/product/22723884/m5stack-atom-rs485-dc-dc-voltage-converter-development-kit-sp3485ee-discontinued 2023-07-15 https://elecena.pl/product/22723884/m5stack-atom-rs485-dc-dc-voltage-converter-development-kit-sp3485ee-discontinued 2023-12-27 https://elecena.pl/product/22723884/m5stack-atom-rs485-dc-dc-voltage-converter-development-kit-sp3485ee-discontinued 2024-09-19