The RS485-HAT is a TTL to RS485 converter for M5StickC. Among M5stack products we have 5 items that include TTL to RS485, they are RS485 unit, RS485 HAT, PLC, LAN, BASE26 they have different input voltage, vary from 5V - 12V. It consists of a 485 automatic transceiver circuit and a DC-DC buck circuit which can drop an input from 12V to 5V. It is used to convert the TTL standard to the RS485 standard. If the outside serial device is RS485 standard, you can attach this hat on top of stickc, to implement the communication with the RS485 device by TTL protocol. Features * Built-in SP485EEN * The built-in automatic transceiver circuit * Built-in DC-DC buck circuit * AOZ1282CI * input DC 12 V * BandRate up to 115200 * Program Platform: Arduino, UIFlow(Blockly, Python) Package Contents * 1x RS485 HAT * 1x 4 Pin 3.96 Pitch Terminal Specifications Resources Parameter Net weight 7g Gross weight 17g Product Size 35 x 24 x 8mm Package Size 40 x 42 x 30mm Resources * Documents https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2023-03-07 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2023-12-27 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2024-09-19 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2024-11-29 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2024-11-30 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2025-04-29 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2025-08-05 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2025-11-28 https://elecena.pl/product/22723896/m5stack-m5stickc-rs485-hat-aoz1282ci 2025-11-29