MAX485 IC Low-Power RS-485/RS-422 Transceiver PIC16F73 this module gives you four

this module gives you four independently switchable SPDT relays in one compact board

1KB EEPROM

It supports 8 single-ended or 4 pseudo-differential inputs and features ultra-low standby current of 500nA

ATtiny85 AVR Microcontroller — 8-Bit AVR 8-Pin

SPI-compatible serial interface

MAX485 IC Low-Power RS-485/RS-422 Transceiver PIC16F73 this module gives you fourThe MAX485 IC is a low power transceiver for RS 485 and RS 422 communication. Each part contains one driver and one receiver. Unlike the reduced slew rate variants (MAX483, MAX487, MAX488, MAX489), the MAX485 features unlimited slew rate drivers, allowing data transmission up to 2. 5Mbps. Ideal for high speed industrial serial communication, building automation, and distributed sensor networks.