1PCS 8DI-8DO Digital Input and Output Module Optocoupler Isolated RS485 MODBUS

8DI-8DO Digital Input & Output Module Optocoupler Isolated RS485 MODBUS DC 7-25V

ESP32-S2 DevKit Development Board Core Board ESP32-S2-WM Module Single Core

32CH DIN Rail RS485 Digital Input Controller Module MODBUS RTU PNP NPN DC12V 24V

Universal 32-65 Inch LED TV Backlight Inverter 80-480mA Constant Current Board

Nano V3.0 Type-C / Mini USB ATmega328P-AU CH340 5V 16MHz Driver Micro Controller

4 Channel 3.3V-5V Logic Level Converter Bidirektional Shifter Modul

DC 12V 16 Channel RS485 Remote Control Switch PLC IO Expansion Board Modbus RTU