This is a 12V Modbus RTU 8 Channels Relay Module Input Optocoupler Isolation RS485 MCU. It is used to control various appliances and other equipment with a large current. It can be controlled directly by a Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). 12V 8-Channel Relay interface board and each one needs 50-60mA Driver Current. Equipped with high-current relay, AC250V 10A ; DC30V 10A.
Features: – Modbus serial communication – Relay switching output – Convenient AT command control