The ground (GND) between the microcontroller and relay power much be tied together on the GND input. 5-volt power for the relays is provided to the VCC and GND inputs, while 5-volt signal power is provided to the COM input, and microcontroller outputs are connected to IN1 to IN8. Each input also features activity LEDs showing the status of the relay contacts.īoard is a compact 79.5mm x 71mm (3.2” x2.8”) with a header for power-in, signal connections. Input to each relay is through an FL817C optical couplers to isolate your microcontroller project from the higher current relay contacts. These versatile 5V relay modules allow you to control 8 larger devices up to 10A using whatever flavour of microcontroller you prefer or even a simple. Relay contacts for the Normally Open, Normally Closed and Common pins are brought out to rising clamp terminal blocks allowing for easy connection. Each relay is capable of switching 10A of AC or DC current. HiLetgo 5V 8 Channel Relay Module the module voltage is 5V, 9,12 V, 24V Using SMD OPTOCOUPLER isolation + + 45.93 This item: HiLetgo 5V 8 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger 10. 5V 8 channels relay module Configureable Activation Logic, High or Low, via mini jumper Maximum Current Rating: 10A Maximum Voltage Rating: AC 250V Can.

8 Channel Relay Module for MicrocontrollersĮight independent optically isolated inputs connect directly to standard TTL level microcontroller (Arduino, PIC, 8051, AVR, ARM, MSP430, TTL Logic) output pins to control any of the eight high-current relays.

8 relay module