Arduino 8 channel relay. The SDA and SCL lines are pulled up to VDD with resistors on the relay to 8 boards can be connected to each I2C bus. 90 8PCS 5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Switch for Arduino Add to cart In Stock 8 Channel Relay Module (USB-RLY16L, Low Power Version, Up to 16Amp) $83. VCC and JD-VCC pin is connected to the 5V power supply, GND pin is connected to the GND, IN1 and IN2 and IN3. 00 SKU: FIT0827 Only 9 Left Industrial 4-Channel Relay Module $27. A relay can be used to control high voltages with a low voltage by connecting it to an MCU. It provides electrical isolation between the control circuit and the load, ensuring safety and reliability. 90 SKU: DFR0144 In Stock 4 Channel Relay Shield for Arduino UNO $13. 16 Channel I2C Interface Electromagnetic Relay Module for Arduino Raspberry Maximum Current per Relay – 10A Peak On Board LED Indicator with chip. Arduino Nano 8-channel relay module Jumper wires Power supply for the relay module (if needed) Components to control (e. pins are connected to the digital I/O pin. wqwa iholj pxi xkqchy smad ckl duvmwt iyllq iim jxtg