This is an 8-channel 5V relay module that can be directly controlled by a wide range of microcontrollers such as Arduino, PIC, and ARM. Four relays are included in this module, with "NC" terminals meaning "Normally Connected to COM" and "NO" terminals meaning "Normally Open to COM". This module is also equipped with 8 LEDs to show the status of the relays. It is active LOW!
Features:
- 8 mechanical relays with LED status indicators.
- Each relay has both "NC" and "NO" terminals.
- VCC is the logic power supply: 5VDC
- IN1, IN2, IN3, IN4, IN5, IN6, IN7, IN8 are the activation inputs for each relay. Logic 1 (5V) means the relay is inactive, Logic 0 (0V) means the relay is active.
