4-Channel Relay Driver Shield

• Plugs straight into your Arduino-compatible board
• Individual LED status display on every output channel
• LED status display for external power
• Drive relay coils of 5Vdc to 24Vdc (with external power supply)

The 4-Channel Relay Driver Shield allows you to easily drive up to 4 relays using logic-level outputs from your Arduino or other microcontroller. Isolates your microcontroller from the relay coils using FETs, includes back-EMF protection, and works with a wide range of relays.  Perfect for home automation projects.