MCB4277 - 8 Channel Relay Driver Shield

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Drive up to 8 relays from your Arduino using just 2 I/O pins with this shield. It communicates with your board using I2C, so you can even stack several shields together to drive 16, 24, or more outputs! Includes back-EMF protection and works with a wide range of relays. Perfect for home automation projects when combined with relay SY-4052 and DIN-rail relay mounting base SY-4063. • Plugs straight into your Arduino-compatible board  • Just 2 I/O pins required to control 8 outputs  • Individual LED status display on every output channel  • LED status displays for host power and external power  • Drive relay coils of 5V to 24V (with external power supply)  • Suggested relays like SY-4052 are rated at 2 x 5A @ 240VAC  • Dimensions: 52(W) x 66(H) x 12(D)mm