4 Channel Relay Module Breakout Board (5V) motor drivers 8 Kbytes of Buffer RAM

8 Kbytes of Buffer RAM and an SPI serial interface for 3

Like most lithium-ion packs

making it an ideal driver for small motors that run on relatively low voltages

or simply the photocell

you can use the stacking headers included

4 Channel Relay Module Breakout Board (5V) motor drivers 8 Kbytes of Buffer RAMThis quad (4) channel Relay Module operates at 5V TTL signal and is perfect for common Arduino Raspberry Pi control applications. This is a 5V 4 Channel Relay interface board which can switch up to 10Amps. Relays terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the board very easy. The relay is safely driven by transistor BC547 hence your input device, such as Arduino, is protected from relay circuit. There is flyback