Datasheet

Pinouts

Relay Control

Controlling the relay is really simple. The relay uses a single pin for control. When floating or pulled low, the relay is

'open' or unset. When the pin is pulled high, the relay switches closed/set. A red LED next to the pin will let you know

that the signal is high. You will need to solder closed a jumper on the bottom to match the pin you want to use for

control.

When the relay is closed it will draw approximately 100 milliamps (yep! its a big relay and the voltage is only 3.3V) so

keep that in mind when using a lot of accessories, sensors and devices on the 3.3V power line.