DFRobot (DFR0021-B) Add-On Board, LED Light Module, Blue

Product Information: Accessory Type: Digital Blue LED Light Module For Use With: Arduino IO Expansion Shield Product Range: Gravity Series Product Overview Digital blue LED light module has a shiny blue colour ideal for Arduino starters. This module can be easy to be plugged on IO/sensor expansion shield. LED is wired to light up when the signal pin is set to low, preventing the LED from demanding too much current from the microcontroller Pins: 1 - Control Terminal; 2 - Power Supply; 3 - Ground Applications Embedded Design & Development, Electronics Design, IoT (Internet of Things), Hobby & Education