{"title":"Gravity:Digital RED LED Light Module","handle":"gravity-digital-red-led-light-module","url":"/products/gravity-digital-red-led-light-module","description":"A simple red LED module with a Gravity 3-pin digital interface for plug-and-play connection to Arduino and other microcontrollers via a Gravity IO Expansion Shield. Ideal for beginners learning digital output control.\n\nKey Features\n\n\nGravity Interface – 3-pin plug-and-play connection\n\nDigital Control – Simple on/off via a single digital pin\n\nActive-Low Design – LED lights when the signal pin is set LOW\n\n\nSpecifications\n\n\nType – Digital\n\nColour – Red\n\nPin Definition – (1) Signal, (2) VCC, (3) GND\n\n\nPackage Contents\n\n1× Gravity Digital Red LED Module\n1× Digital Sensor Cable\n\n\n\nNote: This LED is wired active-low — it lights up when the signal pin is set to LOW. This prevents the LED from drawing excessive current from the microcontroller I/O pin. To use it with active-high logic, swap the signal wire (green) with the GND wire (black), and connect the VCC wire (red) to the signal pin's original position.\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":9546,"title":"Default Title","sku":"DF-DFR0021-R","price":2.87,"on_sale":false,"in_stock":true,"available_quantity":629,"option1":"Default Title"}]}