{"title":"RGB backlight positive LCD 20x4 + extras [black on RGB]","handle":"rgb-backlight-positive-lcd-20x4-extras-black-on-rgb","url":"/products/rgb-backlight-positive-lcd-20x4-extras-black-on-rgb","description":"This 20×4 character LCD features black text on a full-colour RGB backlight that you can set to any colour — red, green, blue, purple, teal, white, and everything in between. It's the most daylight-readable character LCD available and looks strikingly good at any colour or brightness level.\n\nA drop-in upgrade for existing 20×4 LCD projects — the standard pinout works as-is (appearing black-on-red), with two additional pins (17 and 18) for green and blue LED control. On-board resistors allow direct 5 V logic drive at approximately 40 mA per LED (two LEDs at 20 mA each).\n\nKey Features\n\n\nFull RGB Backlight – Mix any background colour by driving red, green, and blue LEDs independently\n\n20×4 Character Display – 80 characters across 4 rows\n\nExcellent Daylight Readability – Black characters on bright, positive-mode background\n\nDrop-In Compatible – Standard HD44780 pinout works with existing LCD projects\n\nOn-Board Resistors – Drive directly with 5 V logic, no external resistors needed\n\n\nSpecifications\n\n\nDisplay – 20×4 characters, black on RGB\n\nBacklight – RGB LED (pins 16, 17, 18)\n\nLED Current – ~40 mA per colour (2× 20 mA LEDs per colour)\n\nLogic Level – 5 V\n\nInterface – Parallel (HD44780 compatible)\n\n\nIdeal For\n\nArduino and CircuitPython display projects\nUpgrading existing character LCD setups with colour\nStatus displays with colour-coded alerts\nInteractive projects with dynamic backlight effects\n\n\nPackage Contents\n\n1× 20×4 RGB Backlight LCD\n1× 10 kΩ contrast potentiometer\n1× Header strip\n\n\nResources\n\nCharacter LCD Tutorial (Arduino & CircuitPython)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":12549,"title":"Default Title","sku":"AF-499","price":55.48,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":22,"option1":"Default Title"}]}