IS31FL3731 16x9 Charlieplexed PWM LED Driver 144 individually dimmable PWM LEDs over I2C by lady ada published March 09, 2016, last edited January 22, 2025 last major update December 22, 2022 posted in Adafruit Products LEDs/ LED Matrices Arduino Compatibles Breakout Boards STEMMA Save New Favorite × Please sign in to include this guide in your list of favorites. You will be redirected back to this guide once you sign in, and can then save this guide as one of your favorites. Link Note Download Overview Pinouts Assembly Arduino Wiring & Test Library Reference Python & CircuitPython Python Examples Python Docs Downloads Single page Feedback? Corrections? Text View Primary Products Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731 Out of Stock Featured Products view all JST-SH 4-pin STEMMA QT / Qwiic Cables in Various Lengths Add from Store Your browser does not support the video tag. LED Charlieplexed Matrix - 9x16 LEDs - Red Out of Stock Your browser does not support the video tag. LED Charlieplexed Matrix - 9x16 LEDs - Yellow $6.95 Add to Cart Your browser does not support the video tag. LED Charlieplexed Matrix - 9x16 LEDs - Green No Longer Stocked Your browser does not support the video tag. LED Charlieplexed Matrix - 9x16 LEDs - Blue $6.95 Add to Cart LED Charlieplexed Matrix - 9x16 LEDs - Cool White Out of Stock Your browser does not support the video tag. LED Charlieplexed Matrix - 9x16 LEDs - Warm White Out of Stock 61 Intermediate Product guide Python Docs Page last edited August 11, 2018 Text editor powered by tinymce. Python Examples Downloads