{"title":"Adafruit PC Joystick to seesaw I2C Adapter - STEMMA QT / Qwiic","handle":"adafruit-pc-joystick-to-seesaw-i2c-adapter-stemma-qt-qwiic","url":"/products/adafruit-pc-joystick-to-seesaw-i2c-adapter-stemma-qt-qwiic","description":"Bring your classic PC joystick back to life. This adapter board takes any legacy DE-15 game port joystick and converts its analogue X/Y axes and two buttons to I2C via an onboard ATtiny816 running the Adafruit seesaw firmware. No analogue inputs needed on your microcontroller — just plug in a STEMMA QT cable and start reading.\n\nWith two STEMMA QT / Qwiic ports for daisy-chaining and an onboard 5 V power generator (since classic joysticks expect that voltage), this adapter makes retro controller integration completely non-destructive — no cable cutting required.\n\nKey Features\n\n\nDE-15 Game Port Socket – Plug in any classic PC joystick directly\n\nSeesaw I2C Interface – ATtiny816 converts analogue joystick axes and buttons to I2C data\n\nSTEMMA QT / Qwiic Connectors – Two ports for solderless I2C connection and daisy-chaining\n\nOnboard 5 V Generator – Powers the joystick at its expected voltage from a 3.3 V I2C bus\n\nNo Analogue Pins Required – Read joystick X, Y, and two buttons entirely over I2C\n\nBreadboard Compatible – Header strip included for optional breadboard use\n\n\nReads\n\nJoystick X axis (analogue)\nJoystick Y axis (analogue)\nButton 1 (digital)\nButton 2 (digital)\n\n\nIdeal For\n\nRetro gaming projects with classic PC joysticks\nAdding analogue joystick input to I2C-only boards\nInteractive exhibits using vintage controllers\nCircuitPython and Arduino game projects\n\n\nPackage Contents\n\n1× Adafruit PC Joystick to Seesaw I2C Adapter, fully assembled and tested\n1× Header strip for optional breadboard mounting\n\n\n\nNote: STEMMA QT cable and joystick not included. Some soldering required if using the header for breadboard mounting.\n\n\nResources\n\n\nATtiny817 Seesaw Guide – Seesaw library and I2C interface documentation\n\nWhat is STEMMA QT? – Introduction to the STEMMA QT connector system\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":1496,"title":"Default Title","sku":"AF-5753","price":11.6,"on_sale":false,"in_stock":true,"available_quantity":47,"option1":"Default Title"}]}