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Mmastodon TechnologySoftware first seen 10 h ago, last 10 h ago, peak #4

Open-Source Firmware Adds AirPrint to Old USB-Only Canon Printer

Original: Xuan-Son Nguyen's ESP32-S3 Firmware Gives an Old USB-Only Canon Printer AirPrint and AirScan, Once You Bridge a 5V Pad S

Developer Xuan-Son Nguyen has released ESP32-S3-based firmware that adds AirPrint and AirScan support to older Canon printers limited to USB connections. A hardware tweak is required: bridging a 5V pad so the printer detects a connected cable. The project highlights how cheap microcontrollers can extend the life of aging hardware and has drawn attention in maker and open-source communities.

Why now: It offers a cheap DIY way to give legacy printers wireless AirPrint support instead of replacing them.

Xuan-Son NguyenESP32-S3CanonAirPrintAirScan

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