{"slug": "reterminal-sticky-3-97-inch-touch-epaper-display-is-supported-by-four-open-so", "title": "reTerminal Sticky 3.97-inch touch ePaper display is supported by four open-source firmware projects (so far)", "summary": "Seeed Studio's reTerminal Sticky, a 3.97-inch magnetic touch ePaper display powered by an ESP32-S3 microcontroller, is supported by four open-source firmware projects, according to CNX Software. The device features an 800x480 resolution display, 8MB PSRAM, 32MB Flash, a microSD card slot, and an AI voice button for voice-to-note functionality.", "body_md": "Seeed Studio’s reTerminal Sticky is a 3.97-inch “AI-powered” magnetic touch ePaper display powered by an ESP32-S3 microcontroller, which serves as a sticky-note alternative, an e-reader, a live dashboard, or a home automation controller. The 800 x 480 resolution display comes with 8MB PSRAM, 32MB Flash, a microSD card slot, and next/previous page buttons. It’s “AI-powered” through a microphone and an AI Voice button leveraging the ESP32-S3 Edge AI capabilities for a voice-to-note feature. It also features a temperature and humidity sensor and a 3-axis accelerometer, as well as a built-in magnet and a magnetic ring for easy mounting. reTerminal Sticky specifications: SoC – Espressif ESP32-S3R8 CPU – Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration Memory – 8MB PSRAM Wireless – 2.4 GHz WiFi 4 and Bluetooth 5.0 LE Storage 32 MB flash MicroSD card slot (SanDisk recommended) Display 3.97-inch monochrome (B&W) ePaper 4-level [...]\n\nThe post [reTerminal Sticky 3.97-inch touch ePaper display is supported by four open-source firmware projects (so far)](https://www.cnx-software.com/2026/07/31/reterminal-sticky-3-97-inch-magnetic-touch-epaper-display-is-supported-by-four-open-source-firmware-projects/) appeared first on [CNX Software - Embedded Systems News](https://www.cnx-software.com).", "url": "https://wpnews.pro/news/reterminal-sticky-3-97-inch-touch-epaper-display-is-supported-by-four-open-so", "canonical_source": "https://www.cnx-software.com/2026/07/31/reterminal-sticky-3-97-inch-magnetic-touch-epaper-display-is-supported-by-four-open-source-firmware-projects/", "published_at": "2026-07-31 08:01:32+00:00", "updated_at": "2026-08-05 11:52:41.752921+00:00", "lang": "en", "topics": ["ai-products", "ai-infrastructure"], "entities": ["Seeed Studio", "reTerminal Sticky", "Espressif ESP32-S3R8", "CNX Software"], "alternates": {"html": "https://wpnews.pro/news/reterminal-sticky-3-97-inch-touch-epaper-display-is-supported-by-four-open-so", "markdown": "https://wpnews.pro/news/reterminal-sticky-3-97-inch-touch-epaper-display-is-supported-by-four-open-so.md", "text": "https://wpnews.pro/news/reterminal-sticky-3-97-inch-touch-epaper-display-is-supported-by-four-open-so.txt", "jsonld": "https://wpnews.pro/news/reterminal-sticky-3-97-inch-touch-epaper-display-is-supported-by-four-open-so.jsonld"}}