# LILYGO

Published articles for LILYGO.

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## OpenTrailPaper transforms LILYGO T5 E-Paper S3 Pro devkit into a DIY e-paper bike computer

DevFeed: [OpenTrailPaper transforms LILYGO T5 E-Paper S3 Pro devkit into a DIY e-paper bike computer](<https://devfeed.tech/articles/opentrailpaper-transforms-lilygo-t5-e-paper-s3-pro-devkit-into-a-diy-e-paper-bike-computer-14029.md>)

Original publisher: [Read original article](<https://www.cnx-software.com/2026/09/05/opentrailpaper-transforms-lilygo-t5-e-paper-s3-pro-devkit-into-a-diy-e-paper-bike-computer/>)

Author: Jean-Luc Aufranc (CNXSoft)

Published: 2026-09-05T08:01:22Z

Content type: news

Language: en

Sources: [CNX Software - Embedded Systems News](<https://devfeed.tech/sources/cnx-software-embedded-systems-news.md>)

Topics: [Embedded Systems](<https://devfeed.tech/topics/embedded-systems.md>), [ESP32-S3](<https://devfeed.tech/topics/esp32-s3.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Android](<https://devfeed.tech/topics/android.md>), [iOS](<https://devfeed.tech/topics/ios.md>), [Bluetooth](<https://devfeed.tech/topics/bluetooth.md>), [ESP-IDF](<https://devfeed.tech/topics/esp-idf.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [Python](<https://devfeed.tech/topics/python.md>), [web browser](<https://devfeed.tech/topics/web-browser.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [bluetooth](<https://devfeed.tech/tags/bluetooth.md>), [browser](<https://devfeed.tech/tags/browser.md>), [core](<https://devfeed.tech/tags/core.md>), [display](<https://devfeed.tech/tags/display.md>), [diy](<https://devfeed.tech/tags/diy.md>), [e-ink](<https://devfeed.tech/tags/e-ink.md>), [e-paper](<https://devfeed.tech/tags/e-paper.md>), [epaper](<https://devfeed.tech/tags/epaper.md>), [esp-idf](<https://devfeed.tech/tags/esp-idf.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [esp32-s3](<https://devfeed.tech/tags/esp32-s3.md>), [espressif](<https://devfeed.tech/tags/espressif.md>), [firmware](<https://devfeed.tech/tags/firmware.md>), [github](<https://devfeed.tech/tags/github.md>), [gps](<https://devfeed.tech/tags/gps.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [ios](<https://devfeed.tech/tags/ios.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [lilygo](<https://devfeed.tech/tags/lilygo.md>), [lora](<https://devfeed.tech/tags/lora.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [python](<https://devfeed.tech/tags/python.md>)

### AI overview

OpenTrailPaper is an open-source DIY e-paper bike computer project for the LILYGO T5 E-Paper S3 Pro, using ESP32-S3 firmware alongside Android and iOS companion apps. It supports ride data, offline maps, GPX routes, FIT file recording, and Bluetooth sensor connections.

### Source excerpt

OpenTrailPaper is an open-source, DIY e-paper bike computer project comprised of firmware for the ESP32-S3-based T5 E-Paper S3 Pro devkit and Android and iOS companion apps for maps, routes, and settings. It shows ride data and offline maps, follows standard GPX (GPS Exchange Format) routes, records FIT (Flexible and Interoperable Data Transfer used in Garmin devices) files, and connects to Bluetooth (and soon ANT/ANT+) heart rate, power, and cadence sensors. Before looking into the project's details, let's check out the LILYGO T5 E-Paper S3 Pro specifications: ESP32-S3-WROOM-1 wireless module SoC - ESP32-S3N16R8 dual-core Tensilica LX7 microcontroller @ up to 240 MHz with 2.4 GHz 802.11n WiFi 4 and Bluetooth 5.0 LE connectivity Memory - 8MB PSRAM Storage - 16MB SPI flash PCB antenna Storage - MicroSD card slot Display - 4.7-inch e-Paper display with 960x540 resolution, 16 shades of gray, capacitive touch (GT911); ED047TC1 drive IC Wireless 2.4 GHz 802.11n [...] The post OpenTrailPaper transforms LILYGO T5 E-Paper S3 Pro devkit into a DIY e-paper bike computer appeared first on CNX Software - Embedded Systems News.