NodeConf EU
The 2018 NodeConf EU edition in Kilkenny, Ireland, whose attendee badge was a NearForm Pixl.js/Espruino hackable JavaScript badge with public code and hardware design files.
Kilkenny · Ireland · 2018
An Apache-2.0 archived NearForm badge for NodeConf EU 2018 in Kilkenny, based on Pixl.js and Espruino with LCD, Bluetooth programming, RGB lighting, vibration motors, light, accelerometer and magnetometer APIs, extension headers, apps, patterns, and attendee name tooling.
Lifecycle
Attendees could append JavaScript apps to `Badge.apps`, add LED patterns, upload code over BLE, and persist extensions in `.boot0` through `.boot3` storage files.
The README links name-changing tools and explains how badge owners could make the badge connectable via menu item or button-held boot modes.
J1/J2 exposed GPIO and analog pins, while J3 provided an ESP8266 ESP-01 serial/Wi-Fi header with a documented mirroring caveat and wiring workaround.
The README documents light sensing via LED2, left/right vibration motors, quiet sound generation through vibration motor PWM, accelerometer readings, and magnetometer readings.
The README says the badge is based on Pixl.js and uses Espruino IDE, CLI, and Pixl.js firmware-update workflows.
The badge exposed top LEDs, bottom LEDs, and a four-zone LCD backlight through pattern callbacks and `NC.ledTop`, `NC.ledBottom`, and `NC.backlight` APIs.
Operational history
The record preserves practical attendee-facing limitations instead of presenting the badge as frictionless hardware.
Hardware and software claims stay limited to the README, schematic directory, and JavaScript source tree.
The Irish 2018 record remains source-backed and image-free rather than copying badge-site or repository imagery without full provenance.
Primary claims come from the repository and README rather than relying on the expired-certificate homepage for evidence or images.