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JSConf México

JSConf México 2026

The October 29-30, 2026 community-driven JavaScript conference at Jardín Americana in Guadalajara, with keynotes, talks, and hands-on workshops in four rooms. Its official agenda lists Electronic Cats' Controla hardware con JavaScript workshop on October 29, which requires the separately sold JSConf MX badge. The conference was under way on October 30, 2026, and the edition is not yet marked completed.

Jardín Americana, Av. Ignacio L Vallarta 1305, Col. Americana, Guadalajara, Jalisco · Mexico · 2026

JSConf México 2026 Meshtastic Badge

The JSConf MX badge for the October 29-30, 2026 JavaScript conference at Jardín Americana in Guadalajara, designed by Electronic Cats. The official agenda says it is required for the Controla hardware con JavaScript workshop and is sold on the day by the instructors for USD 50; the Electronic Cats store lists it with workshop access and showed it out of stock on October 30. It is a USB-powered ESP32-S3 board with an LLCC68 915 MHz LoRa module, a 428x142 colour display, and four buttons, running a Meshtastic fork with mesh messaging, a name tag, and an axolotl collecting game.

Lifecycle

Add-ons & Upgrades

JSConf México 2026 Meshtastic Badge maker-documented firmware feature

badge-to-badge game

Axolotl proximity collection game

Every badge carries one of 11 axolotls, fixed by its MAC address with common, rare, and legendary shares of 77, 20, and 3 percent. Badges broadcast unrelayed hellos every 40 to 70 seconds, and hearing the same badge twice at -80 dBm or stronger within 30 seconds unlocks its axolotl on both sides. The collection survives power loss, and all 11 earn the Maestro Ajolotero title.

Compatibility: JSConf México 2026 badges running the badge_jscon2026 firmware.

JSConf México 2026 Meshtastic Badge maker-documented workshop tooling

browser control interface

Web Serial control and Badge Studio

Over USB CDC, a Web Serial page can show text, press buttons, rename the badge, upload a 428x142 image to the Canvas page, take screenshots, and stream the screen. Electronic Cats' Badge Studio and the workshop examples use this path.

Compatibility: Desktop Chrome or Edge, or Firefox 157 or later; not phones or Safari, per the official workshop note.

JSConf México 2026 Meshtastic Badge officially scheduled October 29, 2026

hands-on workshop

Controla hardware con JavaScript workshop

A two-and-a-half-hour Spanish-language workshop by Andrés Sabas of Electronic Cats in which attendees program the badge from the browser with JavaScript; the prep note asks for basic LLM experience and suggests AI coding tools. The badge is the entry requirement and is sold at the workshop.

Compatibility: Workshop participants who bought the badge; not a general conference handout.

JSConf México 2026 Meshtastic Badge maker-documented firmware feature

stock firmware feature

Meshtastic messaging and name tag

The badge is a normal Meshtastic node for the phone apps over Bluetooth LE, sends text messages to other badges over LoRa without phone network or Wi-Fi, and shows the owner's name in large letters on its name-tag page.

Compatibility: Other badges and Meshtastic nodes on region US with the SHORT_FAST preset.

Operational history

Issues & Camp Impact

JSConf México 2026 Meshtastic Badge note

hardware licence and event status · maker repositories and official site · open

The hardware repository publishes KiCad sources but states no licence, while the firmware is GPL-3.0 and the JSConf artwork is CC BY-NC-SA 4.0. The official workshop note still calls both repositories private, although they were public on October 30. The conference was on its second day, with no wrap-up yet.

Reuse of the board design is not cleared, and the edition will only be marked completed once a post-event source confirms it.

JSConf México 2026 Meshtastic Badge note

isolated SHORT_FAST mesh · maker documentation · documented limitation

The firmware fixes region US and the SHORT_FAST preset, so badges talk to each other but not to Meshtastic nodes left on the stock LONG_FAST preset. The README notes that the -80 dBm unlock threshold was only measured at about 4 m, where signals were -39 to -53 dBm, and that the game's unit test runs on a host compile outside the repository test harness.

Owners who want to join a public mesh after the event have to change the radio settings themselves, and the proximity rule has not been characterised at the edge of its threshold.

JSConf México 2026 Meshtastic Badge note

missing rights-cleared image · local project policy · needs licensed original replacement

No JSConf México 2026 badge image is published. The hardware repository's front and back photos come with no licence, and the firmware repository's screen images are mockups built partly from JSConf artwork licensed CC BY-NC-SA 4.0.

The record stays image-free until a badge photo or render with a clear reuse licence, attribution, and processing record is available.

JSConf México 2026 Meshtastic Badge note

paid workshop badge, not attendee-wide · official agenda and maker store · documented allocation boundary

The official agenda says the badge is needed for the hardware workshop and is bought on the day from the instructors for USD 50, and the maker's store sells it with workshop access. Neither source says conference tickets include it, and no unit count or sales figure is published.

The record treats the badge as an optional workshop purchase and does not present it as the conference's admission credential.

Resources

Badge JSConf MX 2026 v0.2.0 firmware release · October 29, 2026 firmware release with a factory image, based on Meshtastic 2.8.0, adding the USB Canvas page, screenshots, flash-streamed sprites, and USB console fixes. ElectronicCats/jscon-2026-firmware firmware source · GPL-3.0 Meshtastic fork with the badge_jscon2026 target: mesh messaging, name tag, axolotl game, JSConf artwork, flashing and build instructions, pin and source map, and hardware test status. badge_JSCON_2026 v1.0 hardware release · July 6, 2026 release with the board and accessory BOMs as CSV files. ElectronicCats/badge_JSCON_2026 hardware source · Electronic Cats' KiCad 10 project for the badge, revision v1.0, with schematic, PCB, custom footprints, a component table, and KiBot fabrication workflows. The README credits the hardware design to Lizeth Gallegos Martínez and states no licence. Badge de JSConf México maker store listing · Electronic Cats store listing at USD 50 for the board alone, with access to the workshop and open-source materials; it showed the badge out of stock on October 30, 2026. JSConf México 2026 agenda official agenda and workshop prep · Official agenda listing Controla hardware con JavaScript (W-01) on October 29, 11:00-13:30 in Taller B. Its prep note says the workshop needs the JSConf MX badge, sold on the day by the instructors for USD 50, plus a USB-C cable, a laptop, and a Web Serial browser, and links both Electronic Cats repositories. JSConf México 2026 official site official event page · Official site for the October 29-30, 2026 community-driven JavaScript conference at Jardín Americana, Guadalajara, with the speaker line-up, including Andrés Sabas of Electronic Cats and his W-01 workshop. ElectronicCats/presentacion-jscon-2026 workshop materials · Electronic Cats' 41-slide workshop deck on LoRa and Meshtastic, Badge Studio for uploading images and controlling the badge over USB, and a Claude Code skill for writing badge-control web pages.

Sources

Electronic Cats: Badge de JSConf México Retrieved 2026-10-30 · Maker store listing for the price, the bundle of board and workshop access, and the out-of-stock state on October 30, 2026. It does not give a unit count. Electronic Cats / GitHub: Badge JSCONF 2026 Retrieved 2026-10-30 · Primary maker source for the hardware: ESP32-S3-WROOM-1-N8, VGdd79S915N0S1 915 MHz LoRa module with SMA connector, 428x142 colour display on a 10-pin FFC, four user buttons and a power switch, USB-C power with fuse and 3.3 V regulator, no battery or GPS, and a two-layer KiCad 10 PCB. It names Lizeth Gallegos Martínez as hardware designer and Andrés Sabas and Heikki Isa Perea Esparza as workshop presenters. No licence file or statement is present. Electronic Cats / GitHub: JSConf Mexico 2026 badge firmware Retrieved 2026-10-30 · Primary maker source for the firmware behaviour: Meshtastic fork, US region and SHORT_FAST preset, name tag, 11-axolotl game with MAC-based starter and -80 dBm double-hello unlock rule, page list, flashing with esptool 5, LLCC68 radio, NV3007 display, and the hardware test status. Its screen images are labelled as computer-drawn mockups, not photos. JSConf México: JSConf México 2026 agenda Retrieved 2026-10-30 · Primary official source for the October 29-30 dates and Jardín Americana venue, the W-01 workshop slot and instructor, the JSConf MX badge as a workshop requirement, its day-of sale by the instructors at USD 50, and the two linked Electronic Cats repositories. It does not say the badge is issued to every attendee.