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Eight-slot MiniBadge expansion board

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SAINTCON 2024 Klippy-Net Wrist Badge designer README and board files

lanyard expansion board

An eight-slot holder with the 20-pin MiniBadge extension connector hangs on a lanyard like earlier badges and takes power from the badge's USB-C port. It has no I2C link to the badge, and the README warns that many lit MiniBadges will drain the battery.

Badge
SAINTCON 2024 Klippy-Net Wrist Badge
Type
lanyard expansion board
Status
designer README and board files
Compatibility
SAINTCON 2024 Klippy-Net Wrist Badge over USB-C
Source
https://github.com/compukidmike/Saintcon2024/tree/main/Hardware/MinibadgeHolder8

Badge context

Related Resources

designer hardware and firmware repository

compukidmike/Saintcon2024

Repository created August 21, 2024, with the pre-conference README on wrist mounting, klip-ons, and MiniBadges, the board files added November 12, 2024, and the firmware added February 7, 2025. It states no licence.

Badge: SAINTCON 2024 Klippy-Net Wrist Badge

Source trail

Evidence Sources

David Vasquez (PugTechnology) / GitHub · retrieved 2026-11-04

SAINTCON Badge Museum

Secondary community source that names the 2024 badge the Tower Battle wrist badge by compukidmike and runs its original firmware with a stand-in tower server.

Badge: SAINTCON 2024 Klippy-Net Wrist Badge

compukidmike / GitHub · retrieved 2026-11-04

Saintcon 2024

Primary designer source for the wrist mount with a velcro sweatband and a lanyard option, the 3V3 and GND screws that power klip-ons, the off-centre screen opening, the two-slot I2C MiniBadge klip-on included with every badge, and the eight-slot USB-powered MiniBadge expansion board without I2C.

Badge: SAINTCON 2024 Klippy-Net Wrist Badge

compukidmike / GitHub · retrieved 2026-11-04

Saintcon Badge 2024 BOM

Primary designer source for the component list: ESP32-S3-WROOM-1, 2.8-inch IPS touch LCD, IR12-21C IR LED, TSOP752xx receiver, MC3419, TCA9544A, BQ24296M, PI5USB30216C, AP22816, AP7361C, TPM8837 described as driving the CLK pins, and a 1500 mAh LiPo.

Badge: SAINTCON 2024 Klippy-Net Wrist Badge

compukidmike / GitHub · retrieved 2026-11-04

Saintcon2024 badge firmware

Primary source, published February 7, 2025 in a commit by David Warkentin, for the ESP32-S3 target with 16 MB flash, the i80 LCD and GT911 touch configuration, version 2.6.9, the 11-tower tracker, NEC-style IR framing, the sc24.redactd.net API base, the two-hour OTA check, and MiniBadge scanning.

Badge: SAINTCON 2024 Klippy-Net Wrist Badge