BornHack 2025 Circle Badge
A circular ESP32-C3 badge focused on LoRa, Meshtastic, WiFi, BLE, RGB LEDs, external antenna use, and expansion connectors.
BornHack
BornHack 2025
A circular ESP32-C3 LoRa/Meshtastic badge with external antenna, RGB LEDs, Qwiic/STEMMA QT, and SAO expansion footprints.
Funen · Denmark · 2025
Lifecycle
Add-ons & Upgrades
BornHack 2025 Circle Badge
current
External LoRa antenna and case
LoRa depends on the supplied external antenna, and the repository includes an OpenSCAD case intended to hold battery, antenna, and LEDs.
Operational history
Issues & Camp Impact
The PCB antenna shape is not connected because the selected LoRa module variant uses an external u.FL/IPEX connector.
Users need the supplied external antenna and should avoid sticking it directly to the copper-heavy PCB because that can reduce RF performance.
Resources
Initial Meshtastic firmware
firmware · Initial Meshtastic firmware linked from the 2025 badge README.
BornHack badge2025
source · Circle LoRa badge README covering ESP32-C3, Meshtastic, external antenna, RGB LEDs, Qwiic/STEMMA QT, SAO, case, and licensing.
Flasher tool
tool · Flasher tool linked from the BornHack 2025 badge README.