This repository is still "under constructionion". It will finally provide all hardware design files (KiCad) for the ScienceEventBadge. The PCB design was originally created in 2025 for the "Jugend-forscht" state competition in Saxony-Anhalt in 2026.

• Main controller: ESP32-C6 (WiFi, BLE, ZigBee, Thread, Matter)
• Co-processor: ATTNY1617
• On-board sensors:
  • AHT20 - temperature and humidity
  • BMP388 - barametric pressure
  • SGP-40 - VOC-index (air quality)
  • Light sensor (LDR)
  • LIS2DH12 - Accellerometer
• Data logging features:
  • RV-3028-C7 - RTC module with backup battery
  • 4MB on-board flash memory (part of the 8MB ESP32 flash)
  • µSD-card slot
• Power supply
  • low power buck-boost converter
  • CR123A 3V Lithium battery,
  • Battery connector (1.6-5.5V)
  • or USB-C