cat ./projects/impact-band-2026
IMPACT Band
BLE impact-detection wearable built on the Seeed Studio XIAO nRF52840 Sense
- Dates
- May 2026 - May 2026
- Primary domain
- Hardware & Embedded Systems
- Additional domain
- Software Engineering
- Project kind
- application
- Roles
- Embedded Systems Developer
- Location
- Brookings, SD
- Work setting
- on-site
- Team
- solo
- Team size
- 1
Highlights
- Sampled the onboard LSM6DS3TR-C 6-axis IMU at 104 Hz and aggregated acceleration and detected impacts into 5-second window summaries
- Implemented Nordic UART Service transport for newline-framed JSON plus a Python/Bleak receiver for packet reassembly and JSONL logging
- Built 17 native firmware tests covering packet construction, window aggregation, impact detection and long-packet BLE transport behavior
- Validated physical taps up to 8.989g dynamic acceleration and recovered an intermittently failing battery-prepared board using a replacement control board