RedWhistle
Personal-safety keychain + community-responder network · Birmingham, AL
A 42mm glass-and-aluminum keychain where the logo is the panic button.
Double-press pings trusted contacts and nearby opted-in responders with a
fixed GPS pin; hold escalates to 911; and when cell networks die, our
signed relay protocol RWP-1 passes alerts device-to-device
over LoRa. Concept to complete engineering package in 30 days, for about
$100 of burn.
- Gen 3 engineering package: DFM-ready CAD, BOM, nRF52840 + LoRa
- Firmware with automated acceptance tests + companion PWA
- RWP-1 signed mesh relay protocol — provisional patent in progress
- Product page ray-traces the actual CAD live in WebGL — no photos