Tracking Heart Health with Wearable IoT Sensors
Tracking heart health with wearable IoT sensors has moved from a niche research exercise to something a consumer smartwatch does before breakfast. A…
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Secure BLE OTA Firmware Updates on nRF5340: Architecture Notes
Firmware updates are one of the places where an embedded prototype either becomes maintainable or becomes expensive to support. The hard part is not…
I reverse-engineered my motorcycle's Bluetooth protocol to put Google Maps on the dashboard
My motorcycle has a Bluetooth instrument cluster. It pairs with the manufacturer's phone app and shows turn-by-turn navigation right on the dash, wh…
Bluetooth is named after a Viking king - and the story is a lesson in interoperability
Pick up almost any connected product — a fitness band, a smart lock, a set of wireless earbuds, an industrial sensor reporting to a phone — and some…