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BLE Basics
Learn BLE fundamentals: advertising vs connections, GATT data organization, power management, and how to build battery-efficient IoT devices with Bluetooth Low Energy.
Hubble developer blog
Build with Hubble
Firmware, RF and hardware write-ups from the engineers building the Hubble Network. Code included.
Featured
How Samsara's Asset Tag Delivers Cellular-Grade Tracking with Bluetooth
Samsara's asset tag uses Bluetooth Low Energy and a massive dual-layer network to deliver GPS-comparable tracking at a fraction of the cost with no charging or
Recent posts
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Getting Started with Hubble Network
BLE was designed for tiny power budgets and short hops between two devices in the same room. Hubble's satellites pull those advertising packets out of the air from 600 km up.
How to Use BLE Coded PHY for Long-Range Communication in Noisy Environments
Learn how to enable BLE Coded PHY on Nordic nRF52840 with Zephyr to extend range up to 4x and survive 2.4 GHz interference in industrial environments.
What Is a BLE Gateway and When Does Your IoT Deployment Need One
A BLE gateway bridges short-range Bluetooth sensor data to the cloud, and choosing the right architecture determines whether your IoT deployment scales or stalls.
How to Build a Bluetooth Tracker That Sends Sensor Data Without a Gateway
Learn how to build a sub-$20 BLE sensor tracker that relays temperature, humidity, and motion data via smartphones, mesh nodes, or satellites — no gateway neede