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A Bluetooth Beacon is a loudspeaker in a crowded room: it broadcasts the same packet to everyone within range, with no pairing and no authentication by default. That openness is…

A Bluetooth module's radio is only as good as the antenna bolted to it. You can buy the most sensitive SoC on the market, but if the antenna is mismatched,…

A BLE Tag is cheap until you have ten thousand of them. The moment a fleet leaves the factory, every tag must already carry a unique, trustworthy identity — otherwise…

A Bluetooth Beacon deployment that looks perfect on a floor plan often falls apart in the real building. Drywall, shelving, freezers, and human bodies all eat RF, and a 3…

Ship a Bluetooth module with unsigned firmware and you have implicitly trusted anyone who can flash it. A competitor clones your product, an attacker drops a backdoor, or a bad…

A standard BLE Tag is a coin-sized beacon you clip to keys, a laptop, a pallet, or a patient wristband so you can find it later. That same convenience is…

A standard Bluetooth Beacon just broadcasts. It wakes from a timer, pushes an advertising packet, and goes back to sleep. The model assumes a gateway or smartphone is within radio…

An engineer sent me a screenshot: his Bluetooth module pulled 9 milliamps in sleep, and the datasheet promised 1.8. He'd designed the battery around the 1.8. The chip wasn't broken.…

A buyer forwarded me a datasheet: "200 meters." He'd stuck the BLE Tag on a pallet, and it dropped off the gateway at nineteen meters past the door. The number…

A plain advertising beacon only answers one question: "where is this tag?" Add a sensor — temperature, humidity, acceleration, light — and the same hardware becomes a distributed measurement node…