Posts Tagged ‘characteristic’
Bluetooth GATT: How to Design Custom Services & Characteristics [MIDI device use case]
You’re probably aware that adding Bluetooth Low Energy (BLE) to your device is one of the best ways to achieve a great user experience for your IoT device. Why is that, you may ask? Well, because adding BLE allows your device to be connectable from a smartphone app. And we can all agree that smartphone…
Read MoreWhat is the maximum size of data that can be encapsulated in a characteristic?
The answer: 512 bytes. But to understand where that came from, let’s first look at what a characteristic really is. Attributes are the generic term describing the smallest element in the Generic Attribute Profile (GATT). So each of Services, Characteristics, and Descriptors is actually an attribute, and according to the Bluetooth 4.2 spec (Volume 3,…
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