Read & Write Characteristics
Exchange values through BLE attributes.
Where the Data Lives
A service is a folder, but the real values live inside characteristics. These are the slots a phone actually reads and writes. 📦
Characteristics Have UUIDs Too
Like services, every characteristic carries its own UUID. The phone uses it to target one exact value, such as temperature.
All lessons in this course
- Classic Bluetooth vs BLE
- Advertise a BLE Service
- Read & Write Characteristics
- Control an LED from a Phone App