This is very useful when tracking multiple values. When we are connecting to the device, this service will then appear as “temperature”. For example, if we are recording temperature, we want to label that characteristic as temperature, and to do that, we have to find the UUID, which in this case is “2A6E”. For this, we use UUIDs, who basically give a name to the characteristics. When we read data from a service, it is important to know what type of data we are reading. For example, the temperature or battery level are both characteristics, which record data and update continuously. These services can then be subscribed to central Bluetooth® devices.Ĭharacteristics are components of the service we mentioned above. Let’s say the device also records battery level and energy consumption, we can set up a service that is called “Energy information”. For example, if we have a device that measures wind speed, temperature and humidity, we can set up a service that is called “Weather Data”. Arduino MKR WiFi 1010 ( link to store).Ī service can be made up of different data measurements.

This tutorial is a great starting point for any maker interested in creating their own Bluetooth® projects.

Peripheral devices continuously post data for other devices to read, and it is precisely what we will be focusing on today. A central Bluetooth® device is designed to read data from peripheral devices, while the peripheral devices are designed to do the opposite. There are two different types of Bluetooth® devices: central or peripheral.

Bluetooth® Low Energy separates itself from what is now known as “Bluetooth® Classic” by being optimized to use low power with low data rates.

Wifi vs bluetooth arduino