How do you calculate ble throughput?
For Android devices, the minimum connection interval is 7.5 milliseconds. BLE Data Throughput for a Single Direction with iPhone 6 = (1000 mSecs) * 20 * ( 4 ) / (30 mSecs) = 2,667.66 Bytes per second.
How is Bluetooth speed measured?
The Bluetooth version and PHY determine the raw data transfer rate. For example, if we are using Bluetooth version 4.2 and the LE 1M PHY, then the transfer rate is at 1 Mbps. If on the other hand, we are using the Bluetooth 5 LE Coded PHY with S=8, then the data rate goes down to 125 kbps.
How many bytes can a slave send and receive?
However, the slave’s LL_LENGTH_RSP indicates it supports receiving a full 251-byte Data Channel Payload, but can only transmit Data Channel Payloads of 127 bytes. Lastly, using those values, both master and slave determine how many bytes of Data Channel Payload they can send and receive.
What is the max throughput for a BLE connection?
What exactly is the max throughput for a BLE connection?” Well… the maximum achievable throughput values will vary depending upon many different factors: hardware/chipset, PHY layer used, stack version, OS version, direction of data, how busy the master or slave devices are with other connections and tasks, wireless environment, etc.
How to maximize BLE throughput on iOS and Android?
In order to achieve higher throughput, the method that allows for more than one packet in a connection event needs to be selected. Use Write Command instead of Write Request or Blob Write when sending data from GATT Client to GATT Server, Use Notification instead of Indication when sending data from GATT Server to GATT Client.
How many devices are needed for a BLE connection?
A BLE connection consists of only two devices, where one is called central (like master) and the other called peripheral (like slave). Each side communicates with the other on a given period called Connection Interval (minimum of 7.5 milliseconds and increases in steps of 1.25 milliseconds).