Modifications

Assurez-vous d'avoir activé le service de localisation sur votre Android 6.0 lorsque vous utilisez Bluefruit LE Connect ou autres applications Bluetooth Low Energy avec le module Bluefruit LE d'Adafruit.

Assurez-vous d'avoir activé le service de localisation sur votre Android 6.0 lorsque vous utilisez Bluefruit LE Connect ou autres applications Bluetooth Low Energy avec le module Bluefruit LE d'Adafruit.

==  What is the theoretical speed limit for BLE? ==

==  Quel est la vitesse théorique limite du BLE? ==

This depends on a variety of factors, and is determined by the capabilities of the central device (the mobile phone, etc.) as much as the peripheral.

Cela dépends de plusieurs facteurs, et déterminé plus les capacités du périphérique centrale (votre smartphone, etc) que par le périphérique.

Taking the HW limits on the nR51822 into account (max 6 packets per connection interval, and a minimum connection interval of 7.5ms) you end up with the following theoretical limits on various mobile operating systems:

En prenant en compte la limitation matérielle du nR51822 (6 paquets max par intervalle de connexion et un in intervalle de connexion minimum de 7.5ms), nous atteignons les limites théoriques suivantes sur différents systèmes d'exploitation mobile :

* '''iPhone 5/6 + IOS 8.0/8.1'''<br />6 packets * 20 bytes * 1/0.030 s = 4 kB/s = 32 kbps

* '''iPhone 5/6 + IOS 8.0/8.1'''<br />6 paquets * 20 octets * 1/0.030 s = 4 kB/s = 32 kbps

* '''iPhone 5/6 + IOS 8.2/8.3'''<br />3 packets * 20 bytes * 1/0.030 s = 2 kB/s = 16 kbps

* '''iPhone 5/6 + IOS 8.2/8.3'''<br />3 paquets * 20 octets * 1/0.030 s = 2 kB/s = 16 kbps

* '''iPhone 5/6 + IOS 8.x with nRF8001'''<br />1 packet * 20 bytes * 1/0.030 s = 0.67 kB/s = 5.3 kbps

* '''iPhone 5/6 + IOS 8.x with nRF8001'''<br />1 paquets * 20 octets * 1/0.030 s = 0.67 kB/s = 5.3 kbps

* '''Nexus 4'''<br />4 packets * 20 bytes * 1/0.0075 s = 10.6 kB/s = 84 kbps

* '''Nexus 4'''<br />4 paquets * 20 octets * 1/0.0075 s = 10.6 kB/s = 84 kbps

* '''Nordic Master Emulator Firmware (MEFW) with nRF51822 0.9.0'''<br />1 packet * 20 bytes * 1/0.0075 = 2.67 kB/s = 21.33 kbps

* '''Nordic Master Emulator Firmware (MEFW) with nRF51822 0.9.0'''<br />1 paquets * 20 octets * 1/0.0075 = 2.67 kB/s = 21.33 kbps

* ''' Nordic Master Emulator Firmware (MEFW) with nRF51822 0.11.0'''<br />6 packets * 20 bytes * 1/0.0075 = 16 kB/s = 128 kbps

* ''' Nordic Master Emulator Firmware (MEFW) with nRF51822 0.11.0'''<br />6 paquets * 20 octets * 1/0.0075 = 16 kB/s = 128 kbps

There are also some limits imposed by the Bluefruit LE firmware, but we are actively working to significantly improve the throughput in the upcoming 0.7.0 release, which will be available Q2 2016.  The above figures are useful as a theoretical maximum to decide if BLE is appropriate for you project or not.

Il y a également une limite imposée par le firmware du Bluefruit LE (Adafruit travaille activement pour améliorer le débit dans la release 0.7.0).

'''UPDATE:''' For more specific details on the limitations of various '''Android''' versions and phones, see [https://devzone.nordicsemi.com/blogs/1046/what-to-keep-in-mind-when-developing-your-ble-andr/ this helpful post from Nordic Semiconductors].

 

'''Mise-à-jour:''' Voyez [https://devzone.nordicsemi.com/blogs/1046/what-to-keep-in-mind-when-developing-your-ble-andr/ ce billet très utile de Nordic Semiconductors] pour des détails spécifiques concernant les limitations concernant les différentes versions d' '''Android''' et téléphones.

== Can my Bluefruit board detect other Bluefruit boards or Central devices? ==

== Can my Bluefruit board detect other Bluefruit boards or Central devices? ==