Bluefruit-LE-Shield-Configuration

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Il y a plusieurs produits sous le nom Bluefruit.

Nous allons présenter ces produits et leur type d'interface dans la liste ci-dessous.

Toutes les images ci-dessous sont créditées à Adafruit Industries - All the images here under are credited to Adafruit Industries.

	Si vous utilisez un Shield Bluefruit LE alors vous disposer d'un module NRF51822 connecté en SPI. Vous pouvez l'utiliser avec un Atmega328 (Arduino UNO ou compatible), ATmega32u4 (Arduino Leonardo, compatible) ou ATSAMD21 (Arduino Zero, compatible). Et éventuellement d'autres plateformes. Your pinouts are Hardware SPI, CS = 8, IRQ = 7, RST = 4
	Bluefruit Micro ou Feather 32u4 Bluefruit Si vous disposez d'un Bluefruit Micro ou Feather 32u4 Bluefruit LE alors vous disposez d'un ATmega32u4 avec un bus SPI matériel, CS = 8, IRQ = 7, RST = 4
	Feather M0 Bluefruit LE Si vous disposez d'un Feather M0 Bluefruit LE alors vous avez un microcontrôleur ATSAMD21 avec un bus SPI matériel, CS = 8, IRQ = 7, RST = 4
	Bluefruit LE SPI Friend Si vous disposez d'un module Bluefruit seul alors vous avez un peu plus de flexibilité avec vos raccordements. Adafruit recommande l'utilisation du bus SPI matériel, CS = 8, IRQ = 7, RST = 4 Vous pouvez utiliser ce module avec n'importe quel microcontrôleur disposant de 5 ou 6 broches (attention que dans ce cas, il vous faudra créer votre propre bibliothèque).
	Bluefruit LE UART Friend -ou- Flora BLE Si vous disposez d'un module Bluefruit LE UART vous avez également quelques flexibilités pour faire vis raccordements. Adafruit recommande l'utilisation d'un UART matériel si cela est possible. Si vous ne disposez pas d'un port UART matériel alors préférable d'utiliser le broche de contrôle de flux CTS. Ce module propose également une broche MODE. Vous pouvez utiliser ce module avec n'importe quel microcontrôleur avec seulement 3 broches -mais le mieux reste encore d'utiliser un bus série/UART matériel! Attention: sur une plateforme NON Arduino, il sera nécessaire de créer votre propre bibliothèque.

Configurer les broches utilisées

You'll want to check the Bluefruit Config to set up the pins you'll be using for UART or SPI

Each example sketch has a secondary tab with configuration details. You'll want to edit and save the sketch to your own documents folder once set up.

Crédit: AdaFruit Industries www.adafruit.com

Paramètres généraux

You can set up how much RAM to set aside for a communication buffer and whether you want to have full debug output. Debug output is 'noisy' on the serial console but is handy since you can see all communication between the micro and the BLE

// ----------------------------------------------------------------------------------------------
// These settings are used in both SW UART, HW UART and SPI mode
// ----------------------------------------------------------------------------------------------
#define BUFSIZE                        128   // Size of the read buffer for incoming data
#define VERBOSE_MODE                   true  // If set to 'true' enables debug output

UART logiciel

If you are using Software UART, you can set up which pins are going to be used for RX, TX, and CTS flow control. Some microcontrollers are limited on which pins can be used! Check the SoftwareSerial library documentation for more details

// SOFTWARE UART SETTINGS
#define BLUEFRUIT_SWUART_RXD_PIN       9    // Required for software serial!
#define BLUEFRUIT_SWUART_TXD_PIN       10   // Required for software serial!
#define BLUEFRUIT_UART_CTS_PIN         11   // Required for software serial!
#define BLUEFRUIT_UART_RTS_PIN         -1   // Optional, set to -1 if unused

UART Matériel

If you have Hardware Serial, there's a 'name' for it, usually Serial1 - you can set that up here:

// HARDWARE UART SETTINGS
#ifdef Serial1    // this makes it not complain on compilation if there's no Serial1
  #define BLUEFRUIT_HWSERIAL_NAME      Serial1
#endif

La broche MODE

For both hardware and software serial, you will likely want to define the MODE pin. There's a few sketches that dont use it, instead depending on commands to set/unset the mode. Its best to use the MODE pin if you have a GPIO to spare!

#define BLUEFRUIT_UART_MODE_PIN        12    // Set to -1 if unused

Broches SPI

For both Hardware and Software SPI, you'll want to set the CS (chip select) line, IRQ (interrupt request) line and if you have a pin to spare, RST (Reset)

// SHARED SPI SETTINGS
#define BLUEFRUIT_SPI_CS               8
#define BLUEFRUIT_SPI_IRQ              7
#define BLUEFRUIT_SPI_RST              4    // Optional but recommended, set to -1 if unused

Broches SPI logiciel

If you don't have a hardware SPI port available, you can use any three pins...its a tad slower but very flexible

// SOFTWARE SPI SETTINGS
#define BLUEFRUIT_SPI_SCK              13
#define BLUEFRUIT_SPI_MISO             12
#define BLUEFRUIT_SPI_MOSI             11

Sélectionner le Bus Série

Once you've configured your pin setup in the BluefruitConfig.h file, you can now check and adapt the example sketch.

The Adafruit_BluefruitLE_nRF51 library supports four different serial bus options, depending on the HW you are using: SPI both hardware and software type, and UART both hardware and software type.

Carte de type UART (Bluefruit LE UART Friend & Flora BLE)

This is for Bluefruit LE UART Friend & Flora BLE boards. You can use either software serial or hardware serial. Hardware serial is higher quality, and less risky with respect to losing data. However, you may not have hardware serial available! Software serial does work just fine with flow-control and we do have that available at the cost of a single GPIO pin.

For software serial (Arduino Uno, Adafruit Metro) you should uncomment the software serial contructor below, and make sure the other three options (hardware serial & SPI) are commented out.

// Create the bluefruit object, either software serial...uncomment these lines
SoftwareSerial bluefruitSS = SoftwareSerial(BLUEFRUIT_SWUART_TXD_PIN, BLUEFRUIT_SWUART_RXD_PIN);

Adafruit_BluefruitLE_UART ble(bluefruitSS, BLUEFRUIT_UART_MODE_PIN,
                      BLUEFRUIT_UART_CTS_PIN, BLUEFRUIT_UART_RTS_PIN);

For boards that require hardware serial (Adafruit Flora, etc.), uncomment the hardware serial constructor, and make sure the other three options are commented out

/* ...or hardware serial, which does not need the RTS/CTS pins. Uncomment this line */
Adafruit_BluefruitLE_UART ble(BLUEFRUIT_HWSERIAL_NAME, BLUEFRUIT_UART_MODE_PIN);

Carte de type SPI (Bluefruit LE SPI Friend)

For SPI based boards, you should uncomment the hardware SPI constructor below, making sure the other constructors are commented out:

/* ...hardware SPI, using SCK/MOSI/MISO hardware SPI pins and then user selected CS/IRQ/RST */
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);

If for some reason you can't use HW SPI, you can switch to software mode to bit-bang the SPI transfers via the following constructor:

/* ...software SPI, using SCK/MOSI/MISO user-defined SPI pins and then user selected CS/IRQ/RST */
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_SCK, BLUEFRUIT_SPI_MISO,
                             BLUEFRUIT_SPI_MOSI, BLUEFRUIT_SPI_CS,
                             BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);

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Basé sur "Bluefruit LE Shield" d'Adafruit Industries, écrit par Kevin Townsend - Traduit en Français par shop.mchobby.be CC-BY-SA pour la traduction
Toute copie doit contenir ce crédit, lien vers cette page et la section "crédit de traduction".

Based on "Bluefruit LE Shield" from Adafruit Industries, written by Kevin Townsend - Translated to French by shop.mchobby.be CC-BY-SA for the translation
Copies must includes this credit, link to this page and the section "crédit de traduction" (translation credit).

Traduit avec l'autorisation d'AdaFruit Industries - Translated with the permission from Adafruit Industries - www.adafruit.com