将数据从支持 BLE 的 arduino 发送到 iOS 应用程序
Sending data from a BLE enabled arduino to an iOS App
我正在使用 Adafruit Bluefruit Feather 构建一个收集数据然后将数据发送到 iPhone 的设备，在那里读取和处理数据。我看过无数试图解释如何对设备进行编程的示例，但我似乎对如何通过蓝牙将设备连接到 iPhone 存在误解。
我们将此代码基于 Adafruit 示例之一，并尝试合并 Adafruit BLE Gatt 库 (https://learn.adafruit.com/introducing-adafruit-ble-bluetooth-low-energy-friend/ble-gatt), but it's not working and this is our first time working with Bluetooth. The iOS code we're using is from https://github.com/nebs/hello-bluetooth。我们没有对 swift 代码进行任何更改。欢迎任何建议。我们发现了很多关于将数据从应用程序发送到 arduino 的信息，但是关于将数据从 arduino 发送到应用程序的信息有限。如果你能告诉我们我们是否走在正确的轨道上，或者如果如果在发送数据方面有任何更改，我们将不胜感激。
以下是我迄今为止一直在使用的内容：
#include <Arduino.h>
#include <SPI.h>
#if not defined (_VARIANT_ARDUINO_DUE_X_) && not defined (_VARIANT_ARDUINO_ZERO_)
#include <SoftwareSerial.h>
#endif
#include "Adafruit_BLE.h"
#include "Adafruit_BluefruitLE_SPI.h"
#include "Adafruit_BluefruitLE_UART.h"
#include "BluefruitConfig.h"
#include "Adafruit_BLEGatt.h"
#define FACTORYRESET_ENABLE 1
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);
Adafruit_BLEGatt gatt(ble);
void error(const __FlashStringHelper*err) {
Serial.println(err);
while (1);
}
int32_t gattServiceId;
int32_t gattNotifiableCharId;
int32_t gattWritableResponseCharId;
int32_t gattWritableNoResponseCharId;
int32_t gattReadableCharId;
int32_t jumperPresentID;
void setup(void){
while (!Serial); // required for Flora & Micro
delay(500);
boolean success;
Serial.begin(115200);
randomSeed(micros());
Serial.print(F("Initialising the Bluefruit LE module: "));
if ( !ble.begin(VERBOSE_MODE) ){
error(F("Couldn't find Bluefruit, make sure it's in CoMmanD mode & check wiring?"));
}
Serial.println( F("OK!") );
if ( FACTORYRESET_ENABLE ){
Serial.println(F("Performing a factory reset: "));
if ( ! ble.factoryReset() ){
error(F("Couldn't factory reset"));
}
}
ble.echo(false);
Serial.println("Requesting Bluefruit info:");
ble.info();
Serial.println(F("Adding the Custom GATT Service definition: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDSERVICE=UUID128=00-77-13-12-10-00-00-00-00-00-EE-BA-AD-DA-BE-CF"), &gattServiceId);
if (! success) {
error(F("Could not add Custom GATT service"));
}
Serial.println(F("Adding the Notifiable characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-67-42-01-14-88-59-77-42-42-AB-BA-DA-DA-EE-CC,PROPERTIES=0x10,MIN_LEN=1, MAX_LEN=20, VALUE=-9999"), &gattNotifiableCharId);
if (! success) {
error(F("Could not add Custom Notifiable characteristic"));
}
Serial.println(F("Adding the Writable with Response characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-68-42-02-00-77-12-10-13-42-CC-BA-DE-FA-EA-BB,PROPERTIES=0x04,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN"), &gattWritableResponseCharId);
if (! success) {
error(F("Could not add Custom Writable with Response characteristic"));
}
Serial.println(F("Adding the Writable with No Response characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-69-42-03-00-77-12-10-13-42-CC-BA-DE-FA-EA-BC,PROPERTIES=0x08,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN"), &gattWritableNoResponseCharId);
if (! success) {
error(F("Could not add Custom Writable with No Response characteristic"));
}
Serial.println(F("Adding the Readable characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-70-42-04-00-77-12-10-13-42-CC-BA-DE-FA-EA-BD,PROPERTIES=0x02,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN"), &gattReadableCharId);
if (! success) {
error(F("Could not add Custom Readable characteristic"));
}
Serial.print(F("Adding Custom GATT Service UUID to the advertising payload: "));
ble.sendCommandCheckOK( F("AT+GAPSETADVDATA=02-01-06-03-02-12-13") );
jumperPresentID = gatt.addCharacteristic(0x04, GATT_CHARS_PROPERTIES_INDICATE, 5, 5, 5);
/* Reset the device for the new service setting changes to take effect */
Serial.print(F("Performing a SW reset (service changes require a reset): "));
ble.reset();
pinMode(A1, INPUT);
pinMode(A2, INPUT);
pinMode(A3, INPUT);
pinMode(A4, INPUT);
pinMode(A5, INPUT);
digitalWrite(A1, LOW);
digitalWrite(A2, LOW);
digitalWrite(A3, LOW);
digitalWrite(A4, LOW);
digitalWrite(A5, LOW);
}
void loop(void){
Serial.println("VOLTAGE");
int sensorValue = analogRead(A1);
float voltage = sensorValue * (3.3 / 1023.0);
delay(2000);
Serial.println(voltage);
if(voltage == 0){
Serial.println("ALERT");
}
if(analogRead(A1) == 0 || analogRead(A2) == 0 || analogRead(A3) == 0 || analogRead(A4) == 0 || analogRead(A5) == 0){
Serial.print("one is removed");
gatt.setChar(jumperPresentID, 0, 5);
}else{
gatt.setChar(jumperPresentID, 2, 5);
}
Serial.println(voltage);
delay(2000);
}
编辑：
我添加了 Arduino 串口的输出
Adafruit Bluefruit AT Command Example
------------------------------------- Initialising the Bluefruit LE module: OK! Performing a factory reset: AT+FACTORYRESET
<- OK ATE=0
<- OK Requesting Bluefruit info:
---------------- BLESPIFRIEND nRF51822 QFACA10 5953B6F51A2BE44E
0.6.7
0.6.7 Sep 17 2015 S110 8.0.0, 0.2
---------------- Adding the Custom GATT Service definition: AT+GATTADDSERVICE=UUID128=00-77-13-12-10-00-00-00-00-00-EE-BA-AD-DA-BE-CF
<- 1
<- OK Adding the Notifiable characteristic:
AT+GATTADDCHAR=UUID128=00-67-42-01-14-88-59-77-42-42-AB-BA-DA-DA-EE-CC,PROPERTIES=0x10,MIN_LEN=1,
MAX_LEN=20, VALUE=-9999
<- 1
<- OK Adding the Writable with Response characteristic:
AT+GATTADDCHAR=UUID128=00-68-42-02-00-77-12-10-13-42-CC-BA-DE-FA-EA-BB,PROPERTIES=0x04,MIN_LEN=1,
MAX_LEN=20, VALUE=GREEN
<- 2
<- OK Adding the Writable with No Response characteristic:
AT+GATTADDCHAR=UUID128=00-69-42-03-00-77-12-10-13-42-CC-BA-DE-FA-EA-BC,PROPERTIES=0x08,MIN_LEN=1,
MAX_LEN=20, VALUE=GREEN
<- 3
<- OK Adding the Readable characteristic:
AT+GATTADDCHAR=UUID128=00-70-42-04-00-77-12-10-13-42-CC-BA-DE-FA-EA-BD,PROPERTIES=0x02,MIN_LEN=1,
MAX_LEN=20, VALUE=GREEN
<- 4
<- OK Adding Custom GATT Service UUID to the advertising payload:
AT+GAPSETADVDATA=02-01-06-03-02-12-13
<- OK
AT+GATTADDCHAR=UUID=4,PROPERTIES=32,MIN_LEN=5,MAX_LEN=5,DATATYPE=5
Option Error: DATATYPE=5
<- ERROR Performing a SW reset (service changes require a reset): ATZ
<- OK VOLTAGE
0.97 AT+GATTCHAR=0,01-00-01-02-EE
<- ERROR
0.97 VOLTAGE
0.15 AT+GATTCHAR=0,01-00-01-02-EE
确保你有足够的电量。如果没有足够的电量启动蓝牙或 Wifi 设备，某些蓝牙或 WiFi Arduinos 在 运行 Arduino 草图后关闭。另外，尝试使用 Adafruits iPhone 代码尝试连接。
https://learn.adafruit.com/bluefruit-le-connect-for-ios
发布这个以防有人遇到类似问题 -- 我做了一些研究，最后也在 Adafruit 论坛上发帖，并从他们的技术支持那里得到了答复。我在这方面的错误更 device/BLE 具体。我将该设备视为中央设备而不是外围设备。
我发布他们的定义是因为我认为他们解释得很好：
Bluetooth splits devices into 'central' and 'peripheral' categories. Central devices initiate and control data transfers, peripherals advertise their presence and wait for a central to tell them what to do.
因此，我不需要尝试从设备发送信息，而是尝试使用 Swift 代码来提取它。我对它的 "how" 部分仍然有点迷茫，但这是我对这个问题的理解。
我正在使用 Adafruit Bluefruit Feather 构建一个收集数据然后将数据发送到 iPhone 的设备，在那里读取和处理数据。我看过无数试图解释如何对设备进行编程的示例，但我似乎对如何通过蓝牙将设备连接到 iPhone 存在误解。
我们将此代码基于 Adafruit 示例之一，并尝试合并 Adafruit BLE Gatt 库 (https://learn.adafruit.com/introducing-adafruit-ble-bluetooth-low-energy-friend/ble-gatt), but it's not working and this is our first time working with Bluetooth. The iOS code we're using is from https://github.com/nebs/hello-bluetooth。我们没有对 swift 代码进行任何更改。欢迎任何建议。我们发现了很多关于将数据从应用程序发送到 arduino 的信息，但是关于将数据从 arduino 发送到应用程序的信息有限。如果你能告诉我们我们是否走在正确的轨道上，或者如果如果在发送数据方面有任何更改，我们将不胜感激。
以下是我迄今为止一直在使用的内容：
#include <Arduino.h>
#include <SPI.h>
#if not defined (_VARIANT_ARDUINO_DUE_X_) && not defined (_VARIANT_ARDUINO_ZERO_)
#include <SoftwareSerial.h>
#endif
#include "Adafruit_BLE.h"
#include "Adafruit_BluefruitLE_SPI.h"
#include "Adafruit_BluefruitLE_UART.h"
#include "BluefruitConfig.h"
#include "Adafruit_BLEGatt.h"
#define FACTORYRESET_ENABLE 1
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);
Adafruit_BLEGatt gatt(ble);
void error(const __FlashStringHelper*err) {
Serial.println(err);
while (1);
}
int32_t gattServiceId;
int32_t gattNotifiableCharId;
int32_t gattWritableResponseCharId;
int32_t gattWritableNoResponseCharId;
int32_t gattReadableCharId;
int32_t jumperPresentID;
void setup(void){
while (!Serial); // required for Flora & Micro
delay(500);
boolean success;
Serial.begin(115200);
randomSeed(micros());
Serial.print(F("Initialising the Bluefruit LE module: "));
if ( !ble.begin(VERBOSE_MODE) ){
error(F("Couldn't find Bluefruit, make sure it's in CoMmanD mode & check wiring?"));
}
Serial.println( F("OK!") );
if ( FACTORYRESET_ENABLE ){
Serial.println(F("Performing a factory reset: "));
if ( ! ble.factoryReset() ){
error(F("Couldn't factory reset"));
}
}
ble.echo(false);
Serial.println("Requesting Bluefruit info:");
ble.info();
Serial.println(F("Adding the Custom GATT Service definition: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDSERVICE=UUID128=00-77-13-12-10-00-00-00-00-00-EE-BA-AD-DA-BE-CF"), &gattServiceId);
if (! success) {
error(F("Could not add Custom GATT service"));
}
Serial.println(F("Adding the Notifiable characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-67-42-01-14-88-59-77-42-42-AB-BA-DA-DA-EE-CC,PROPERTIES=0x10,MIN_LEN=1, MAX_LEN=20, VALUE=-9999"), &gattNotifiableCharId);
if (! success) {
error(F("Could not add Custom Notifiable characteristic"));
}
Serial.println(F("Adding the Writable with Response characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-68-42-02-00-77-12-10-13-42-CC-BA-DE-FA-EA-BB,PROPERTIES=0x04,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN"), &gattWritableResponseCharId);
if (! success) {
error(F("Could not add Custom Writable with Response characteristic"));
}
Serial.println(F("Adding the Writable with No Response characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-69-42-03-00-77-12-10-13-42-CC-BA-DE-FA-EA-BC,PROPERTIES=0x08,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN"), &gattWritableNoResponseCharId);
if (! success) {
error(F("Could not add Custom Writable with No Response characteristic"));
}
Serial.println(F("Adding the Readable characteristic: "));
success = ble.sendCommandWithIntReply( F("AT+GATTADDCHAR=UUID128=00-70-42-04-00-77-12-10-13-42-CC-BA-DE-FA-EA-BD,PROPERTIES=0x02,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN"), &gattReadableCharId);
if (! success) {
error(F("Could not add Custom Readable characteristic"));
}
Serial.print(F("Adding Custom GATT Service UUID to the advertising payload: "));
ble.sendCommandCheckOK( F("AT+GAPSETADVDATA=02-01-06-03-02-12-13") );
jumperPresentID = gatt.addCharacteristic(0x04, GATT_CHARS_PROPERTIES_INDICATE, 5, 5, 5);
/* Reset the device for the new service setting changes to take effect */
Serial.print(F("Performing a SW reset (service changes require a reset): "));
ble.reset();
pinMode(A1, INPUT);
pinMode(A2, INPUT);
pinMode(A3, INPUT);
pinMode(A4, INPUT);
pinMode(A5, INPUT);
digitalWrite(A1, LOW);
digitalWrite(A2, LOW);
digitalWrite(A3, LOW);
digitalWrite(A4, LOW);
digitalWrite(A5, LOW);
}
void loop(void){
Serial.println("VOLTAGE");
int sensorValue = analogRead(A1);
float voltage = sensorValue * (3.3 / 1023.0);
delay(2000);
Serial.println(voltage);
if(voltage == 0){
Serial.println("ALERT");
}
if(analogRead(A1) == 0 || analogRead(A2) == 0 || analogRead(A3) == 0 || analogRead(A4) == 0 || analogRead(A5) == 0){
Serial.print("one is removed");
gatt.setChar(jumperPresentID, 0, 5);
}else{
gatt.setChar(jumperPresentID, 2, 5);
}
Serial.println(voltage);
delay(2000);
}
编辑： 我添加了 Arduino 串口的输出
Adafruit Bluefruit AT Command Example ------------------------------------- Initialising the Bluefruit LE module: OK! Performing a factory reset: AT+FACTORYRESET
<- OK ATE=0
<- OK Requesting Bluefruit info: ---------------- BLESPIFRIEND nRF51822 QFACA10 5953B6F51A2BE44E 0.6.7 0.6.7 Sep 17 2015 S110 8.0.0, 0.2 ---------------- Adding the Custom GATT Service definition: AT+GATTADDSERVICE=UUID128=00-77-13-12-10-00-00-00-00-00-EE-BA-AD-DA-BE-CF
<- 1
<- OK Adding the Notifiable characteristic: AT+GATTADDCHAR=UUID128=00-67-42-01-14-88-59-77-42-42-AB-BA-DA-DA-EE-CC,PROPERTIES=0x10,MIN_LEN=1, MAX_LEN=20, VALUE=-9999
<- 1
<- OK Adding the Writable with Response characteristic: AT+GATTADDCHAR=UUID128=00-68-42-02-00-77-12-10-13-42-CC-BA-DE-FA-EA-BB,PROPERTIES=0x04,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN
<- 2
<- OK Adding the Writable with No Response characteristic: AT+GATTADDCHAR=UUID128=00-69-42-03-00-77-12-10-13-42-CC-BA-DE-FA-EA-BC,PROPERTIES=0x08,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN
<- 3
<- OK Adding the Readable characteristic: AT+GATTADDCHAR=UUID128=00-70-42-04-00-77-12-10-13-42-CC-BA-DE-FA-EA-BD,PROPERTIES=0x02,MIN_LEN=1, MAX_LEN=20, VALUE=GREEN
<- 4
<- OK Adding Custom GATT Service UUID to the advertising payload: AT+GAPSETADVDATA=02-01-06-03-02-12-13
<- OK AT+GATTADDCHAR=UUID=4,PROPERTIES=32,MIN_LEN=5,MAX_LEN=5,DATATYPE=5 Option Error: DATATYPE=5
<- ERROR Performing a SW reset (service changes require a reset): ATZ
<- OK VOLTAGE 0.97 AT+GATTCHAR=0,01-00-01-02-EE
<- ERROR 0.97 VOLTAGE 0.15 AT+GATTCHAR=0,01-00-01-02-EE
确保你有足够的电量。如果没有足够的电量启动蓝牙或 Wifi 设备，某些蓝牙或 WiFi Arduinos 在 运行 Arduino 草图后关闭。另外，尝试使用 Adafruits iPhone 代码尝试连接。 https://learn.adafruit.com/bluefruit-le-connect-for-ios
发布这个以防有人遇到类似问题 -- 我做了一些研究，最后也在 Adafruit 论坛上发帖，并从他们的技术支持那里得到了答复。我在这方面的错误更 device/BLE 具体。我将该设备视为中央设备而不是外围设备。
我发布他们的定义是因为我认为他们解释得很好：
Bluetooth splits devices into 'central' and 'peripheral' categories. Central devices initiate and control data transfers, peripherals advertise their presence and wait for a central to tell them what to do.
因此，我不需要尝试从设备发送信息，而是尝试使用 Swift 代码来提取它。我对它的 "how" 部分仍然有点迷茫，但这是我对这个问题的理解。