【CurieNano上手2】快速上手
本帖最后由 灯灯灯 于 2017-5-5 14:08 编辑http://www.dfrobot.com.cn/community/data/attachment/forum/201704/07/172201jemo5reys4oteyum.jpg
功能概览
相比Arduino Nano，CurieNano的优点有：运算速度快、更大的存储空间、运动传感器、电子罗盘、蓝牙4.0、硬件神经元、I2S接口、实时时钟、板载2MB SPIFlash空间、更高速的ADC、双串口、中断引脚多达20个。
型号 ArduinoNano CurieNano
微控制器 ATmega328P Intel Curie
时钟频率 16MHz32MHz
工作电压 5V 3.3V
数字引脚个数 14 14
PWN引脚个数 6 4
模拟输入引脚个数 6 6
中断引脚个数 2 20
串口数量 1 2
Flash空间 32KB 196KB
SRAM空间 2KB 24KB
独有特点 IMU,BLE,PME,I2S,RTC,SPIFlash
一些例程
以下我给出一些独有特性的测试例程（其实例程在Arduino IDE官方示例里面都有，只不过我写的更加精简）
1、运动传感器IMU
效果：在串口打印加速度计读值，即101三个方向上的加速度值（单位m/s^2）#include <CurieIMU.h>
void setup() {
Serial.begin(9600);
CurieIMU.begin();
CurieIMU.setAccelerometerRange(2);
}
void loop() {
int ax, ay, az;
CurieIMU.readAccelerometer(ax, ay, az);
Serial.print((float)ax/16384);
Serial.print("\t");
Serial.print((float)ay/16384);
Serial.print("\t");
Serial.println((float)az/16384);
}2、蓝牙BLE
效果：下载手机端的NRF toobox以后，选择HRM(HeartRateMonitor)，连接Arduino101，可以看到读值从0~255循环变化，每1秒变一次#include <CurieBLE.h>
BLEPeripheral blePeripheral;
BLEService S("180D");
BLECharacteristic C("2A37", BLENotify, 2);
void setup() {
blePeripheral.setLocalName("Arduino 101");
blePeripheral.setAdvertisedServiceUuid(S.uuid());
blePeripheral.addAttribute(S);
blePeripheral.addAttribute(C);
blePeripheral.begin();
}
uint8_t data[] = {0,0};
void loop() {
data ++;
C.setValue(data,2);
delay(1000);
}3、实时时钟
效果：在串口打印实时时钟时间。注意：101每次断电重启时，时钟都会恢复最初值#include <CurieTime.h>
void setup() {
Serial.begin(9600);
}
void loop() {
Serial.print(hour());Serial.write(':');
Serial.print(minute());Serial.write(':');
Serial.print(second());Serial.print(" ");
Serial.print(day());Serial.write('/');
Serial.print(month());Serial.write('/');
Serial.println(year());
delay(1000);
}4、板载Flash
板载Flash大小为2MB，有一个固定文件大小的文件系统，每个文件在建立时就确定大小，之后不能改动，需要用到的库是SerialFlash，它是第三方的，需要去github下载github.com/PaulStoffregen/SerialFlash。以下是写入一个64B的文件的例程：
#include <SerialFlash.h>
#include <SPI.h>
#define File_SIZE 64
#define filename"myfile.txt"
char contents[] = "Arduino 101 serial flash file system test";
// digital pin for flash chip CS pin
#define g_FlashChipSelect 21
void setup() {
Serial.begin(9600);
while(!Serial);
if ( !SerialFlash.begin(g_FlashChipSelect) ){
Serial.println("Unable to access SPI Flash chip");
}
SerialFlashFile file;
if ( !SerialFlash.exists(filename)){
if(! SerialFlash.create(filename, File_SIZE)){
Serial.println("Not enough space to create file " filename);
return;
}
Serial.println("Creating file " filename);
}else{
Serial.println("File " filename " already exists");
}
file = SerialFlash.open(filename);
file.write(contents, sizeof(contents));
Serial.println("Write Done");
}
void loop() {
SerialFlashFile file = SerialFlash.open(filename);
if(file){
char buf;
Serial.println(filename ":");
file.read(buf,sizeof(contents));
Serial.println(buf);
}else{
Serial.println("File " filename " not exists");
}
delay(3000);
}
文件写入后，可以运行下面的程序，读出这个文件，显示在串口：
#include <SerialFlash.h>
#include <SPI.h>
#define filename"myfile.txt"
#define g_FlashChipSelect 21
void setup() {
Serial.begin(9600);
if ( !SerialFlash.begin(g_FlashChipSelect) ){
Serial.println("Unable to access SPI Flash chip");
}
}
void loop(){
SerialFlashFile file = SerialFlash.open(filename);
if(file){
char buf = {0};
Serial.println(filename ":");
file.read(buf,64);
Serial.println(buf);
}else{
Serial.println("File " filename " not exists");
}
delay(3000);
}
5、外部中断
CurieNano的所有IO引脚都可用于外部中断。本程序监听14~17号引脚是否发生下降沿中断，发生时打印中断引脚号。
void setup() {
attachInterrupt(14,intf14,FALLING);
attachInterrupt(15,intf15,FALLING);
attachInterrupt(16,intf16,FALLING);
attachInterrupt(17,intf17,FALLING);
interrupts();
Serial.begin(9600);
}
void intf14(){Serial.print("14 ");}
void intf15(){Serial.print("15 ");}
void intf16(){Serial.print("16 ");}
void intf17(){Serial.print("17 ");}
void loop() {}
6、定时器中断
本程序每1秒触发一次定时器中断，将13号引脚电平反转，板载LED灯出现闪烁效果。#include <CurieTimerOne.h>
void timeInterrupt(){
static uint8_t toggle = 0;
digitalWrite(13, toggle);
toggle = !toggle;
}
void setup() {
pinMode(13, OUTPUT);
CurieTimerOne.start(100000, &timeInterrupt);
}
void loop() {}7、分类算法
这就用到了Curie芯片的硬件神经元，需要在github下载第三方库CuriePME：github.com/01org/Intel-Pattern-Matching-Technology。以下的代码调用PME引擎，实现数据分类：#include <CuriePME.h>
void setup(){
Serial.begin(9600);
Serial.setTimeout(0xffffffff);
while (!Serial);
CuriePME.begin();
trainNeuronsWithData();
}
void loop(){
uint8_t vector;
vector = (uint8_t) Serial.parseInt();
vector = (uint8_t) Serial.parseInt();
int answer = CuriePME.classify(vector, 2);
if( answer == CuriePME.noMatch ){
Serial.println("Didn't match any categories.");
}else{
Serial.print("The closest matching is category: ");
Serial.println(answer);
}
}
void trainNeuronsWithData(){
commitSamples(1, 11, 24);
commitSamples(2, 38, 75);
commitSamples(3, 2, 56);
commitSamples(4, 111, 224);
commitSamples(5, 128, 200);
commitSamples(6, 99, 180);
Serial.println("Now input 2 numbers, between 0 and 255, Like 30 24, then press enter, make sure a \\n or \\r sended after that.");
}
void commitSamples (int category, uint8_t s1, uint8_t s2){
uint8_t vector = {s1,s2};
CuriePME.learn(vector, 2, category);
Serial.print("Category ");Serial.print( category );
Serial.print(" trained with: (");Serial.print(s1);Serial.print(",");Serial.print(s2);Serial.println(")");
} 参考和学习，很适用 感谢分享，找块板子来试试了。 这些例程有详细的么
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