mBot PM2.5 ThinkSpeak上傳範例
我們在mBlock中，使用Makeblock的PM2.5模組可取得空氣中的細懸浮微粒指數，若需要再使用WIFI模組上傳資料到ThinkSpeak時，就會無法持續更新PM2.5的指數。因為WIFI模組增強版的擴展指令並非原廠開發，而忽略了一些細節導致這個狀況，但這個非原廠的擴展又是超好用，怎麼辦？接下來，我們就來教大家如何克服這個問題，ＧＯ！下載本地安裝擴展：
ThinkSpeak擴展
PM2.5擴展
硬體接法：
* IOT WIFI 模組接 1 號埠
* 表情面版接 2 號埠
* PM2.5模組接 4 號埠
mBlock程式：
自動產生的 Arduino C 程式碼：
#include <Arduino.h>
#include <Wire.h>
#include <SoftwareSerial.h>
#include <MePm25Sensor.h>
#include <MeMCore.h>
/* HKU e-Learning Lab: Steve Suen, Ken Law, Karl Cheung, Nicholas Szeto, Envose Au (Special thanks to Mr. Kwok Tsz Fung) */
MeDCMotor motor_9(9);
MeDCMotor motor_10(10);
void move(int direction, int speed)
{
int leftSpeed = 0;
int rightSpeed = 0;
if(direction == 1){
leftSpeed = speed;
rightSpeed = speed;
}else if(direction == 2){
leftSpeed = -speed;
rightSpeed = -speed;
}else if(direction == 3){
leftSpeed = -speed;
rightSpeed = speed;
}else if(direction == 4){
leftSpeed = speed;
rightSpeed = -speed;
}
motor_9.run((9)==M1?-(leftSpeed):(leftSpeed));
motor_10.run((10)==M1?-(rightSpeed):(rightSpeed));
}
double angle_rad = PI/180.0;
double angle_deg = 180.0/PI;
double PM25;
int receivePin[] = {12, 10, A3, A1};
int transmitPin[] = {11, 9, A2, A0};
SoftwareSerial wifiConnection(receivePin, transmitPin);
MePm25Sensor myMePm25Sensor(4);
uint16_t getPMValue(int type)
{
switch(type)
{
case 1:
return myMePm25Sensor.readPm1_0Concentration();
break;
case 2:
return myMePm25Sensor.readPm2_5Concentration();
break;
case 3:
return myMePm25Sensor.readPm10Concentration();
break;
}
}
MeLEDMatrix ledMtx_2(2);
char thingSpeakHttpGet;
void setup(){
myMePm25Sensor.begin(9600);
ledMtx_2.setColorIndex(1);
ledMtx_2.setBrightness(6);
wifiConnection.begin(9600);
wifiConnection.println(F("AT+CWMODE=1"));
delay(1000);
wifiConnection.println(F("AT+CIPMUX=0"));
wifiConnection.println("AT+CWJAP=\""+(String)"你Wifi的SSID"+"\"+\""+(String)"你Wifi的密碼"+"\"");
delay(10000);
}
void loop(){
_delay(1);
PM25 = getPMValue(2);
ledMtx_2.showNum(PM25,3);
sprintf(thingSpeakHttpGet, "GET /update?api_key=%s&field1=%d&field2=%d&field3=%d&field4=%d&field5=%d&field6=%d&field7=%d&field8=%d", "你的API Key", (int)PM25, (int)6, (int)6, (int)0, (int)0, (int)0, (int)0, (int)0);
wifiConnection.println(F("AT+CIPSTART=\"TCP\",\"184.106.153.149\",80"));
delay(3000);
wifiConnection.println("AT+CIPSEND="+(String)(strlen(thingSpeakHttpGet)+2));
delay(3000);
wifiConnection.println(thingSpeakHttpGet);
delay(3000);
wifiConnection.println(F("AT+CIPCLOSE"));
_delay(15);
_loop();
}
void _delay(float seconds){
long endTime = millis() + seconds * 1000;
while(millis() < endTime)_loop();
}
void _loop(){
myMePm25Sensor.rxloop();
}
修改說明圖解：
修改後的 Arduino C 程式碼：
#include <Arduino.h>
#include <Wire.h>
#include <SoftwareSerial.h>
#include <MePm25Sensor.h>
#include <MeMCore.h>
/* HKU e-Learning Lab: Steve Suen, Ken Law, Karl Cheung, Nicholas Szeto, Envose Au (Special thanks to Mr. Kwok Tsz Fung) */
MeDCMotor motor_9(9);
MeDCMotor motor_10(10);
void move(int direction, int speed)
{
int leftSpeed = 0;
int rightSpeed = 0;
if(direction == 1){
leftSpeed = speed;
rightSpeed = speed;
}else if(direction == 2){
leftSpeed = -speed;
rightSpeed = -speed;
}else if(direction == 3){
leftSpeed = -speed;
rightSpeed = speed;
}else if(direction == 4){
leftSpeed = speed;
rightSpeed = -speed;
}
motor_9.run((9)==M1?-(leftSpeed):(leftSpeed));
motor_10.run((10)==M1?-(rightSpeed):(rightSpeed));
}
double angle_rad = PI/180.0;
double angle_deg = 180.0/PI;
double PM25;
int receivePin[] = {12, 10, A3, A1};
int transmitPin[] = {11, 9, A2, A0};
SoftwareSerial wifiConnection(receivePin, transmitPin);
MePm25Sensor myMePm25Sensor(4);
uint16_t getPMValue(int type)
{
switch(type)
{
case 1:
return myMePm25Sensor.readPm1_0Concentration();
break;
case 2:
return myMePm25Sensor.readPm2_5Concentration();
break;
case 3:
return myMePm25Sensor.readPm10Concentration();
break;
}
}
MeLEDMatrix ledMtx_2(2);
char thingSpeakHttpGet;
void setup(){
ledMtx_2.setColorIndex(1);
ledMtx_2.setBrightness(6);
wifiConnection.begin(9600);
wifiConnection.println(F("AT+CWMODE=1"));
delay(1000);
wifiConnection.println(F("AT+CIPMUX=0"));
wifiConnection.println("AT+CWJAP=\""+(String)"你Wifi的SSID"+"\"+\""+(String)"你Wifi的密碼"+"\"");
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