wei zou
a demo to post your sensor data from ARCH GPRS to Xively
Fork of
USB2UART
by 
Yihui Xiong
ARCH GPRS With Xively
- Xively is an on-line database service allowing developers to connect sensor-derived data (e.g. energy and environment data from objects, devices & buildings) to the Web and to build their own applications based on that data,to know more, visit https://xively.com/
- Here, we use ARCH GPRS to post our sensor data(temperature/light/humidity etc.) to Xively.
ARCH GPRS Introduction
- Arch GPRS is a wireless network module based on EG-10, it can achive remote data colletion function to communicate with outside world by GPRS network.
- Arch GPRS has standard Arduino interface and Grove connectors. It’s convenient to connect existing Shields and Grove products to Arch GPRS.
- You can use the solar panel to charge for battery, and own to its low-power design, so Arch GPRS can work normally in outdoor.
- For more information, please visit http://www.seeedstudio.com/depot/arch-gprs-p-1657.html?cPath=6_11
Code
- Description: this demo is used as posting value of sound sensor to Xively every 10 seconds.
- Attention: you need to replace the PHONE_NUMBER/FEED_ID/SENSOR_ID/XIVELY_KEY with yours.
main.cpp
#include "gprs.h"
#define PHONE_NUMBER "139****7382"
#define IP_ADDRSS "216.52.233.120" //api.xively.com
#define PORT "80" //port addr
#define FEED_ID "your feeed ID"
#define SENSOR_ID "your sensor ID"
#define XIVELY_KEY "your Xively Key"
#define REQUEST_LENGTH 36
#define DATA_LENGTH 90
#define HEAD_LEN 270
#define NETWORK_APN "CMNET" //replace APN in your country
#define PINPWR P1_2 // power on EG 10, low enable
#define PINONOFF P1_7 // switch of EG10, low enable, low for 2s to turn on EG10
DigitalOut eg10_pwr(PINPWR);
DigitalOut eg10_on(PINONOFF);
GPRS gprs(USBTX, USBRX,115200,PHONE_NUMBER);
AnalogIn soundSensor(P0_11);
void EG10_PowerUp(void)
{
eg10_pwr = 1;
eg10_on = 1;
wait(2);
eg10_pwr = 0;
eg10_on = 0;
wait(2);
eg10_on = 1;
wait(2);
}
int putDataToXively(float sensorValue)
{
char request[REQUEST_LENGTH];
char dataStream[DATA_LENGTH];
char head[HEAD_LEN];
snprintf(request,REQUEST_LENGTH,"PUT /v2/feeds/%s HTTP/1.1\r\n",FEED_ID);
snprintf(dataStream,DATA_LENGTH,"{\"version\":\"1.0.0\", \"datastreams\" : [{ \"id\" : \"%s\", \"current_value\" : \"%f\"}]}\r\n",SENSOR_ID,sensorValue);
int dataLen = strlen(dataStream);
snprintf(head,HEAD_LEN,"%sHost: api.xively.com\r\nX-ApiKey: %s\r\nUser-Agent: Xively-Arduino-Lib/1.0\r\nContent-Length: %d\r\n\r\n%s",request,XIVELY_KEY,dataLen,dataStream);
if(0 != gprs.networkInit(NETWORK_APN,NULL,NULL)){ //APN,User,PassWd
return -1;
}
if(0 != gprs.connectTCP(IP_ADDRSS,PORT)) {
goto STOP;
}
wait(5);
if(0 != gprs.sendTCPData(head)) {
goto STOP;
}
STOP:
gprs.closeTCP();
return 0;
}
int main()
{
EG10_PowerUp();
while(0 != gprs.init()) {
wait(2);
}
while(1) {
putDataToXively(10*soundSensor.read());
wait(10);
}
}
Diff: main.cpp
- Revision:
- 3:40d09aa56b86
- Parent:
- 2:427b69ad737c
- Child:
- 5:97b82fe2c712
--- a/main.cpp Wed Dec 25 03:04:09 2013 +0000
+++ b/main.cpp Fri Jan 10 06:01:05 2014 +0000
@@ -1,46 +1,64 @@
-/**
- * USB to UART Bridge
- */
-
-#include "mbed.h"
-#include "USBSerial.h"
+#include "gprs.h"
-Serial uart(USBTX, USBRX);
-USBSerial pc;
-DigitalOut led1(LED1);
-DigitalOut led2(LED2);
-DigitalOut led3(LED3);
+#define PHONE_NUMBER "139****7382"
+#define IP_ADDRSS "216.52.233.120" //api.xively.com
+#define PORT "80" //port addr
+#define FEED_ID "your feeed ID"
+#define SENSOR_ID "your sensor ID"
+#define XIVELY_KEY "your Xively Key"
+#define REQUEST_LENGTH 36
+#define DATA_LENGTH 90
+#define HEAD_LEN 270
+
+#define PINPWR P1_2 // power on EG 10, low enable
+#define PINONOFF P1_7 // switch of EG10, low enable, low for 2s to turn on EG10
+
+DigitalOut eg10_pwr(PINPWR);
+DigitalOut eg10_on(PINONOFF);
+GPRS gprs(USBTX, USBRX,115200,PHONE_NUMBER);
+AnalogIn soundSensor(P0_11);
-// Called by ISR
-void settingsChanged(int baud, int bits, int parity, int stop)
+void EG10_PowerUp(void)
+{
+ eg10_pwr = 1;
+ eg10_on = 1;
+ wait(2);
+ eg10_pwr = 0;
+ eg10_on = 0;
+ wait(2);
+ eg10_on = 1;
+ wait(2);
+}
+
+int putDataToXively(float sensorValue)
{
- const Serial::Parity parityTable[] = {Serial::None, Serial::Odd, Serial::Even, Serial::Forced0, Serial::Forced1};
-
-
- led1 = 1;
- if (stop != 2) {
- stop = 1; // stop bit(s) = 1 or 1.5
+ char request[REQUEST_LENGTH];
+ char dataStream[DATA_LENGTH];
+ char head[HEAD_LEN];
+ snprintf(request,REQUEST_LENGTH,"PUT /v2/feeds/%s HTTP/1.1\r\n",FEED_ID);
+ snprintf(dataStream,DATA_LENGTH,"{\"version\":\"1.0.0\", \"datastreams\" : [{ \"id\" : \"%s\", \"current_value\" : \"%f\"}]}\r\n",SENSOR_ID,sensorValue);
+ int dataLen = strlen(dataStream);
+ snprintf(head,HEAD_LEN,"%sHost: api.xively.com\r\nX-ApiKey: %s\r\nUser-Agent: Xively-Arduino-Lib/1.0\r\nContent-Length: %d\r\n\r\n%s",request,XIVELY_KEY,dataLen,dataStream);
+ if(0 != gprs.connectTCP(IP_ADDRSS,PORT)) {
+ goto STOP;
}
- uart.baud(baud);
- uart.format(bits, parityTable[parity], stop);
- led1 = 0;
+ wait(5);
+ if(0 != gprs.sendTCPData(head)) {
+ goto STOP;
+ }
+STOP:
+ gprs.closeTCP();
+ return 0;
}
int main()
{
- pc.attach(settingsChanged);
-
- while (1) {
- while (uart.readable()) {
- led2 = 1;
- pc.putc(uart.getc());
- led2 = 0;
- }
-
- while (pc.readable()) {
- led3 = 1;
- uart.putc(pc.getc());
- led3 = 0;
- }
+ EG10_PowerUp();
+ while(0 != gprs.init()) {
+ wait(2);
+ }
+ while(1) {
+ putDataToXively(10*soundSensor.read());
+ wait(10);
}
}