a demo to post your sensor data from ARCH GPRS to Xively
Fork of USB2UART by
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); } }