AT&T Developer Summit Hackathon 2016 / Mbed 2 deprecated M2X_K64F_Accel_ESP8266-wifi Featured

Example of using the ATT M2X back end. Connect over Wifi with the ESP8266 chip. This code sends accelerometer data to M2X. This code can be used for Any board, just change the RX/TX pins the wifi adapter is connected to.

Dependencies:   ESP8266Interface FXOS8700Q M2XStreamClient jsonlite mbed

Fork of M2X_Nucleo411_Accel_ESP8266-wifi by AT&T Developer Summit Hackathon 2016

main.cpp@1:c7b9e522cc8e, 2015-08-29 (annotated)

Committer:
jb8414
Date:
Sat Aug 29 17:11:28 2015 +0000
Revision:
1:c7b9e522cc8e
Parent:
0:ece599ab76bb
Child:
2:68b759c89fd9
Update with new M2XStreamClient

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jb8414 0:ece599ab76bb 1 #include "mbed.h"
jb8414 0:ece599ab76bb 2 #include "FXOS8700Q.h"
jb8414 0:ece599ab76bb 3 #include "M2XStreamClient.h"
jb8414 0:ece599ab76bb 4 #include "EthernetInterface.h"
jb8414 0:ece599ab76bb 5
jb8414 0:ece599ab76bb 6
jb8414 0:ece599ab76bb 7 #ifndef MAX
jb8414 0:ece599ab76bb 8 #define max(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a > _b ? _a : _b; })
jb8414 0:ece599ab76bb 9 #endif
jb8414 0:ece599ab76bb 10
jb8414 0:ece599ab76bb 11 #ifndef MIN
jb8414 0:ece599ab76bb 12 #define min(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; })
jb8414 0:ece599ab76bb 13 #endif
jb8414 0:ece599ab76bb 14
jb8414 1:c7b9e522cc8e 15 char deviceId[] = "<device id>"; // Device you want to push to
jb8414 1:c7b9e522cc8e 16 char streamName[] = "<stream name>"; // Stream you want to push to
jb8414 1:c7b9e522cc8e 17 char m2xKey[] = "<m2x api key>"; // Your M2X API Key or Master API Key
jb8414 0:ece599ab76bb 18
jb8414 0:ece599ab76bb 19 int main()
jb8414 0:ece599ab76bb 20 {
jb8414 0:ece599ab76bb 21 // Setup Ethernet
jb8414 0:ece599ab76bb 22 printf("Start\r\n");
jb8414 0:ece599ab76bb 23 EthernetInterface eth;
jb8414 0:ece599ab76bb 24 printf("Init...\r\n");
jb8414 0:ece599ab76bb 25 eth.init(); //Use DHCP
jb8414 0:ece599ab76bb 26 //eth.init(ip,mask,gateway); //Use Static IP Configuration
jb8414 0:ece599ab76bb 27 printf("Connect\r\n");
jb8414 0:ece599ab76bb 28 eth.connect();
jb8414 0:ece599ab76bb 29 printf("Device IP Address is %s\r\n", eth.getIPAddress());
jb8414 0:ece599ab76bb 30
jb8414 0:ece599ab76bb 31 // Initialize the M2X client
jb8414 0:ece599ab76bb 32 Client client;
jb8414 1:c7b9e522cc8e 33 M2XStreamClient m2xClient(&client, m2xKey);
jb8414 0:ece599ab76bb 34 int ret;
jb8414 0:ece599ab76bb 35
jb8414 0:ece599ab76bb 36 // Create an accelerometer instance
jb8414 0:ece599ab76bb 37 FXOS8700Q_acc acc( PTE25, PTE24, FXOS8700CQ_SLAVE_ADDR1); // Proper Ports and I2C Address for K64F Freedom board
jb8414 0:ece599ab76bb 38 acc.enable();
jb8414 0:ece599ab76bb 39 printf("\r\n\nFXOS8700Q Who Am I= %X\r\n", acc.whoAmI());
jb8414 0:ece599ab76bb 40
jb8414 0:ece599ab76bb 41 while (true) {
jb8414 0:ece599ab76bb 42
jb8414 0:ece599ab76bb 43 float x, y, z;
jb8414 0:ece599ab76bb 44 acc.getX(&x);
jb8414 0:ece599ab76bb 45 acc.getY(&y);
jb8414 0:ece599ab76bb 46 acc.getZ(&z);
jb8414 0:ece599ab76bb 47
jb8414 0:ece599ab76bb 48 printf("Accel X: %1.2f, Y: %1.2f, Z: %1.2f\n\r", x, y, z);
jb8414 0:ece599ab76bb 49
jb8414 0:ece599ab76bb 50 // Calculate pitch and roll. Find the maximum tilt angle.
jb8414 0:ece599ab76bb 51 float pitch = atan(x / sqrt(y * y + z * z));
jb8414 0:ece599ab76bb 52 float roll = atan(y / sqrt(x * x + z * z));
jb8414 0:ece599ab76bb 53 float maxTilt =
jb8414 0:ece599ab76bb 54 max(abs(roll), abs(pitch)) * 180.0 / 3.14159;
jb8414 0:ece599ab76bb 55 printf("pitch: %5.1f roll: %5.1f maxTilt: %5.1f\n\r",
jb8414 0:ece599ab76bb 56 pitch, roll, maxTilt);
jb8414 0:ece599ab76bb 57
jb8414 0:ece599ab76bb 58 // If the maximum title is over 20 degrees, then send
jb8414 0:ece599ab76bb 59 // data to stream
jb8414 0:ece599ab76bb 60 if (maxTilt > 20) {
jb8414 1:c7b9e522cc8e 61 ret = m2xClient.updateStreamValue(deviceId, streamName, maxTilt);
jb8414 0:ece599ab76bb 62 printf("send() returned %d\r\n", ret);
jb8414 1:c7b9e522cc8e 63 wait(0.5);
jb8414 0:ece599ab76bb 64 }
jb8414 0:ece599ab76bb 65 }
jb8414 0:ece599ab76bb 66 }