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@4:3c1d712dcc48, 2015-12-11 (annotated)

Committer:
mbedAustin
Date:
Fri Dec 11 00:25:01 2015 +0000
Revision:
4:3c1d712dcc48
Parent:
3:694a1a67b156 
made default wifi pins match K64F

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"
mbedAustin 3:694a1a67b156 4 #include "ESP8266Interface.h"
mbedAustin 3:694a1a67b156 5 #include "TCPSocketConnection.h"
jb8414 0:ece599ab76bb 6
jb8414 0:ece599ab76bb 7
jb8414 0:ece599ab76bb 8 #ifndef MAX
jb8414 0:ece599ab76bb 9 #define max(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a > _b ? _a : _b; })
jb8414 0:ece599ab76bb 10 #endif
jb8414 0:ece599ab76bb 11
jb8414 0:ece599ab76bb 12 #ifndef MIN
jb8414 0:ece599ab76bb 13 #define min(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; })
jb8414 0:ece599ab76bb 14 #endif
jb8414 0:ece599ab76bb 15
jb8414 1:c7b9e522cc8e 16 char deviceId[] = "<device id>"; // Device you want to push to
jb8414 1:c7b9e522cc8e 17 char streamName[] = "<stream name>"; // Stream you want to push to
jb8414 1:c7b9e522cc8e 18 char m2xKey[] = "<m2x api key>"; // Your M2X API Key or Master API Key
jb8414 0:ece599ab76bb 19
mbedAustin 3:694a1a67b156 20 /*
mbedAustin 4:3c1d712dcc48 21 * ESP8266 Wifi Config, connect it to D0 on Seeed Grove shield
mbedAustin 3:694a1a67b156 22 */
mbedAustin 4:3c1d712dcc48 23 ESP8266Interface wifi(D1,D0,D3,"wifi-name","wifi-password",115200); // TX,RX,Reset,SSID,Password,Baud
mbedAustin 3:694a1a67b156 24
jb8414 0:ece599ab76bb 25 int main()
jb8414 0:ece599ab76bb 26 {
mbedAustin 3:694a1a67b156 27 printf("Starting...\r\n");
mbedAustin 3:694a1a67b156 28
mbedAustin 3:694a1a67b156 29 // connect to wifi
mbedAustin 3:694a1a67b156 30 wifi.init(); //Reset
mbedAustin 3:694a1a67b156 31 wifi.connect(); //Use DHCP
mbedAustin 3:694a1a67b156 32 printf("IP Address is %s \n\r", wifi.getIPAddress());
jb8414 0:ece599ab76bb 33
jb8414 0:ece599ab76bb 34 // Initialize the M2X client
jb8414 0:ece599ab76bb 35 Client client;
mbedAustin 3:694a1a67b156 36 M2XStreamClient m2xClient(&client, m2xKey,1,"52.22.150.98");
jb8414 0:ece599ab76bb 37 int ret;
jb8414 0:ece599ab76bb 38
jb8414 0:ece599ab76bb 39 // Create an accelerometer instance
jb8414 0:ece599ab76bb 40 FXOS8700Q_acc acc( PTE25, PTE24, FXOS8700CQ_SLAVE_ADDR1); // Proper Ports and I2C Address for K64F Freedom board
jb8414 0:ece599ab76bb 41 acc.enable();
jb8414 0:ece599ab76bb 42 printf("\r\n\nFXOS8700Q Who Am I= %X\r\n", acc.whoAmI());
jb8414 0:ece599ab76bb 43
jb8414 0:ece599ab76bb 44 while (true) {
jb8414 0:ece599ab76bb 45
jb8414 0:ece599ab76bb 46 float x, y, z;
jb8414 0:ece599ab76bb 47 acc.getX(&x);
jb8414 0:ece599ab76bb 48 acc.getY(&y);
jb8414 0:ece599ab76bb 49 acc.getZ(&z);
jb8414 0:ece599ab76bb 50
jb8414 0:ece599ab76bb 51 printf("Accel X: %1.2f, Y: %1.2f, Z: %1.2f\n\r", x, y, z);
jb8414 0:ece599ab76bb 52
jb8414 0:ece599ab76bb 53 // Calculate pitch and roll. Find the maximum tilt angle.
jb8414 0:ece599ab76bb 54 float pitch = atan(x / sqrt(y * y + z * z));
jb8414 0:ece599ab76bb 55 float roll = atan(y / sqrt(x * x + z * z));
jb8414 0:ece599ab76bb 56 float maxTilt =
jb8414 0:ece599ab76bb 57 max(abs(roll), abs(pitch)) * 180.0 / 3.14159;
jb8414 0:ece599ab76bb 58 printf("pitch: %5.1f roll: %5.1f maxTilt: %5.1f\n\r",
jb8414 0:ece599ab76bb 59 pitch, roll, maxTilt);
jb8414 0:ece599ab76bb 60
jb8414 0:ece599ab76bb 61 // If the maximum title is over 20 degrees, then send
jb8414 0:ece599ab76bb 62 // data to stream
mbedAustin 3:694a1a67b156 63
jb8414 1:c7b9e522cc8e 64 ret = m2xClient.updateStreamValue(deviceId, streamName, maxTilt);
jb8414 0:ece599ab76bb 65 printf("send() returned %d\r\n", ret);
jb8414 2:68b759c89fd9 66 wait(1.0);
mbedAustin 3:694a1a67b156 67
jb8414 0:ece599ab76bb 68 }
jb8414 0:ece599ab76bb 69 }