Remi Beges / Mbed 2 deprecated telemetry_sensors_demo

A demo on NXP KL25Z of the telemetry library to publish some sensor data that can be read/plotted on the computer using pytelemetrycli (https://github.com/Overdrivr/pytelemetrycli) Published data: "touch" -> capacitive slider output value "acc:x" -> x channel of the accelerometer "acc:y" -> y channel "acc:z" -> z channel

Dependencies:   BufferedSerial MMA8451Q mbed telemetry tsi_sensor

Files at this revision

API Documentation at this revision

Revision 1:b63db8e76533, committed 2016-02-22

Comitter:
Overdrivr
Date:
Mon Feb 22 21:58:19 2016 +0000
Parent:
0:d38b884af46a
Child:
2:9bf273ead1b0
Commit message:
Initial commit

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
telemetry.lib Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Thu Feb 11 08:59:40 2016 +0000
+++ b/main.cpp	Mon Feb 22 21:58:19 2016 +0000
@@ -1,41 +1,50 @@
 #include "mbed.h"
-#include "telemetry/driver.hpp"
+#include "telemetry/Telemetry.h"
 #include "tsi_sensor.h"
 #include "MMA8451Q.h"
  
 #define MMA8451_I2C_ADDRESS (0x1d<<1)
 
-DigitalOut led(LED1);
+/*
+    Example of the 'Telemetry' library, a portable communication library for embedded devices.
+    
+    This code fetches all the data from the KL25Z bord and publishes it on different topics :
+    
+    The available data is the following :
+    * Accelerometer X
+    * Accelerometer Y
+    * Accelerometer Z
+    * Capacitive slider
+    
+    You can use the Pytelemetry Command Line Interface to open plots, visualize the received data,
+    and communicate with the car.
+    See https://github.com/Overdrivr/pytelemetrycli
+*/
 
-struct TM_state {
-  float throttle;  
-};
 
-void process(TM_state* state, TM_msg* msg);
+DigitalOut led(LED1);
 
 int main()
 {   
-    // Instance the structure holding our application tuning parameters
-    TM_state state;
-    state.throttle = 0;
-    
-    // Instance Telemetry
-    Telemetry TM(&state);
-    // Connect our process function
-    TM.sub(process);
-    
+    Telemetry TM(115200);
+
     // Some sensors to read
     TSIAnalogSlider tsi(PTB16,PTB17,40);
     MMA8451Q acc(PTE25, PTE24);
     
     led = 1;
     
+    // Some timers
     Timer tm_timer;
     Timer print_timer;
     Timer led_timer;
     
     tm_timer.start();
     print_timer.start();
+    led_timer.start();
+    
+    // To store accelerometer values
+    int16_t axis[3];
     
     for(;;)
     {       
@@ -53,15 +62,11 @@
             print_timer.reset();
             TM.pub_f32("touch",tsi.readPercentage());
             
-            int16_t axis[3];
             acc.getAccAllAxis(axis);
             
-            TM.pub_i16("acc:x",axis[0]);
-            TM.pub_i16("acc:y",axis[1]);
-            TM.pub_i16("acc:z",axis[2]);
-            
-            TM.pub_f32("throttle",state.throttle);
-            
+            TM.pub_i16("acc/x",axis[0]);
+            TM.pub_i16("acc/y",axis[1]);
+            TM.pub_i16("acc/z",axis[2]);            
         }
         
         if(led_timer.read_ms() > 500)
@@ -70,19 +75,4 @@
             led = (led == 0) ? 1 : 0;  
         }
     }
-}
-
-void process(TM_state* state, TM_msg* msg)
-{
-    float value = 0.f;
-    
-    // If the received frame topic matches "throttle"
-    if(strcmp(msg->topic,"throttle") == 0)
-    {
-        // If the payload type matches float32
-        if(emplace_f32(msg,&value))
-        {
-            state->throttle = value; 
-        }
-    }
 }
\ No newline at end of file

--- a/telemetry.lib	Thu Feb 11 08:59:40 2016 +0000
+++ b/telemetry.lib	Mon Feb 22 21:58:19 2016 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/Overdrivr/code/telemetry/#b7a3ac7bcec8
+http://mbed.org/users/Overdrivr/code/telemetry/#8e3de1a314e1