Guillaume Lefrant / Mbed 2 deprecated gtvl2_a3 Featured

This program is an advanced "IoT" thermometer using LM75B component library. It displays the current value to the Serial host in Celcius or Fahrenheit (possible to change using a switch). It also stores an historic and displays it to the user using the LCD screen. Moreover, you can change the orientation of the screen by turning the device, just like a smartphone.

Dependencies:   C12832 FXOS8700CQ LM75B mbed

Diff: ThermalDisplayer.cpp

Revision:
4:5bf99eb2d740
Parent:
3:a4dac093a968
Child:
6:6c61186c8739
--- a/ThermalDisplayer.cpp	Wed Feb 10 01:41:39 2016 +0000
+++ b/ThermalDisplayer.cpp	Wed Feb 10 16:48:55 2016 +0000
@@ -3,12 +3,15 @@
 /*
  *  Constructor, initialize Potentiometer, LCD and variables
  */
-ThermalDisplayer::ThermalDisplayer(): pot(A1)
+ThermalDisplayer::ThermalDisplayer(): pot(A1), accel(PTE25, PTE24, FXOS8700CQ_SLAVE_ADDR1)
 {
     this->lcd = new C12832(D11, D13, D12, D7, D10);
+    this->lcd->set_auto_up(0);
     this->temperatures = std::list<float>(MAX_SIZE);
     this->minScale = MIN_MIN_SCALE;
     this->maxScale = MAX_MAX_SCALE;
+    this->screenOrientation = true;
+    this->accel.enable();
 }
 
 /*
@@ -31,22 +34,39 @@
     int pos = 0;
     for (it = this->temperatures.begin(); it != this->temperatures.end(); it++, pos++) {
         int height = (int) (32 * ((*it) - this->minScale) / (this->maxScale - this->minScale));
+        height = height > DISPLAY_Y ? DISPLAY_Y : (height < 0 ? 0 : height);
         /*
          *  Draw a white rectangle to erase previous data.
-         *  Then, draw again.
+         *  Then, draw on top of it the new data.
          */
-        this->lcd->rect(pos * 2, 0, pos * 2 + 1, 32, 0);
-        this->lcd->rect(pos * 2, height < 0 ? 31 : 32 - height, pos * 2 + 1, 32, 1);
+        if (this->screenOrientation) {
+            this->lcd->rect(pos * 2, 0, pos * 2 + 1, DISPLAY_Y, 0);
+            this->lcd->rect(pos * 2, DISPLAY_Y - height, pos * 2 + 1, DISPLAY_Y, 1);
+        } else {
+            this->lcd->rect(DISPLAY_X - (pos * 2), 0, DISPLAY_X - (pos * 2 + 1), DISPLAY_Y, 0);
+            this->lcd->rect(DISPLAY_X - (pos * 2), 0, DISPLAY_X - (pos * 2 + 1), height, 1);
+        }
     }
+    this->lcd->copy_to_lcd();
 }
 
 /*
  *  Adjust scale of the display according to POT2
+ *  Also adjust the screen orientation accodring to FXOS8700CQ accelerometer
  */
-void    ThermalDisplayer::adjustScale()
+void    ThermalDisplayer::adjustScale(Serial &host)
 {
     float potValue = this->pot; 
 
     this->minScale = MIN_MIN_SCALE + potValue * (MAX_MIN_SCALE - MIN_MIN_SCALE);
     this->maxScale = MIN_MAX_SCALE + (1.0f - potValue) * (MAX_MAX_SCALE - MIN_MAX_SCALE);
+    
+    SRAWDATA accel_data;
+    SRAWDATA magn_data;
+    uint8_t data = this->accel.get_data(&accel_data, &magn_data);
+    if (accel_data.y <= -100) {
+        this->screenOrientation = false;   
+    } else {
+        this->screenOrientation = true;   
+    }
 }
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