Defined functions for display updates.

+ Added defintions for updating the LCD display.

README.md

@@ -11,6 +11,11 @@
 - [BN-220 GPS ](https://www.amazon.com/Navigation-Raspberry-Betaflight-Geekstory-Shipping/dp/B07PRDY6DS?th=1)
 - [LSM303AGR Accelerometer + Compass](https://learn.adafruit.com/lsm303-accelerometer-slash-compass-breakout/overview)
 
+**NOTE:**
+
+The logic level and voltage supply for the LCD display need to be the same. 
+It's listed as needing to be 3.3v in the documentation.
+
 ## Configuration
 
 The project can be configured to use a variety of hardware or differnt 
@@ -91,6 +96,7 @@ tree -L 1
 
 6 directories, 7 files
 ```
+
 ## Project Dependencies
 
 - RadioHead RFM9x Library

src/multi-tracker.cpp

@@ -266,12 +266,23 @@ void updateLEDs(int heading) {
 
 // Updates the distance part of the display
 void TFT_UpdateDistance(uint16_t meters) {
+    tft.setTextWrap(false);
+    tft.setCursor(0, 0);
+    tft.setTextColor(ST77XX_WHITE);
+    tft.setTextSize(2);
+    tft.println(meters);
+    tft.println(" Meters");
 
 }
 
 // Updates the direction part of the display
-void TFT_UpdateDirection() {
+void TFT_UpdateDirection(uint16_t degrees) {
-
+    tft.setTextWrap(false);
+    tft.setCursor(0, 40);
+    tft.setTextColor(ST77XX_WHITE);
+    tft.setTextSize(2);
+    tft.println(meters);
+    tft.println(" Degrees");
 }
 
 // Updates the batter/voltage state.
@@ -280,12 +291,23 @@ uint8_t TFT_UpdateBatteryState(uint8_t percentage) {
         return Err;
     }
 
+    tft.setTextWrap(false);
+    tft.setCursor(0, 80);
+    tft.setTextColor(ST77XX_WHITE);
+    tft.setTextSize(2);
+    tft.println(percentage);
+    tft.println("% Batt");
+
     return Ok;
 }
 
 // Displays the specifications of the node.
 void TFT_DisplaySpecs(void) {
+  tft.fillScreen(ST77XX_BLACK);     // Set the screen background to black
 
+  TFT_UpdateDistance(0);
+  TFT_UpdateDirection(0);
+  TFT_UpdateBatteryState(100);
 }
 
 
@@ -299,6 +321,7 @@ uint8_t TFT_Init(void) {
   // Display Setup
   tft.init(TFT_X, TFT_Y);           // Initialize the display with a resolution of 240x280 pixels
   tft.fillScreen(ST77XX_BLACK);     // Set the screen background to black
+  tft.setRotation(0);                // Set's the rotation of the screen.
 
   TFT_UpdateDistance(0);
   TFT_UpdateDirection(0);