add oled display

controller_teensy/include/definitions.h

@@ -121,4 +121,6 @@ bool armed = false; //cmd output values forced to 0 if false
 #define CURRENT_FILTER_SIZE 60 //latency is about CURRENT_FILTER_SIZE/2*MEASURE_INTERVAL (measure interval is defined by hoverboard controller)
 #define CURRENT_MEANVALUECOUNT 20 //0<= meanvaluecount < CURRENT_FILTER_SIZE/2. how many values will be used from sorted weight array from the center region. abour double this values reading are used
 
+#define DISPLAYUPDATEPERIOD 100
+
 #endif

controller_teensy/include/display.h

@@ -0,0 +1,38 @@
+#ifndef _DISPLAY_H_
+#define _DISPLAY_H_
+
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+
+#define SCREEN_WIDTH 128 // OLED display width, in pixels
+#define SCREEN_HEIGHT 32 // OLED display height, in pixels
+
+#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
+#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+void display_init();
+void display_test();
+
+void display_init(){
+  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
+    Serial.println(F("SSD1306 allocation failed"));
+  }
+  display.clearDisplay();
+  display.display();
+}
+
+void display_test(){
+  display.clearDisplay();
+  display.setTextSize(1);             // Normal 1:1 pixel scale
+  display.setTextColor(SSD1306_WHITE);        // Draw white text
+  display.setCursor(0,0);             // Start at top-left corner
+  display.println(F("Hello Welt"));
+  display.println(millis());
+  display.println(now());
+  display.display();
+}
+
+
+#endif

controller_teensy/platformio.ini

@@ -22,3 +22,4 @@ build_flags =
 
 lib_deps =
     robtillaart/ADS1X15@^0.3.9
+    adafruit/Adafruit SSD1306@^2.5.7

controller_teensy/src/main.cpp

@@ -1,11 +1,11 @@
 #include <Arduino.h>
 
-
 #include "definitions.h"
 #include "structs.h"
 #include "helpfunctions.h"
 #include <TimeLib.h> //for teensy rtc 
 #include "comms.h"
+#include "display.h"
 
 #include "ADS1X15.h"
 
@@ -22,12 +22,6 @@ Tennsy Pin, Pin Name, Connected to
 
 
 
-
-
-
-
-
-
 void readADS();
 void readADC();
 void failChecks();
@@ -70,6 +64,9 @@ void setup()
   digitalWrite(PIN_LATCH_ENABLE,HIGH); //latch on
   pinMode(PIN_MODE_SWITCH, INPUT_PULLUP);
   
+  
+  display_init();
+
   delay(2000);
   Serial.println("Wait finished. Booting..");
 
@@ -184,7 +181,11 @@ void loop() {
 
   leds();
 
-
+  static unsigned long last_display_update=0;
+  if (loopmillis - last_display_update > DISPLAYUPDATEPERIOD) {
+    last_display_update=loopmillis;
+    display_test();
+  }
 }