Add power down and display to system test sketch

Author: nseidle

Firmware/Test Sketches/System_Check/Buttons.ino

@@ -0,0 +1,25 @@
+//If we have a power button tap, or if the display is not yet started (no I2C!)
+//then don't display a shutdown screen
+void powerDown(bool displayInfo)
+{
+  //Disable SD card use
+  //endSD(false, false);
+
+  //Prevent other tasks from logging, even if access to the microSD card was denied
+  online.logging = false;
+
+  if (displayInfo == true)
+  {
+    //displayShutdown();
+    //delay(2000);
+  }
+
+  pinMode(pin_powerSenseAndControl, OUTPUT);
+  digitalWrite(pin_powerSenseAndControl, LOW);
+
+  pinMode(pin_powerFastOff, OUTPUT);
+  digitalWrite(pin_powerFastOff, LOW);
+
+  while (1)
+    delay(1);
+}

Firmware/Test Sketches/System_Check/Display.ino

@@ -25,3 +25,56 @@ void beginDisplay()
     }
   }
 }
+
+//Attempt to send to display regardless of its online status
+//The I2C bus may allow it even if bus is misbehaving
+void displayHelloWorld()
+{
+  //if (online.display == true)
+  //{
+    oled.erase();
+
+    uint8_t fontHeight = 15;
+    uint8_t yPos = oled.getHeight() / 2 - fontHeight;
+
+    printTextCenter("Accel", yPos, QW_FONT_8X16, 1, false);  //text, y, font type, kerning, inverted
+    printTextCenter("Failed", yPos + fontHeight, QW_FONT_8X16, 1, false);  //text, y, font type, kerning, inverted
+
+    oled.display();
+
+//    delay(displayTime);
+  //}
+}
+
+//Given text, and location, print text center of the screen
+void printTextCenter(const char *text, uint8_t yPos, QwiicFont & fontType, uint8_t kerning, bool highlight) //text, y, font type, kearning, inverted
+{
+  oled.setFont(fontType);
+  oled.setDrawMode(grROPXOR);
+
+  uint8_t fontWidth = fontType.width;
+  if (fontWidth == 8) fontWidth = 7; //8x16, but widest character is only 7 pixels.
+
+  uint8_t xStart = (oled.getWidth() / 2) - ((strlen(text) * (fontWidth + kerning)) / 2) + 1;
+
+  uint8_t xPos = xStart;
+  for (int x = 0 ; x < strlen(text) ; x++)
+  {
+    oled.setCursor(xPos, yPos);
+    oled.print(text[x]);
+    xPos += fontWidth + kerning;
+  }
+
+  if (highlight) //Draw a box, inverted over text
+  {
+    uint8_t textPixelWidth = strlen(text) * (fontWidth + kerning);
+
+    //Error check
+    int xBoxStart = xStart - 5;
+    if (xBoxStart < 0) xBoxStart = 0;
+    int xBoxEnd = textPixelWidth + 9;
+    if (xBoxEnd > oled.getWidth() - 1) xBoxEnd = oled.getWidth() - 1;
+
+    oled.rectangleFill(xBoxStart, yPos, xBoxEnd, 12, 1); //x, y, width, height, color
+  }
+}

Firmware/Test Sketches/System_Check/System_Check.ino

@@ -147,6 +147,10 @@ float battChangeRate = 0.0;
 //External Display
 //=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 #include <SparkFun_Qwiic_OLED.h> //http://librarymanager/All#SparkFun_Qwiic_Graphic_OLED
+
+#include <res/qw_fnt_5x7.h>
+#include <res/qw_fnt_8x16.h>
+#include <res/qw_fnt_largenum.h>
 //=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 
 //microSD Interface
@@ -175,7 +179,6 @@ uint32_t sdFreeSpaceMB = 0;
 uint32_t sdUsedSpaceMB = 0;
 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 
-
 //Hardware serial and BT buffers
 //=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 HardwareSerial serialGNSS(2); //TX on 17, RX on 16
@@ -190,8 +193,6 @@ unsigned long splashStart = 0; //Controls how long the splash is displayed for.
 
 char platformPrefix[40] = "Surveyor"; //Sets the prefix for broadcast names
 bool zedUartPassed = false; //Goes true during testing if ESP can communicate with ZED over UART
-
-bool i2cBorked = false;
 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 
 void setup()
@@ -244,7 +245,10 @@ void setup()
   Wire.beginTransmission(0x15); //Dummy address
   int endValue = Wire.endTransmission();
   Serial.printf("Response time: %d endValue: %d\n\r", millis() - startTime, endValue);
-  if(endValue == 2) online.i2c = true;
+  if(endValue == 2)
+    online.i2c = true;
+  else if (endValue == 5)
+    Serial.println("It appears something is shorting the I2C lines.");
 
   beginBoard(); //Determine what hardware platform we are running on and check on button
 
@@ -259,6 +263,9 @@ void setup()
 
   beginSD(); //Test if SD is present
 
+  beginDisplay(); //Start display first to be able to display any errors
+  displayHelloWorld(); //Display something, ignore I2C bus status
+  
   menuSystem();
 }
 

Firmware/Test Sketches/System_Check/menuSystem.ino

@@ -143,6 +143,7 @@ void menuSystem()
     Serial.println(F("S) Verbose scan of I2C"));
     Serial.println(F("t) Toggle pin"));
     Serial.println(F("r) Reset"));
+    Serial.println(F("p) Power Down"));
 
     byte incoming = getByteChoice(menuTimeout); //Timeout after x seconds
 
@@ -259,6 +260,12 @@ void menuSystem()
         ESP.restart();
       }
     }
+    else if (incoming == 'p')
+    {
+      Serial.println("Power down");
+
+      powerDown(false); //No display
+    }
     else if (incoming == STATUS_GETBYTE_TIMEOUT)
     {
       //break;