Work in progress Scroll pHAT HD Support

Adafruit_IS31FL3731.cpp

@@ -19,6 +19,15 @@
 
 Adafruit_IS31FL3731::Adafruit_IS31FL3731(uint8_t width, uint8_t height)
     : Adafruit_GFX(width, height) {}
+
+/**************************************************************************/
+/*!
+    @brief Constructor for Scroll pHAT HD version (17x7 LEDs)
+*/
+/**************************************************************************/	
+
+Adafruit_IS31FL3731_ScrPhHD::Adafruit_IS31FL3731_ScrPhHD(void) : Adafruit_IS31FL3731(17, 7) {
+}
 
 /**************************************************************************/
 /*!
@@ -154,6 +163,52 @@ void Adafruit_IS31FL3731_Wing::drawPixel(int16_t x, int16_t y, uint16_t color) {
   return;
 }
 
+/**************************************************************************/
+/*!
+    @brief Adafruit GFX low level accesssor - sets a 8-bit PWM pixel value
+    handles rotation and pixel arrangement, unlike setLEDPWM
+    @param x The x position, starting with 0 for left-most side
+    @param y The y position, starting with 0 for top-most side
+    @param color Despite being a 16-bit value, takes 0 (off) to 255 (max on)
+*/
+/**************************************************************************/
+void Adafruit_IS31FL3731_ScrPhHD::drawPixel(int16_t x, int16_t y, uint16_t color) {
+ // check rotation, move pixel around if necessary
+  switch (getRotation()) {
+  case 0:
+	y = 7 - y - 1;
+	break;
+  case 1:
+    _swap_int16_t(x, y);
+    x = 17 - x - 1;
+    break;
+  case 2:
+    x = 17 - x - 1;
+    y = 7 - y - 1;
+    break;
+  case 3:
+    _swap_int16_t(x, y);
+    y = 9 - y - 1;
+    break;
+  }
+
+  if ((x < 0) || (x >= 18) || (y < 0) || (y >= 7)) return;
+
+  if (x > 8) {
+    x = x - 8;
+    y = 6 - (y + 8);
+  } else {
+    x = 8 - x;
+  }
+
+  _swap_int16_t(x, y);
+
+  if (color > 255) color = 255; // PWM 8bit max
+
+  setLEDPWM(x + y*16, color, _frame);
+  return;
+}
+
 /**************************************************************************/
 /*!
     @brief Adafruit GFX low level accesssor - sets a 8-bit PWM pixel value

Adafruit_IS31FL3731.h

@@ -62,4 +62,10 @@ class Adafruit_IS31FL3731_Wing : public Adafruit_IS31FL3731 {
   void drawPixel(int16_t x, int16_t y, uint16_t color);
 };
 
+class Adafruit_IS31FL3731_ScrPhHD : public Adafruit_IS31FL3731 {
+ public:
+  Adafruit_IS31FL3731_ScrPhHD(void);
+  void drawPixel(int16_t x, int16_t y, uint16_t color);
+};
+
 #endif

examples/ESP32_BT_text_badge/ESP32_BT_text_badge.ino

@@ -0,0 +1,149 @@
+// Load libraries
+#include "BluetoothSerial.h"
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_IS31FL3731.h>
+
+// This is probably not done the best way it can but im not great at this, it does work though
+
+// Type txt + message in a bluetooth serial monitor app to update the display
+// Type br + a number between 0-255 to update the brightness
+
+String Dname = "ESP32 - Badge"; // Bluetooth device name
+
+// Check if Bluetooth configs are enabled
+#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
+#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
+#endif
+
+Adafruit_IS31FL3731_ScrPhHD matrix = Adafruit_IS31FL3731_ScrPhHD();
+
+// Bluetooth Serial object
+BluetoothSerial SerialBT;  
+
+// Handle received and sent messages
+int Brightness = 255;
+String txt = "BOB";
+String message = "";
+String message2;
+String message3;
+String message4;
+String SerialD;
+bool swirl = false;
+bool loopt = false;
+// The lookup table to make the brightness changes be more visible
+uint8_t sweep[] = {10, 20, 30, 40, 60, 80, 100, 150, 200, 255, 255, 200, 150, 100, 80, 60, 40, 30, 20, 10};
+
+static const uint8_t PROGMEM
+  smile_bmp[] =
+  { B00111100,
+    B01000010,
+    B10100101,
+    B10000001,
+    B10100101,
+    B10011001,
+    B01000010,
+    B00111100 },
+  frown_bmp[] =
+  { B00111100,
+    B01000010,
+    B10100101,
+    B10000001,
+    B10011001,
+    B10100101,
+    B01000010,
+    B00111100 },
+  smile_love_bmp[] =
+  {   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+  0x00, 0x00, 0x00, 0x00, 0x00 };
+
+void setup() {
+  Serial.begin(115200);
+  Wire.begin(13,12);
+    if (! matrix.begin()) {
+    Serial.println("IS31 not found");
+    while (1); // loop
+  }
+  Serial.println("IS31 Found!");
+  SerialBT.begin(Dname);
+  Serial.print("The device started, now you can pair with bluetooth, Device name: ");
+  Serial.println(Dname);
+}
+
+void loop() {
+  // Read received messages
+  unsigned long currentMillis = millis();
+  if (SerialBT.available()){
+    SerialD = SerialBT.readString();
+    Serial.println(SerialD);
+      message = SerialD;
+      message3 = SerialD;
+  }
+
+    if(swirl) {
+    for (uint8_t incr = 0; incr < 20; incr++)
+      for (uint8_t x = 0; x < 17; x++)
+        for (uint8_t y = 0; y < 9; y++)
+          matrix.drawPixel(x, y, sweep[(x+y+incr)%20]);
+    //delay(20);
+    }
+
+  // Check received message and control output accordingly
+if (message3.length() > 1){
+message3.remove(0,4);
+
+if (message.indexOf("smile") >=0 ) {
+  matrix.clear();
+  matrix.drawBitmap(4, 0, smile_bmp, 8, 8, 255);
+} else if (message.indexOf("br") >=0 ) {
+ message4 = message;
+ message4.remove(0,2);
+ String b = message4;
+ Brightness = b.toInt();
+ message2 = "";
+ Serial.println("Brightness set to: " + b);
+ SerialBT.println("Brightness set to: " + b);
+} else if (message.indexOf("txt") >=0 ){
+    swirl = false;
+    message4 = message;
+    message4.remove(0,4);
+    message4.trim();
+    txt = message4;
+    Serial.println("Display message set to: " + txt);
+    SerialBT.println("Display message set to: " + txt);
+} else if (message.indexOf("swirl") >=0 ){
+    loopt = false;
+    swirl = true;
+    Serial.println("Display set to swirl");
+    SerialBT.println("Display set to swirl");
+}
+}
+
+  matrix.setRotation(0);
+  matrix.setTextSize(0);
+  matrix.setTextWrap(false);  // we dont want text to wrap so it scrolls nicely
+  matrix.setTextColor(Brightness);
+
+  if (message2 == txt) {} else {
+  message2 = txt;
+  matrix.clear();
+  matrix.setCursor(0,0);
+  if (message2.length() >= 4) {
+    loopt = true;
+  } else {
+    loopt = false;
+    matrix.print(message2);
+  }
+  }
+
+if (loopt == true) {
+  int leng = message2.length() * 7;
+      for (int8_t x=18; x>=-leng; x--) {
+      matrix.clear();
+      matrix.setCursor(x,0);
+      matrix.print(message2);
+      delay(150);
+      }
+}
+
+}