Show BT icon on countdown

Author: samuelbles07

src/AgOledDisplay.cpp

@@ -19,10 +19,14 @@ static unsigned char OFFLINE_BITS[] = {
     0xE6, 0x00, 0xFE, 0x1F, 0xFE, 0x1F, 0xE6, 0x00, 0x62, 0x00,
     0x30, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
 };
-// {
-//   0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x60, 0x00, 0x62, 0x00, 0xE2, 0x00,
-//   0xFE, 0x1F, 0xFE, 0x1F, 0xE2, 0x00, 0x62, 0x00, 0x60, 0x00, 0x30, 0x00,
-//   0x00, 0x00, 0x00, 0x00, };
+
+static unsigned char BLUETOOTH_BITS[] = {
+  0x00, 0x02, 0x00, 0x00, 0x06, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x3a, 0x00, 0x60, 
+  0x72, 0x00, 0xe0, 0x72, 0x00, 0xc0, 0x3b, 0x00, 0x80, 0x1f, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x0f, 
+  0x00, 0x80, 0x1f, 0x00, 0xc0, 0x3b, 0x00, 0xe0, 0x72, 0x00, 0x60, 0x72, 0x00, 0x00, 0x3a, 0x00, 
+  0x00, 0x1e, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x00
+};
+
 /**
  * @brief Show dashboard temperature and humdity
  *
@@ -270,6 +274,28 @@ void OledDisplay::setText(const char *line1, const char *line2,
   }
 }
 
+void OledDisplay::showWiFiProvisioning(bool firstRun, int countdown) {
+if (firstRun) {
+    DISP()->clearBuffer();
+    DISP()->setFont(u8g2_font_t0_16_tf);
+    DISP()->drawStr(1, 25, "to WiFi hotspot:");
+    DISP()->drawStr(1, 40, "\"airgradient-");
+    DISP()->drawStr(1, 55, (ag->deviceId() + "\"").c_str());
+    DISP()->drawXBM(108, 44, 20, 20, BLUETOOTH_BITS);
+    DISP()->sendBuffer();
+  }
+
+  // Now just update countdown area
+  char buf[16];
+  snprintf(buf, sizeof(buf), "%ds to connect", countdown);
+  DISP()->setDrawColor(0);  // erase previous text
+  DISP()->drawBox(0, 0, 128, 16); // clear top region
+  DISP()->setDrawColor(1);  // draw new text in white
+  DISP()->setFont(u8g2_font_t0_16_tf);
+  DISP()->drawStr(1, 10, buf);
+  DISP()->sendBuffer();
+}
+
 /**
  * @brief Update dashboard content
  *

src/AgOledDisplay.h

@@ -48,6 +48,7 @@ class OledDisplay : public PrintLog {
   void setText(String &line1, String &line2, String &line3, String &line4);
   void setText(const char *line1, const char *line2, const char *line3,
                const char *line4);
+  void showWiFiProvisioning(bool firstRun, int countdown);
   void showDashboard(void);
   void showDashboard(DashboardStatus status);
   void setBrightness(int percent);

src/AgStateMachine.cpp

@@ -494,13 +494,10 @@ void StateMachine::displayHandle(AgStateMachineState state) {
       if (ag->isBasic()) {
         String ssid = "\"airgradient-" + ag->deviceId() + "\"    " +
                       String(wifiConnectCountDown) + String("s");
-        disp.setText("Connect tohotspot:", ssid.c_str(), "");
+        disp.setText("Connect to hotspot:", ssid.c_str(), "");
       } else {
-        String line1 = String(wifiConnectCountDown) + "s to connect";
-        String line2 = "to WiFi hotspot:";
-        String line3 = "\"airgradient-";
-        String line4 = ag->deviceId() + "\"";
-        disp.setText(line1, line2, line3, line4);
+        // NOTE: This bool is hardcoded!
+        disp.showWiFiProvisioning((wifiConnectCountDown == 180), wifiConnectCountDown);
       }
       wifiConnectCountDown--;
     }