nextion

lib/ITEADLIB_Arduino_Nextion-master/examples/CompProgressBar/CompProgressBar_v0_32.ino

@@ -0,0 +1,78 @@
+/**
+ * @example CompProgressBar.ino
+ *
+ * @par How to Use
+ * This example shows that,when the "btn_up" component on the Nextion screen is released,
+ * the value of progress bar component will plus 5,when the "btn_down" component released ,the value of 
+ * progress bar component will minus 5 every time.
+ *
+ * @author  Wu Pengfei (email:<pengfei.wu@itead.cc>)
+ * @date    2015/7/10
+ * @updated 2016/12/25 bring HMI up to v0.32 to avoid too old issues
+ * @convert by Patrick Martin, no other changes made
+ * @copyright 
+ * Copyright (C) 2014-2015 ITEAD Intelligent Systems Co., Ltd. \n
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+
+#include "Nextion.h"
+
+NexProgressBar j0  = NexProgressBar(0, 3, "j0");
+NexButton btn_up   = NexButton(0, 1, "btn_up");
+NexButton btn_down = NexButton(0, 2, "btn_down");
+
+NexTouch *nex_listen_list[] = 
+{
+    &btn_up,
+    &btn_down,
+    NULL
+};
+
+void buttonUpPopCallback(void *ptr)
+{
+    uint32_t number = 0;
+    dbSerialPrintln("buttonUpPopCallback");
+
+    j0.getValue(&number);
+
+    number += 5;
+    if (number >= 100)
+    {
+        number = 100;
+    }
+    
+    j0.setValue(number);
+}
+
+void buttonDownPopCallback(void *ptr)
+{
+    uint32_t number = 0;
+    dbSerialPrintln("buttonDownPopCallback");
+
+    j0.getValue(&number);
+
+    if (number >= 5)
+    {
+        number -= 5;
+    }
+    
+    j0.setValue(number);
+}
+
+void setup(void)
+{
+    nexInit();
+    btn_up.attachPop(buttonUpPopCallback);
+    btn_down.attachPop(buttonDownPopCallback);
+    dbSerialPrintln("setup done");
+}
+
+void loop(void)
+{
+    nexLoop(nex_listen_list);
+}
+