Documentation
For Arduino users
CompGauge_v0_32.ino
1 
21 #include "Nextion.h"
22 
23 NexGauge pointer = NexGauge(0, 1, "pointer");
24 NexButton btn_up = NexButton(0, 2, "btn_up");
25 NexButton btn_down = NexButton(0, 3, "btn_down");
26 
27 NexTouch *nex_listen_list[] =
28 {
29  &btn_up,
30  &btn_down,
31  NULL
32 };
33 
34 void buttonUpPopCallback(void *ptr)
35 {
36  uint32_t number = 0;
37  dbSerialPrintln("buttonUpPopCallback");
38 
39  pointer.getValue(&number);
40 
41  number += 5;
42  if (number >= 360)
43  {
44  number = 0;
45  }
46 
47  pointer.setValue(number);
48 }
49 void buttonDownPopCallback(void *ptr)
50 {
51  uint32_t number = 0;
52  dbSerialPrintln("buttonDownPopCallback");
53 
54  pointer.getValue(&number);
55 
56  if (number >= 5)
57  {
58  number -= 5;
59  }
60 
61  pointer.setValue(number);
62 }
63 
64 
65 
66 void setup(void)
67 {
68  nexInit();
69  btn_up.attachPop(buttonUpPopCallback);
70  btn_down.attachPop(buttonDownPopCallback);
71  dbSerialPrintln("setup done");
72 }
73 
74 void loop(void)
75 {
76  nexLoop(nex_listen_list);
77 }
78 
NexGauge component.
Definition: NexGauge.h:30
void nexLoop(NexTouch *nex_listen_list[])
Listen touch event and calling callbacks attached before.
void attachPop(NexTouchEventCb pop, void *ptr=NULL)
Attach an callback function of pop touch event.
Definition: NexTouch.cpp:39
bool setValue(uint32_t number)
Set the value of gauge.
Definition: NexGauge.cpp:32
bool nexInit(void)
Init Nextion.
NexButton component.
Definition: NexButton.h:35
bool getValue(uint32_t *number)
Get the value of gauge.
Definition: NexGauge.cpp:23
The header file including all other header files provided by this library.
Father class of the components with touch events.
Definition: NexTouch.h:53