測試 lgc12002 初步ok

xiaolaba

收到了L大送來的禮物. 很潦草地隨便測試一下, 準備繼續改良做玩具, 目的是測試在單電池供電可否運作, 結果是OK. 20mA-40mA, 比較耗電, 不過3.5V-4.2還是正常運作. ARDUINO 已經拆除 5V 穩壓IC, 不需要, 不然更耗電, 原因不詳. 要自行控制寫特殊符號, 例如 r, 口, 等字符, 還沒研究出來. 有空再來.

test lgc12002

接線圖

test lgc12002

接線圖再放大一點, 這樣接, 麵包板最有條理

test lgc12002

測試碼, 抄來的

Arduino skectch

1. #include <PT6961.h>
   
2. 
   
3. // Pin 4 = CS
   
4. // Pin 3 = CLK
   
5. // Pin 2 = DIN
   
6. PT6961 LED(2, 3, 4);
   
7. void setup()
   
8. {
   
9.      LED.initDisplay();
   
10. LED.sendCmd(0x8a); // (_DISPLAY_4_16); // dim LED display 1/4
    
11.      Serial.begin(9600);
    
12. }
    
13. 
    
14. void loop()
    
15. {
    
16.      //count through 0-9,a-f
    
17.      for(int i=0; i<16; i++)
    
18.      {
    
19.           LED.sendDigits(0,0,0,i,0);
    
20.           Serial.println(i);
    
21.           delay(1000);
    
22.      }
    
23. }
    

複製代碼

PT6961.cpp

1. /*
   
2.   PT6961.cpp - Library for communicating with PT6961 LED driver.
   
3.   Created by Garrett Blanton January, 16, 2013.
   
4.   Released into the public domain.
   
5. */
   
6. 
   
7. //0 - A
   
8. //1 - B
   
9. //2 - C
   
10. //3 - D
    
11. //4 - E
    
12. //5 - F
    
13. //6 - G
    
14. //7 - Colon
    
15. 
    
16. #include "Arduino.h"
    
17. #include "PT6961.h"
    
18. 
    
19. PT6961::PT6961(int DIN, int CLK, int CS)
    
20. {
    
21.   pinMode(DIN, OUTPUT);
    
22.   pinMode(CLK, OUTPUT);
    
23.   pinMode(CS, OUTPUT);
    
24.   _DIN = DIN;
    
25.   _CLK = CLK;
    
26.   _CS = CS;
    
27. }
    
28. 
    
29. void PT6961::initDisplay()
    
30. {
    
31.   sendCmd(_DISPLAY_6X12);
    
32.   sendCmd(_AUTO_INCREMENT);
    
33.   initRAM();
    
34.   sendCmd(_DISPLAY_14_16);
    
35. }
    
36. 
    
37. // Initializes RAM to all zeros
    
38. void PT6961::initRAM()
    
39. {
    
40.   //first clear 8 bytes of the display RAM
    
41.   digitalWrite(_CS,LOW);
    
42.   shiftOut(_DIN, _CLK, LSBFIRST, 0xC0);
    
43.   for(int i=0; i<8; i++){
    
44.     shiftOut(_DIN, _CLK, LSBFIRST, 0x00);
    
45.   }
    
46.   digitalWrite(_CS,HIGH);
    
47. }
    
48. 
    
49. // Use to send command based on enumeration
    
50. void PT6961::sendCmd(char cmd)
    
51. {
    
52.   digitalWrite(_CS,LOW);
    
53.   shiftOut(_DIN, _CLK, LSBFIRST, cmd);
    
54.   digitalWrite(_CS,HIGH);  
    
55. }
    
56. 
    
57. void PT6961::sendDigit(char digit, char val)
    
58. {
    
59.   digitalWrite(_CS,LOW);
    
60.   shiftOut(_DIN, _CLK, LSBFIRST, digit);
    
61.   shiftOut(_DIN, _CLK, LSBFIRST, val);
    
62.   digitalWrite(_CS,HIGH);   
    
63. }
    
64. 
    
65. void PT6961::sendNum(int num, char colon)
    
66. {
    
67.   int digit1 = num / 1000;
    
68.   int digit2 = (num % 1000) / 100;
    
69.   int digit3 = (num % 100) / 10;
    
70.   int digit4 = (num % 10);
    
71.   
    
72.   sendDigits(digit1,digit2,digit3,digit4,colon);
    
73. }
    
74. 
    
75. void PT6961::sendDigits(char digit1, char digit2, char digit3, char digit4, char colon)
    
76. {
    
77. 
    
78.   const char DISP[17] = {0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x77, 0x7c, 0x58, 0x5e, 0x79, 0x71, 0x61};
    
79.   
    
80.   digitalWrite(_CS,LOW);
    
81.   shiftOut(_DIN, _CLK, LSBFIRST, 0xC0);
    
82.   
    
83.   if(colon == 1)
    
84.   {
    
85.     shiftOut(_DIN, _CLK, LSBFIRST, DISP[digit1] | 0x80);
    
86.   }
    
87.   else
    
88.   {
    
89.     shiftOut(_DIN, _CLK, LSBFIRST, DISP[digit1]);
    
90.   }
    
91. 
    
92.   shiftOut(_DIN, _CLK, LSBFIRST, 0xC2);
    
93. 
    
94.   if(colon == 1)  
    
95.   {
    
96.     shiftOut(_DIN, _CLK, LSBFIRST, DISP[digit2] | 0x80);
    
97.   }
    
98.   else
    
99.   {
    
100.     shiftOut(_DIN, _CLK, LSBFIRST, DISP[digit2]);
     
101.   }
     
102.   
     
103.   shiftOut(_DIN, _CLK, LSBFIRST, 0xC4);
     
104.   shiftOut(_DIN, _CLK, LSBFIRST, DISP[digit3]);
     
105.   shiftOut(_DIN, _CLK, LSBFIRST, 0xC6);
     
106.   shiftOut(_DIN, _CLK, LSBFIRST, DISP[digit4]);
     
107.   digitalWrite(_CS,HIGH);   
     
108. }

複製代碼

PT6961.h

1. /*
   
2.   PT6961.h - Library for communicating with PT6961 LED driver.
   
3.   Created by Garrett Blanton January, 16, 2013.
   
4.   Released into the public domain.
   
5. */
   
6. 
   
7. #ifndef PT6961_h
   
8. #define PT6961_h
   
9. 
   
10. #include "Arduino.h"
    
11. 
    
12. class PT6961
    
13. {
    
14.   public:
    
15.   
    
16.     PT6961(int DIN, int CLK, int CS);
    
17.     void initDisplay();
    
18.     void initRAM();
    
19.     void sendCmd(char cmd);
    
20.     void sendDigit(char digit, char val);
    
21.     void sendNum(int num, char colon);
    
22.     void sendDigits(char digit1, char digit2, char digit3, char digit4, char colon);
    
23.        
    
24.     const static char _DISPLAY_6X12 = 0x02;
    
25.     const static char _DISPLAY_7X11 = 0x03;
    
26.     const static char _AUTO_INCREMENT = 0x40;
    
27.     const static char _FIXED_ADDRESS = 0x44;
    
28.     const static char _DISPLAY_OFF = 0x80;
    
29.     const static char _DISPLAY_1_16 = 0x88;
    
30.     const static char _DISPLAY_2_16 = 0x89;
    
31.     const static char _DISPLAY_4_16 = 0x8A;
    
32.     const static char _DISPLAY_10_16 = 0x8B;
    
33.     const static char _DISPLAY_11_16 = 0x8C;
    
34.     const static char _DISPLAY_12_16 = 0x8D;
    
35.     const static char _DISPLAY_13_16 = 0x8E;
    
36.     const static char _DISPLAY_14_16 = 0x8F;
    
37.        
    
38.   private:
    
39.   
    
40.         int _DIN;
    
41.     int _CLK;
    
42.     int _CS;
    
43.        
    
44. };
    
45. 
    
46. #endif

複製代碼