ESP32C3使用i2c控制ssd1306驱动的128*64屏幕失败，求大佬指教

dangel

之前arduinoUNOR3可以正常使用换到ESP32C3之后就不能用了orz附上代码

1. /**
   
2. * @author dangel
   
3. * @email d_angel5044@outlook.com
   
4. * @create date 2022-04-23 14:32:56
   
5. * @modify date 2022-04-23 14:32:57
   
6. * @desc [description]
   
7. */
   
8. 
   
9. #include <SPI.h>
   
10. #include <Wire.h>
    
11. #include <Adafruit_GFX.h>
    
12. #include <Adafruit_SSD1306.h>
    
13. #include <Adafruit_Sensor.h>
    
14. #include <DHT.h>
    
15. #include <DHT_U.h>
    
16. #include <DS3231.h>
    
17. 
    
18. #define SCREEN_WIDTH  128
    
19. #define SCREEN_HEIGHT 64
    
20. #define OLED_RESET -1
    
21. #define SCREEN_ADDRESS 0x3c
    
22. #define CHAR_WIDTH 16
    
23. #define CHAR_HEIGHT 16
    
24. 
    
25. 
    
26. #define DHTPIN 2
    
27. #define DHTTYPE DHT11
    
28. 
    
29. #define SDA 28
    
30. #define SCL 27
    
31. 
    
32. // #define LedPin 13
    
33. // #define ButtonPin 7
    
34. 
    
35. 
    
36. int16_t POSX = 0;
    
37. int16_t POSY = 0;
    
38. 
    
39. static const uint8_t PROGMEM CHAR_SHIJIAN_32x16[] =
    
40. {
    
41. 0x00,0x08,0x00,0x08,0x7C,0x08,0x44,0x08,0x45,0xFE,0x44,0x08,0x44,0x08,0x7C,0x08,
    
42. 0x44,0x88,0x44,0x48,0x44,0x48,0x44,0x08,0x7C,0x08,0x44,0x08,0x00,0x28,0x00,0x10,//"时"0
    
43. 0x20,0x00,0x13,0xFC,0x10,0x04,0x40,0x04,0x47,0xC4,0x44,0x44,0x44,0x44,0x44,0x44,
    
44. 0x47,0xC4,0x44,0x44,0x44,0x44,0x44,0x44,0x47,0xC4,0x40,0x04,0x40,0x14,0x40,0x08//"间"1
    
45. };
    
46. 
    
47. 
    
48. static const uint8_t PROGMEM CHAR_WENDU_16x16[] =
    
49. {
    
50. 0x00,0x00,0x23,0xF8,0x12,0x08,0x12,0x08,0x83,0xF8,0x42,0x08,0x42,0x08,0x13,0xF8,
    
51. 0x10,0x00,0x27,0xFC,0xE4,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x2F,0xFE,0x00,0x00,//"温"0
    
52. 0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x3F,0xFC,0x22,0x20,0x22,0x20,
    
53. 0x23,0xE0,0x20,0x00,0x2F,0xF0,0x24,0x10,0x42,0x20,0x41,0xC0,0x86,0x30,0x38,0x0E,//"度"1
    
54. };
    
55. 
    
56. static const uint8_t PROGMEM CHAR_SHIDU_16x16[] =
    
57. {
    
58. 0x00,0x00,0x27,0xF8,0x14,0x08,0x14,0x08,0x87,0xF8,0x44,0x08,0x44,0x08,0x17,0xF8,
    
59. 0x11,0x20,0x21,0x20,0xE9,0x24,0x25,0x28,0x23,0x30,0x21,0x20,0x2F,0xFE,0x00,0x00,//"湿"0
    
60. 0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x3F,0xFC,0x22,0x20,0x22,0x20,
    
61. 0x23,0xE0,0x20,0x00,0x2F,0xF0,0x24,0x10,0x42,0x20,0x41,0xC0,0x86,0x30,0x38,0x0E,//"度"1
    
62. };
    
63. 
    
64. Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
    
65. DHT_Unified dht(DHTPIN,DHTTYPE);
    
66. 
    
67. RTClib myRTC;
    
68. 
    
69. uint32_t Sensor_Read_Delay;
    
70. float temperature,humidity;
    
71. uint8_t RENDER_COUNT;
    
72. uint8_t READ_COUNT;
    
73. 
    
74. // bool BUTTON_STATE;
    
75. // bool LED_STATE;
    
76. 
    
77. void Draw_CH(uint8_t* tar_chars,int char_num);
    
78. bool Read_Sensor();
    
79. void Render_sence_1();
    
80. // void Read_Button();
    
81. 
    
82. void setup(){
    
83.     Serial.begin(9600);
    
84. 
    
85.     // pinMode(ButtonPin,INPUT_PULLUP);
    
86.     // pinMode(LedPin,OUTPUT);
    
87.     // LED_STATE = 0;
    
88.     // digitalWrite(LedPin,LED_STATE);
    
89. 
    
90.     //Wire.begin(28,27);
    
91. 
    
92.     if(!display.begin(SSD1306_SWITCHCAPVCC,SCREEN_ADDRESS)){
    
93.         Serial.println(F("SSD1306 allocation failed"));
    
94.     }
    
95.     display.clearDisplay();
    
96.     display.setTextSize(2);
    
97.     display.setTextColor(SSD1306_WHITE);
    
98.     display.setCursor(0,0);
    
99.     display.print(F("START!"));
    
100.     display.display();
     
101.     delay(500);
     
102.     dht.begin();
     
103.     sensor_t sensor;
     
104.     dht.temperature().getSensor(&sensor);
     
105.     Wire.begin();
     
106.     Sensor_Read_Delay = sensor.min_delay/1000;
     
107.     Serial.println(F("START!"));
     
108. }
     
109. 
     
110. void loop() {
     
111.     if(READ_COUNT == 20){
     
112.         Read_Sensor();
     
113.         READ_COUNT = 0;
     
114.     }
     
115. 
     
116.     if(RENDER_COUNT == 10){
     
117.         Render_sence_1();
     
118.         RENDER_COUNT = 0;
     
119.     }
     
120. 
     
121.     // Read_Button();
     
122. 
     
123.     RENDER_COUNT++;
     
124.     READ_COUNT++;
     
125.     delay(50);
     
126. }
     
127. 
     
128. void Render_sence_1(){
     
129. 
     
130.     //RTC part
     
131.     DateTime now = myRTC.now();
     
132. 
     
133.     //Render part
     
134.     POSX = 0;
     
135.     POSY = 0;
     
136.     display.clearDisplay();
     
137. 
     
138.     Draw_CH(CHAR_SHIJIAN_32x16,2);
     
139.     display.setCursor(32,POSY);
     
140.     display.setTextSize(1);
     
141. 
     
142.     //Render date
     
143.     display.print(now.year());
     
144.     display.print(F("."));
     
145.     if(now.month()<10)display.print(F("0"));
     
146.     display.print(now.month());
     
147.     display.print(F("."));
     
148.     if(now.day()<10)display.print(F("0"));
     
149.     display.print(now.day());
     
150. 
     
151.     //Render time
     
152.     display.setCursor(32,8);
     
153.     if(now.hour()>12){
     
154.         display.print(F("PM"));
     
155.         if(now.hour()-12<10)display.print(F("0"));
     
156.         display.print(now.hour()-12);
     
157.     }else{
     
158.         display.print(F("AM"));
     
159.         if(now.hour()<10)display.print(F("0"));
     
160.         display.print(now.hour());
     
161.     }
     
162.     display.print(F(":"));
     
163.     if(now.minute()<10)display.print(F("0"));
     
164.     display.print(now.minute());
     
165.     display.print(F(":"));
     
166.     if(now.second()<10)display.print(F("0"));
     
167.     display.print(now.second());
     
168. 
     
169.     POSY += CHAR_HEIGHT;
     
170.     display.setTextSize(2);
     
171.     Draw_CH(CHAR_WENDU_16x16,2);
     
172.     display.setCursor(32,POSY);
     
173.     display.print(temperature);display.print(F("C"));
     
174.     POSY += CHAR_HEIGHT;
     
175. 
     
176.     Draw_CH(CHAR_SHIDU_16x16,2);
     
177.     display.setCursor(32,POSY);
     
178.     display.print(humidity);display.print(F("%"));
     
179.     POSY += CHAR_HEIGHT;
     
180. 
     
181.     display.display();
     
182. 
     
183. 
     
184. };
     
185. 
     
186. void Draw_CH(const uint8_t* tar_chars,int char_num){
     
187.     uint8_t t[32];
     
188.     for (int i = 0; i < char_num; i++)
     
189.     {
     
190.         for (int j = 0; j<32; j++)
     
191.         {
     
192.             t[j] = pgm_read_byte(&tar_chars[j+32*i]);
     
193.         }
     
194.         display.drawBitmap(POSX,POSY,t,CHAR_WIDTH,CHAR_HEIGHT,WHITE);
     
195.         POSX += CHAR_WIDTH;
     
196.         if((i+1)%8==0){
     
197.             POSX = 0;
     
198.             POSY += CHAR_HEIGHT;
     
199.         }
     
200.     }
     
201.     // POSY += CHAR_HEIGHT;
     
202.     POSX = 0;
     
203. }
     
204. 
     
205. // void Read_Button(){
     
206. //     BUTTON_STATE = digitalRead(ButtonPin);
     
207. //     if(BUTTON_STATE == LOW){
     
208. //         delay(20);
     
209. //         if(BUTTON_STATE == LOW){
     
210. //             LED_STATE = !LED_STATE;
     
211. //             digitalWrite(LedPin,LED_STATE);
     
212. //             Serial.println("click");
     
213. //         }
     
214. //     }
     
215. //     delay(200);
     
216. // }
     
217. 
     
218. bool Read_Sensor(){
     
219.     sensors_event_t event;
     
220.     dht.temperature().getEvent(&event);
     
221.     if(isnan(event.temperature)){
     
222.         temperature = 99.99;
     
223.         return 0;
     
224.     }else{
     
225.         temperature = event.temperature;
     
226.     }
     
227.     dht.humidity().getEvent(&event);
     
228.     if(isnan(event.relative_humidity)){
     
229.         humidity = 99.99;
     
230.         return 0;
     
231.     }else{
     
232.         humidity = event.relative_humidity;
     
233.     }
     
234.     return 1;
     
235. }

复制代码

何锦昊

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define display_SCREEN_WIDTH 128
#define display_SCREEN_HEIGHT 64
#define display_OLED_RESET     4
Adafruit_SSD1306 display(display_SCREEN_WIDTH, display_SCREEN_HEIGHT, &Wire, display_OLED_RESET);

void setup(){
  Serial.begin(9600);
  while (!(display.begin(SSD1306_SWITCHCAPVCC,0x3C))) {
    Serial.println("没有搜索到SSD1306");
    delay(500);
  }
}

void loop(){

}

adafruit的库中的显示屏不要“#define SDA 28#define SCL 27”

XlinliY.Zhang

Wire.setPins()