LCDGFX LCD display driver  1.0.5
This library is developed to control SSD1306/SSD1325/SSD1327/SSD1331/SSD1351/IL9163/PCD8554 RGB i2c/spi LED displays
esp32_i2c.h
1 /*
2  MIT License
3 
4  Copyright (c) 2018-2019, Alexey Dynda
5 
6  Permission is hereby granted, free of charge, to any person obtaining a copy
7  of this software and associated documentation files (the "Software"), to deal
8  in the Software without restriction, including without limitation the rights
9  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  copies of the Software, and to permit persons to whom the Software is
11  furnished to do so, subject to the following conditions:
12 
13  The above copyright notice and this permission notice shall be included in all
14  copies or substantial portions of the Software.
15 
16  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  SOFTWARE.
23 */
24 
25 /*
26  * @file lcd_hal/esp/esp32_i2c.h This is ESP32 I2C implementation
27  */
28 
29 #ifndef _SSD1306V2_ESP_ESP32_I2C_H_
30 #define _SSD1306V2_ESP_ESP32_I2C_H_
31 
32 #if defined(CONFIG_ESP32_I2C_AVAILABLE) && defined(CONFIG_ESP32_I2C_ENABLE)
33 
34 #include "driver/i2c.h"
35 
39 class EspI2c
40 {
41 public:
51  EspI2c(int8_t busId = -1, uint8_t sa = 0x00,
52  int8_t scl = -1, int8_t sda = -1,
53  uint32_t frequency = 400000);
54  ~EspI2c();
55 
59  void begin();
60 
64  void end();
65 
69  void start();
70 
74  void stop();
75 
80  void send(uint8_t data);
81 
91  void sendBuffer(const uint8_t *buffer, uint16_t size);
92 
100  void setAddr(uint8_t addr) { m_sa = addr; }
101 
102 private:
103  int8_t m_busId;
104  uint8_t m_sa;
105  int8_t m_scl;
106  int8_t m_sda;
107  uint32_t m_frequency;
108  i2c_cmd_handle_t m_cmd_handle;
109 };
110 
111 #endif
112 
113 #endif
114 
void stop()
void begin()
void setAddr(uint8_t addr)
Definition: esp32_i2c.h:100
void send(uint8_t data)
void start()
EspI2c(int8_t busId=-1, uint8_t sa=0x00, int8_t scl=-1, int8_t sda=-1, uint32_t frequency=400000)
void end()
void sendBuffer(const uint8_t *buffer, uint16_t size)
Sends bytes to SSD1306 device.