This library allows you to communicate with I2C / TWI devices. On the Arduino boards with the R3 layout (1.0 pinout), the SDA (data line) and SCL (clock line) are on the pin headers close to the AREF pin. The Arduino Due has two I2C / TWI interfaces SDA1 and SCL1 are near to ...
i2c_master_write_byte(i2c_cmd, addr, true);//IIC写入寄存器地址 i2c_master_write_byte(i2c_cmd, d, true);//IIC写入数据 i2c_master_stop(i2c_cmd);//IIC停止信号发送 i2c_master_cmd_begin(PCA9685_IIC_port, i2c_cmd, 1000 / portTICK_RATE_MS);//IIC命令链表开始执行,等待1000ms超时时间 i2c_...
I2C (Inter-Integrated Circuit) 集成电路总线是I2CBus的简称, 是一种串行通信总线, 使用多主从架构. 飞利浦公司在1980年代为了让主板, 嵌入式系统或手机用以连接低速周边设备而发展. I2C的正确读法为"I-squared-C"。 I2C只使用两条双向漏极开路(Open Drain): 串行数据SDA及串行时钟频率SCL总线, 且利用上拉电阻...
Arduino IDE的示例程序如下,读者可以根据自己的需求进行修改 #include<ESPJarvis.h>//函数定义voidShowSoftwareInfo();voidInitWifi();voidInitHardware();//***用户无线网络设置参数***//constchar*ssid="xxxx";// 无线网络名称constchar*password="xxxx";//无线网络密码//OLED屏设置#define SCREEN_WIDTH 128/...
On the Arduino boards with the R3 layout (1.0 pinout), the SDA (data line) and SCL (clock line) are on the pin headers close to the AREF pin. The Arduino Due has two I2C / TWI interfaces SDA1 and SCL1 are near to the AREF pin and the additional one is on pins 20 and 21. ...
feat(Zigbee): Adding Zigbee Wind speed sensor endpoint by @lboue in #10455 CI & testing test(i2c): Add test to scan bus by @lucasssvaz in #11022 New Contributors @iranl made their first contribution in #11035 @oli-the-kitty made their first contribution in #11064 Full Changelog: 3.2...
I2C clock phase correction in START condition (#8383) MMU functions strict aliasing fixes (#8290) Add FSTools with examples of how to convert between SPIFFS and LittleFS (#7696) Rename esp_yield() to esp_suspend(), update esp_yield() to also call esp_schedule() (#7148) Breaking changes...
· Wire - TWI/I2C总线程序库 · Matrix - LED矩阵控制程序库 · Sprite - LED矩阵图象处理控制程序库 Arduuino复合运算符 += , -= , *= , /= 对一个变量和另一个参数或变量完成一个数学运算。+=(以及其他)可以缩短语法长度。 Syntax语法
SCL --- I2C 时钟线(接A5) (可以看到模块后面有一个U2芯片,就是用来稳压的) 项目之九:综合测试,中文显示 Arduino实验开源代码 /* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百三十六:0.91寸OLED液晶屏显示模块 IIC 12832液晶屏 兼容3.3v-5V 安装库...
I2C 即 InterIntegrated Circuit 串行总线的缩写,是 PHILIPS 公司推出的间串行传输总线。它以 1 根串行数据线(SDA)和 1 根串行时 30、钟线(SCL)实现了双工的同步数据传输。具有接口线少,化,器件封装形式小,通信速率较高等优点。在主从通信中,可以有多个 I2C 总线器件同时接到 I2C 总线上,通过地址来识别通信...