1、编译、下载examples\i2c\i2c_tools例程 2、正确连接i2c设备 这里连接0.96吋 oled,也是比较常用的一个i2c设备,连接在gpio21和gpio22上。 3、从终端进入串口命令行 在终端输入idf.py -p com6 monitor进入串口,会打印如下命令提示: 可以看到i2c相关的命令有6个,输入help还可以查看命令的用法; 命令中的[]是可选...
用过linux的朋友都很熟悉这几个命令,这个linux的i2c-tools 一样,这个i2c-tools默认使用gpio18 和gpio19.可以使用i2cconfig 修改i2c配置。 我在gpio18 和gpio19 上接了一个oled ssd1603,ssd1603默认地址是0x3c,执行i2cdetcet命令 esp32> i2cdetect 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- --...
Start a Wi-Fi connection i2c_tools_wifi_connect() or use an existing one Run a web server i2c_tools_ws_server or use an existing web server with websocket support Register i2c_tools handlers ( web page & ws handlers) i2c_tools_register_uri_handlers(httpd_handle_t server) Go to the dev...
===|Steps to Use i2c-tools on ESP32|||1. Try'help', check all supported commands||2. Try'i2cconfig'to configure your I2C bus||3. Try'i2cdetect'to scan devices on the bus||4. Try'i2cget'to get the content of specific register||5. Try'i2cset'tosetthe value of specific register...
前言:在上文中聊了i2c-tools,主要使用命令行,本文使用代码驱动设备。本文以驱动oled展开,关于oled的详细说明,可查看一文彻底了解SSD1306驱动0.96寸OLED,在这里只聊esp32的i2c如何使用。 1、初始化(1)配置i2c:指定i2c的引脚、模式、速率等;(2)安装i2c驱动:设
I have found some issue with finding i2c device on the bus. The i2c device is connected to the esp32 on address 0x17. But when I do the i2cdetect using the i2c_tools example in the esp-idf folder, I get into issues. The output has some UU UU values as shown below, which I do...
● I2C:SDA和SCL引脚用于I2C通信。● 串行通信(UART):该模块上有两个UART串行接口。使用这些引脚,您可以在两个设备之间传输高达5Mbps的信息。 UART0还具有CTS和RTS控制。● PWM:几乎所有ESP32输入/输出引脚都可用于PWM(脉冲宽度调制)。使用这些引脚可以控制电机、LED灯和颜色等。ESP32模块模式ESP32芯片有5种模式...
My hardware is working OK, as if I build and run the example i2c_tools, I can send these commands without a problem, But I am unable to understand what to get out of the i2c_tools example so I can fit them inside my project. Thanks, Regards,che...
建议阅读ESP32 的 I2C 驱动程序编程指南 I2C 时钟速度由 I2C Master(主机)设置 I2C 的 SDA 和 SCL 管脚必须上拉(软件上拉或硬件上拉) 4.2 配置示例: I2C 主机配置示例 int i2c_master_port = 0; i2c_config_t conf = { .mode = I2C_MODE_MASTER, ...
I2C (i-square-c) is an acronym for “Inter-Integrated-Circuit” which was originally created by Philips Semiconductors (now NXP) back in 1982. The I2C is a multi-master, multi-slave, synchronous, bidirectional, half-duplex serial communication bus. It’s widely used for attaching lower-speed...