在ESP32中,已经带了硬件的I2C,因此只需要调用相关的API接口,就可以实现I2C通讯。 I2C API接口函数如下: I2C 配置函数:i2c_param_config(); I2C 功能安装使能函数:i2c_driver_install(); 创建I2C 连接函数:i2c_cmd_link_create(); 写启动信号到缓存函数:i2c_master_start(); 写一个字节的命令放到到缓存函数:...
in pixels#defineSCREEN_HEIGHT32// OLED display height, in pixels// WiFi credentialsconstchar*ssid="xxxx";constchar*password="xxxx";// Define I2C Pins for ESP32-CAM#defineI2C_SDA14#defineI2C_SCL15// Declaration for
#define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 32 // OLED display height, in pixels // WiFi credentials const char* ssid = "xxxx"; const char* password = "xxxx"; // Define I2C Pins for ESP32-CAM #define I2C_SDA 14 #define I2C_SCL 15 // Declarat...
Re: configuring the i2c pins on esp32-c6-devkit-m1 PostbyESP_Sprite»Fri Apr 05, 2024 1:25 am No. You can use any GPIO that is not otherwise used (e.g. by the internal flash chip, or by something your code already uses). ...
ESP32是一款低功耗的32位微控制器,具有Wi-Fi和蓝牙功能,非常适合物联网应用。在ESP32进入深度睡眠模式时,大部分模块会被关闭以节省电力,但某些外设如I2C(Inter-Integrated Circuit)可以配置为在深度睡眠模式下唤醒设备。 基础概念 深度睡眠模式:ESP32的一种低功耗模式,此时CPU停止工作,大部分外设关闭,仅保留RTC(实...
I apologized if this is a dumb question, I am new to ESP32 and not from EE background. I would like to know where are the I2C pins on the ESP32-PICO-KIT. I cannot find much information on this board and I can't see any labels for the SDA and SCL pins in the documentation on...
I was hoping to use I2C but also use another toggle switch to put the ESP32 into sleep mode by grounding either pin 21 or 22 and doing a digital read on these pins. Is this possbile? also I'd like to wake up the ESP32 once the toggle has released ground. I'd use another pin ...
That is odd, I2C is tested and tried as it's in a lot of projects. Are you sure you're measuring the correct pins? If it wasn't the correct pins, I'm not sure what could explain for that stop condition (with SDA). Also, there's nothing else running on the ESP, except to ...
I am using ESP-32-WROOM-32 with a RTC DS3231 module. I have connected SDA & SCL pins of RTC DS3231 with ESP32 D22 and D23 pins. Also, the VCC of RTC is connected to 3V3 of ESP32 and the GND of RTC is also connected to GND of ESP32 .RTC module is having attached battery ...
Hardware: Board: ESP32 Dev Module Core Installation/update date: 11/jul/2017 IDE name: Arduino IDE Flash Frequency: 40Mhz Upload Speed: 115200 Description: I am not able to generate the I2C clock. I have an ST microelectronics accelerato...