if (lastWidth != currentWidth) { document.getElementById ('oscilloscope').width = document.getElementById ('vSens').clientWidth; lastWidth = currentWidth; } } 1. 2. 3. 4. 5. 6. 第二处是示波器窗口绘制主函数: function d
1.esp32开发板 esp32-DevKitC-32E 引脚定义: esp32-DevKitC-32E引脚定义 2.tft显示屏 240*320的SPI显示屏,驱动芯片:ili9341 tft显示屏 tft显示屏 引脚定义: tft显示屏引脚定义 3.引脚连接 二、开发环境 开发环境我直接使用ArduinoIDE对esp32进行开发,微软商店和官网均有提供下载,安装完毕后在主界面选择工具-...
location=101210111&key=6676a2a9955e46d2903d85d50e4df07d&gzip=n"; // urllongintwendu=0;//温度数据DynamicJsonDocumentdoc(1024);// 获取天气voidgetWeather(){HTTPClient http;http.begin(weatherUrl);inthttpCode=http.GET();if(httpCode>0){// httpCode will be negative on errorSerial.printf("HTTP...
function setpath() { var default_path = document.getElementById("newfile").files[0].name; document.getElementById("filepath").value = default_path; } function send_wifi() { var input_ssid = document.getElementById("wifi").value; var input_code = document.getElementById("code").value...
有个神奇的地方,ESP的芯片有专门控制LED的外设,又因为控制LED就是控制的PWM,舵机的控制也是PWM,所以很自然的就会想到用LED的外设去控制舵机。 可以参考官方的文档 LED 控制 (LEDC) 外设主要用于控制 LED 的强度,但也可用于生成 PWM 信号以用于其他目的。它有 16 个通道,可以生成独立的波形,例如用于驱动 RGB LED...
If you are a distributor or otherwise interested in ordering a large quantity of parts, the minimum order quantities for parts direct from Espressif are listed in the Espressif Products Ordering Information document. IDENTIFIER SELLER PRICE PER CHIP SELLER NOTES ESP32-D0WDQ6 AnalogLamb 3.00Electro...
https://esp32io.com/tutorials/esp32-lm35-temperature-sensor#defineADC_VREF_mV 3300.0// in millivolt#defineADC_RESOLUTION 4096.0// 定义温度 https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-devkitc.html//int tempPin = IO36;DynamicJsonDocumentdoc(1024...
DynamicJsonDocument doc(1400); DeserializationError error = deserializeJson(doc, line); if (error) { Serial.println("Deserialize JSON failed"); return; } Serial.println("Deserialize JSON success"); strcpy(weatherdata.city, doc["results"][0]["location"]["name"].as<const char*>()); ...
DynamicJsonDocument doc(1400); DeserializationError error = deserializeJson(doc, line); if (error) { Serial.println("Deserialize JSON failed"); return; } Serial.println("Deserialize JSON success"); strcpy(weatherdata.city, doc["results"][0]["location"]["name"].as<const char*>()); ...
This document introduces the ESP32 AT commands, explains how to use them, and provides examples of several common AT commands. •Espressif Products Ordering Information 8.2 Must-Have Resources Here are the ESP32-related must-have resources. •ESP32 BBS This is an Engineer-to-Engineer (E2E)...