前言:
大家好, 歡迎收看本週的Weekend project with Stonez56。
本周要進行的是 App Inventor 第7集 - 語音控制ESP32 - IOT 專案必備程式庫範例
本週要來示範如何設計App inventor 2 語音控制 APP, 只要加上我之前介紹的IoT專用必備程式庫, (請參考下方的#27連結), 為了讓初學者更好上手, 本次採用沒有放入MQTT的程式庫, 讓範例更簡單一點. 我們先來看一下實際的操作影片. https://www.youtube.com/watch?v=senjdb-cREY&t=40s
整個範例做完,你就可以以語音來控制遠端的 ESP32 了. 本次範例, 除了可以控制ESP32上的LED開 & 關, 也可以控制伺服馬達的開 & 關, 這集也加上了多語功能的控制, 中文和英文都可以喔. 範例中也設定了法文, 西班牙文, 和日文,有興趣的朋友可以自行加上這些語言的控制程式碼.
#27 AsyncWifimanager ElegantOTA ESP32 (WiFi 密碼管理+ WiFi 韌體更新)
https://stonez56.blogspot.com/2021/07/asyncwifimanager-elegantota-esp32-wifi.html
請先到上方的連結, copy 所有的程式嗎, 再複製到 Arduino 編輯程式中存檔.
也要記得把 esp32_servo.h 檔案給儲存下來.
好, 那我們就開始吧今天的練習吧~
Source code:
37_vioceControl_ESP32_ECBv1.ino
#include "esp32_servo.h" //------->
#define myLED 2 //------->
#include <AsyncElegantOTA.h>
const char *FOTA_USERNAME = "un";
const char *FOTA_PASSWORD = "pw";
/****************************************************************************************************************************
Async_AutoConnect_ESP32_minimal.ino
For ESP8266 / ESP32 boards
Built by Khoi Hoang https://github.com/khoih-prog/ESPAsync_WiFiManager
Licensed under MIT license
*****************************************************************************************************************************/
#if !(defined(ESP32))
#error This code is intended to run on the ESP32 platform! Please check your Tools->Board setting.
#endif
#include <ESPAsync_WiFiManager.h> //https://github.com/khoih-prog/ESPAsync_WiFiManager
AsyncWebServer webServer(80);
#define DEVICE_NAME "VoiceCommandESP32" //------->
DNSServer dnsServer;
void setup()
{
pinMode(myLED, OUTPUT); //------->
servo_setup(); //------->
// put your setup code here, to run once:
Serial.begin(115200);
while (!Serial)
;
delay(200);
Serial.println("\nStarting Async_AutoConnect_ESP32_minimal on " + String(ARDUINO_BOARD));
Serial.println(ESP_ASYNC_WIFIMANAGER_VERSION);
ESPAsync_WiFiManager ESPAsync_wifiManager(&webServer, &dnsServer, DEVICE_NAME); //------->
//ESPAsync_wifiManager.resetSettings(); //reset saved settings
//ESPAsync_wifiManager.setAPStaticIPConfig(IPAddress(192, 168, 132, 1), IPAddress(192, 168, 132, 1), IPAddress(255, 255, 255, 0));
ESPAsync_wifiManager.autoConnect();
if (WiFi.status() == WL_CONNECTED)
{
Serial.print(DEVICE_NAME); //------->
Serial.print(F(" Connected. Local IP: "));
Serial.println(WiFi.localIP());
}
else
{
Serial.println(ESPAsync_wifiManager.getStatus(WiFi.status()));
}
webServer.on("/", HTTP_GET, [](AsyncWebServerRequest *request)
{ request->send(200, "text/plain", "Hi! I am ESP32S. access to URL /update to update firmware"); }); //------->
webServer.onNotFound([](AsyncWebServerRequest *request)
{ request->send(404, "text/plain", "Page not found!"); }); //------->
// move the motors //-------> NEW ADDITION Codes
webServer.on("/go", HTTP_GET, [](AsyncWebServerRequest *request)
{
String motor = "";
String rotation = "";
// Get input value from URL/go?motor=msg1&rotation=msg2
if(request->hasParam("motor") && request->hasParam("rotation")){
if(request->hasParam("motor")){
AsyncWebParameter* p = request->getParam("motor");
Serial.print(p->name().c_str());
Serial.println(p->value().c_str());
motor = p->value();
}
if(request->hasParam("rotation")){
AsyncWebParameter* p = request->getParam("rotation");
Serial.print(p->name().c_str());
Serial.println(p->value().c_str());
rotation = p->value();
}
if(rotation == "0"){
digitalWrite(myLED, LOW);
}else if(rotation == "1"){
digitalWrite(myLED, HIGH);
}else{
servo_spin(rotation.toInt());
}
request->send(200, "text/plain", "Command executed!");
}else{
request->send(200, "text/plain", "Error command!");
Serial.println("Error commands!");
}
});
//AsyncElegantOTA.begin(&webServer); // Start ElegantOTA WITHOUT username & password
AsyncElegantOTA.begin(&webServer, FOTA_USERNAME, FOTA_PASSWORD); // Start ElegantOTA with username & password
webServer.begin();
Serial.println("HTTP server started");
}
void loop() {
}
esp32_servo.h
// ESP32Servo by John K. Bennett,autoConnectKevin Harrington Version 0.11.0
// https://github.com/jkb-git/ESP32Servo/blob/master/src/ESP32_Servo.h
#include <analogWrite.h>
#include <ESP32PWM.h>
#include <ESP32Servo.h>
#include <ESP32Tone.h>
/** Define SERVO pins **/
#define SERVO_PIN2 13 //
Servo SERVO_LR; //left right
const int MAX_ANGLE = 170; //keep servo at minimum range
const int MIN_ANGLE = 10;
int SERVO_LR_POS = 90;
void servo_setup()
{
SERVO_LR.setPeriodHertz(50); // standard 50 hz servo
// http://yehnan.blogspot.com/2013/09/arduinotower-pro-sg90.html
SERVO_LR.attach(SERVO_PIN2, 500, 2400);
//init position 90 degree for LR & UD
SERVO_LR.write(SERVO_LR_POS);
}
void servo_spin(int angle){
// motor protection
if(angle > MAX_ANGLE) angle = MAX_ANGLE;
if(angle < MIN_ANGLE) angle = MIN_ANGLE;
SERVO_LR.write(angle);
}
