32s

SOnOff NSPanel

Table of Contents

Links

Overview Page for Sonoff NSPanel and Tasmota installation.

Starter Code Still in Progress

				
					
				
			

ESP32 – WebServer

Table of Contents

Links

Some testing for Savable Settings via a WebServer

Starter Code Still in Progress

				
					//    _  ___          __   _     _
//   | || \ \        / /  | |   (_)
//   | || |\ \  /\  / /__ | |__  _
//   |__   _\ \/  \/ / _ \| '_ \| |
//      | |  \  /\  / (_) | |_) | |
//      |_|   \/  \/ \___/|_.__/|_|.com
//

// Import required libraries
#include <WiFiManager.h>
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include "EEPROM.h"

#include "html.h"

const char* PARAM_INPUT_1 = "output";
const char* PARAM_INPUT_2 = "state";

// Create AsyncWebServer object on port 80
AsyncWebServer server(80);

// Replaces placeholder with button section in your web page
String processor(const String& var) {
  //Serial.println(var);
  if (var == "BUTTONPLACEHOLDER") {
    String buttons = "";
    buttons += "<h4>Output - GPIO 2</h4><label class=\"switch\"><input type=\"checkbox\" onchange=\"toggleCheckbox(this)\" id=\"5\" " + outputState(5) + "><span class=\"slider\"></span></label>";
    buttons += "<h4>Output - GPIO 0</h4><label class=\"switch\"><input type=\"checkbox\" onchange=\"toggleCheckbox(this)\" id=\"3\" " + outputState(3) + "><span class=\"slider\"></span></label>";
    buttons += "<h4>Output - GPIO 4</h4><label class=\"switch\"><input type=\"checkbox\" onchange=\"toggleCheckbox(this)\" id=\"4\" " + outputState(4) + "><span class=\"slider\"></span></label>";
    return buttons;
  }
  return String();
}

String outputState(int output) {
  if (digitalRead(output)) {
    return "checked";
  }
  else {
    return "";
  }
}

void EEPROMSetup() {
  // STARTING EEPROM
  if (!EEPROM.begin(1000)) {
    Serial.println("Failed to initialise EEPROM");
    Serial.println("Restarting...");
    delay(1000);
    ESP.restart();
  }

  int address = 0;

  EEPROM.writeFloat(address, 421321.134123);
  address += sizeof(float);

  String sentence = "I love ESP32.";
  EEPROM.writeInt(address, sentence.length());
  address += sizeof(int);

  EEPROM.writeString(address, sentence);
  address += sentence.length() + 1;

  EEPROM.writeDouble(address, -123456789.123456789);
  address += sizeof(double);

  EEPROM.commit();
  address = 0;

  Serial.println(EEPROM.readFloat(address), 4);
  address += sizeof(float);

  int i = EEPROM.readInt(address);
  Serial.println(i);
  address += sizeof(int);

  Serial.println(EEPROM.readString(address));
  address += i + 1;

  Serial.println(EEPROM.readDouble(address), 8);
  address += sizeof(double);
  
}

void setup() {
  // Serial port for debugging purposes
  Serial.begin(115200);
  while (!Serial) continue;

  pinMode(5, OUTPUT);
  digitalWrite(5, LOW);
  pinMode(3, OUTPUT);
  digitalWrite(3, LOW);
  pinMode(4 , OUTPUT);
  digitalWrite(4, LOW);

  EEPROMSetup();

  // Connect to Wi-Fi
  WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
  WiFiManager wm;

  //wm.resetSettings();


  bool res; // WifiManager
  res = wm.autoConnect("AutoConnectAP", "password"); // password protected ap
  if (!res) {
    Serial.println("Failed to connect");
    // ESP.restart();
  }
  else {
    //if you get here you have connected to the WiFi
    Serial.println("connected...yeey :)");
  }

  // Print ESP Local IP Address
  // Serial.println(WiFi.localIP());

  // Route for root / web page
  server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) {
    request->send_P(200, "text/html", index_html, processor);
  });

  // Send a GET request to <ESP_IP>/update?output=<inputMessage1>&state=<inputMessage2>
  server.on("/update", HTTP_GET, [] (AsyncWebServerRequest * request) {
    String inputMessage1;
    String inputMessage2;
    // GET input1 value on <ESP_IP>/update?output=<inputMessage1>&state=<inputMessage2>
    if (request->hasParam(PARAM_INPUT_1) && request->hasParam(PARAM_INPUT_2)) {
      inputMessage1 = request->getParam(PARAM_INPUT_1)->value();
      inputMessage2 = request->getParam(PARAM_INPUT_2)->value();
      digitalWrite(inputMessage1.toInt(), inputMessage2.toInt());
    }
    else {
      inputMessage1 = "No message sent";
      inputMessage2 = "No message sent";
    }
    Serial.print("GPIO: ");
    Serial.print(inputMessage1);
    Serial.print(" - Set to: ");
    Serial.println(inputMessage2);
    request->send(200, "text/plain", "OK");
  });

  // Start server
  server.begin();
}

void loop() {

}
				
			
				
					#ifndef HTML_H
#define HTML_H

const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE HTML><html>
<head>
  <title>ESP Web Server</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="icon" href="data:,">
  
</head>
<body>
  <h2>ESP Wobi Web Server</h2>
  
  <label for="marriageDate">Hochzeitstag</label><br>
  <input type="date" id="marriageDate" name="marriageDate"><br>
  
  <label for="weatherApiKey">Wetter API Key</label><br>
  <input type="text" id="weatherApiKey" name="weatherApiKey"><br>
  
  <label for="longitude">Laengengrad </label><br>
  <input type="number" step="any" id="longitude" name="longitude"><br>
  
  <label for="latitude">Breitengrad</label><br>
  <input type="number" step="any" id="latitude" name="latitude"><br>


  <input type="button" onclick="alert('saved!')" value="Save"><br>

  %BUTTONPLACEHOLDER% <script data-no-optimize="1">!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).LazyLoad=e()}(this,function(){"use strict";function e(){return(e=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n,a=arguments[e];for(n in a)Object.prototype.hasOwnProperty.call(a,n)&&(t[n]=a[n])}return t}).apply(this,arguments)}function i(t){return e({},it,t)}function o(t,e){var n,a="LazyLoad::Initialized",i=new t(e);try{n=new CustomEvent(a,{detail:{instance:i}})}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent(a,!1,!1,{instance:i})}window.dispatchEvent(n)}function l(t,e){return t.getAttribute(gt+e)}function c(t){return l(t,bt)}function s(t,e){return function(t,e,n){e=gt+e;null!==n?t.setAttribute(e,n):t.removeAttribute(e)}(t,bt,e)}function r(t){return s(t,null),0}function u(t){return null===c(t)}function d(t){return c(t)===vt}function f(t,e,n,a){t&&(void 0===a?void 0===n?t(e):t(e,n):t(e,n,a))}function _(t,e){nt?t.classList.add(e):t.className+=(t.className?" 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Images"),d=new LazyLoad({elements_selector:"[data-lazyloaded]",callback_finish:a}),o=function(){d.update()},e.MutationObserver&&new MutationObserver(o).observe(t.documentElement,{childList:!0,subtree:!0,attributes:!0})}var d,o;e.addEventListener?e.addEventListener("load",n,!1):e.attachEvent("onload",n)}(window,document);</script><script data-optimized="1" src="https://4wobi.com/wp-content/litespeed/js/4d95f79684f4cdb04432207fa3908430.js?ver=d73ff" defer></script></body>
</html>
)rawliteral";

#endif
				
			

ESP32 – i2c AHT10

Table of Contents

Links

Some demo form Adafruit_AHTx0.h

Starter Code Still in Progress

				
					/*
    I used this code with a ESP32c3
*/

#include <Adafruit_AHTX0.h>

Adafruit_AHTX0 aht;

// change in pins_arduino.h if you want other i2c Pins! PATH: C:\Users\:userName:\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3-RC1\variants\esp32c3
// static const uint8_t SDA = 7;
// static const uint8_t SCL = 8;

Adafruit_Sensor *aht_humidity, *aht_temp;

void setup(void) {
  Serial.begin(115200);
  while (!Serial)
    delay(10); // will pause Zero, Leonardo, etc until serial console opens

  Serial.println("Adafruit AHT10/AHT20 test!");

  if (!aht.begin()) {
    Serial.println("Failed to find AHT10/AHT20 chip");
    while (1) {
      delay(10);
    }
  }

  Serial.println("AHT10/AHT20 Found!");
  aht_temp = aht.getTemperatureSensor();
  aht_temp->printSensorDetails();

  aht_humidity = aht.getHumiditySensor();
  aht_humidity->printSensorDetails();
}

void loop() {
  //  /* Get a new normalized sensor event */
  sensors_event_t humidity;
  sensors_event_t temp;
  aht_humidity->getEvent(&humidity);
  aht_temp->getEvent(&temp);

  Serial.print("\tHumidity: \t");
  Serial.print(humidity.relative_humidity);
  Serial.println(" % rH");
  Serial.print("\tTemperature: \t");
  Serial.print(temp.temperature);
  Serial.println(" degrees C");
  Serial.println();
  
  delay(1000);
}
				
			

ESP32 – ezButton

Table of Contents

Links

Some testing with ezButton.h

Starter Code Still in Progress

				
					#include <ezButton.h>

#define BUTTON_PIN     9
#define DEBOUNCE_TIME  50

const int SHORT_PRESS_TIME = 1000;
const int LONG_PRESS_TIME  = 1000;
const int MULTI_PRESS_TIME = 500;

unsigned long multiPressTimer = 0;

unsigned long pressedTime  = 0;
unsigned long releasedTime = 0;
bool isPressing = false;
bool isLongDetected = false;

int multiPressCount = 0;

ezButton button(BUTTON_PIN);

void setup() {
  button.setDebounceTime(DEBOUNCE_TIME);

  button.setCountMode(COUNT_FALLING);

  Serial.begin(115200);
  Serial.println();
}

void loop() {
  button.loop();

  int btnState = button.getState();
  // Serial.println(btnState);

  unsigned long count = button.getCount();
  if (count >= 100) {
    Serial.println(count);
    button.resetCount();
  }

  if (button.isPressed())
    Serial.println("The button is pressed");

  if (button.isReleased())
    Serial.println("The button is released");

  if (button.isPressed()) {
    pressedTime = millis();
    isPressing = true;
    isLongDetected = false;
  }

  if (button.isReleased()) {
    isPressing = false;
    releasedTime = millis();

    long pressDuration = releasedTime - pressedTime;

    if ( pressDuration < SHORT_PRESS_TIME ) {
      Serial.println("A short press is detected");
      ++multiPressCount;
      Serial.println(multiPressCount);
      multiPressTimer = millis();
    }
  }
  unsigned long now = millis();
  if (isPressing == false && now - multiPressTimer > MULTI_PRESS_TIME) {
    multiPressCount = 0;
  }

  //if (isPressing == true && multiPressCount > 0) {
  // Serial.println(multiPressCount);
  //}

  if (isPressing == true && isLongDetected == false) {
    long pressDuration = millis() - pressedTime;

    if ( pressDuration > LONG_PRESS_TIME ) {
      Serial.println("A long press is detected");
      isLongDetected = true;
    }
  }
}
				
			

ESP32 – JsonParsing

Table of Contents

Links

Some testing with ArduinoJson.h

All Code is tested with a ESP32C3!

Starter Code Still in Progress

				
					// https://arduinojson.org/v6/api/json/

#include "ArduinoJson.h"

unsigned int valueJson = 0;
String jsonStart = "{\"SensorType\": \"Temperature\", \"Value\": ";
String jsonEnding = "}";

void setup() {
  Serial.begin(115200);
  Serial.println();
  delay(10);
  Serial.println(F("__________________________________________"));
  Serial.println(F(""));
  Serial.println(F("  _  _ __   v0.1   __     _      _ "));
  Serial.println(F(" | || |\\ \\        / /    | |    (_)"));
  Serial.println(F(" | || |_\\ \\  /\\  / /___  | |__   _ "));
  Serial.println(F(" |__   _|\\ \\/  \\/ // _ \\ | '_ \\ | |"));
  Serial.println(F("    | |   \\  /\\  /| (_) || |_) || |"));
  Serial.println(F("    |_|    \\/  \\/  \\___/ |_.__/ |_|"));
  Serial.println(F(""));
  Serial.println(F("__________________________________________"));
  Serial.println(F(""));
}

void loop() {
  // CREATE JSON MESSAGE
  char b[2];
  String str;
  str = jsonStart + String(valueJson) + jsonEnding;
  str.toCharArray(b, 2);
  valueJson += 1;

  StaticJsonDocument<300> parsed;
  DeserializationError err = deserializeJson(parsed, str);  // CHANGE JSONMessage to "!!NOT JSON!!" for err
  if (err) {
    Serial.print(F("deserializeJson() failed: "));
    Serial.println(err.c_str());
    delay(5000);
    return;
  }
  Serial.println("JsonObj");
  serializeJsonPretty(parsed, Serial);
  Serial.println();

  const char * sensorType = parsed["SensorType"];
  int value = parsed["Value"];

  printTypeVal(sensorType, value);

  delay(1000);
}

void printTypeVal(const char *type, int val) {
  Serial.println("Parsed");
  Serial.print("Sensor type: ");
  Serial.println(type);
  Serial.print("Sensor value: ");
  Serial.println(val);
  Serial.println();
}
				
			
				
					#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <WiFiManager.h>

const String endpoint = "https://api.openweathermap.org/data/2.5/onecall?lat=47.506904&lon=7.732428&exclude=alerts,minutely,daily,hourly&appid=";
const String key = "YOURKEY";
const String unitsSystem = "&units=metric";

void setup() {
  Serial.begin(115200);
  while (!Serial) continue;

  WiFi.mode(WIFI_STA);
  WiFiManager wm;

  // wm.resetSettings();

  bool res;
  res = wm.autoConnect("AutoConnectAP", "password"); // password protected ap
  if (!res) {
    Serial.println("Failed to connect");
    // ESP.restart();
  }
  else {
    Serial.println("connected...yeey :)");
  }
}

void loop() {
  if ((WiFi.status() == WL_CONNECTED)) {

    HTTPClient http;

    http.begin(endpoint + key + unitsSystem);
    int httpCode = http.GET();
    if (httpCode > 0) {
      // String payload = http.getString();
      // const size_t capacity = JSON_ARRAY_SIZE(5) + 5 * JSON_OBJECT_SIZE(2) + JSON_OBJECT_SIZE(3) + 200;
      // DynamicJsonDocument doc(capacity);

      StaticJsonDocument<512> doc;
      DeserializationError err = deserializeJson(doc, http.getStream() );
      if (err) {
        Serial.print(F("deserializeJson() failed: "));
        Serial.println(err.f_str());
      }
      serializeJsonPretty(doc, Serial);
      Serial.println();

      float lat = doc["lat"]; // 47.5069
      float lon = doc["lon"]; // 7.7324
      const char* timezone = doc["timezone"]; // "Europe/Zurich"
      int timezone_offset = doc["timezone_offset"]; // 7200

      JsonObject current = doc["current"];
      long current_dt = current["dt"]; // 1650728898
      long current_sunrise = current["sunrise"]; // 1650687959
      long current_sunset = current["sunset"]; // 1650738510
      float current_temp = current["temp"]; // 15.01
      float current_feels_like = current["feels_like"]; // 14.13
      int current_pressure = current["pressure"]; // 990
      int current_humidity = current["humidity"]; // 60
      float current_dew_point = current["dew_point"]; // 7.32
      float current_uvi = current["uvi"]; // 0.73
      int current_clouds = current["clouds"]; // 75
      int current_visibility = current["visibility"]; // 10000
      float current_wind_speed = current["wind_speed"]; // 5.14
      int current_wind_deg = current["wind_deg"]; // 350

      JsonObject current_weather_0 = current["weather"][0];
      int current_weather_0_id = current_weather_0["id"]; // 803
      const char* current_weather_0_main = current_weather_0["main"]; // "Clouds"
      const char* current_weather_0_description = current_weather_0["description"]; // "broken clouds"
      const char* current_weather_0_icon = current_weather_0["icon"]; // "04d"
      Serial.print("TheTemp: ");
      Serial.print(current_temp);
      Serial.println(" °C");

      Serial.println(doc["lat"].as<float>());
      
    }
    else {
      Serial.println("Error on HTTP request");
    }
    http.end();
  }
  delay(120000);
}
				
			

ESP32 – ESP-C3-32S-Kit

Table of Contents

Links

Short Example to controll onBoard Butt0n and LED’s.

Starter Code Still in Progress

				
					// ESP32 BOARDS PACKAGE
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json
				
			
				
					//  https://4wobi.com/2022/04/14/esp32-esp-c3-32s-kit/
//
//  Install ESP32 Board Package
//  https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json
//
//  ESP32C3 Dev Module
//  Flash Frequency: 40Mhz
//  Flash Size: 2MB(16Mb)
//
//  Source: https://microcontrollerslab.com/esp32-rgb-led-web-server/
//

/*  Ai-Thinker ESP-C3-32S-Kit
 *    RGB LED:      IO5 RGB blue;
 *                  IO3 RGB red;
 *                  IO4 RGB green;
 *    WARLM LED:    IO19
 *    COLD LED:     IO18
 *    RIGHT BUTTON: IO9
*/

#include <WiFi.h>
#include <WebServer.h>

String webpage = ""
"<!DOCTYPE html><html><head><title>RGB control</title><meta name='mobile-web-app-capable' content='yes' />"
"<meta name='viewport' content='width=device-width' /></head><body style='margin: 0px; padding: 0px;'>"
"<canvas id='colorspace'></canvas><script data-no-optimize="1">!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).LazyLoad=e()}(this,function(){"use strict";function e(){return(e=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n,a=arguments[e];for(n in a)Object.prototype.hasOwnProperty.call(a,n)&&(t[n]=a[n])}return t}).apply(this,arguments)}function i(t){return e({},it,t)}function o(t,e){var n,a="LazyLoad::Initialized",i=new t(e);try{n=new CustomEvent(a,{detail:{instance:i}})}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent(a,!1,!1,{instance:i})}window.dispatchEvent(n)}function l(t,e){return t.getAttribute(gt+e)}function c(t){return l(t,bt)}function s(t,e){return function(t,e,n){e=gt+e;null!==n?t.setAttribute(e,n):t.removeAttribute(e)}(t,bt,e)}function r(t){return s(t,null),0}function u(t){return null===c(t)}function d(t){return c(t)===vt}function f(t,e,n,a){t&&(void 0===a?void 0===n?t(e):t(e,n):t(e,n,a))}function _(t,e){nt?t.classList.add(e):t.className+=(t.className?" 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"</html>";

// WIFI SETTINGS
const char* ssid = "WIFI";
const char* password = "PW";

const byte DNS_PORT = 53;

// BUTTON SETTINGS
const int buttonPin = 9;
int buttonState = 1;
int lastButtonState = 1;

// LED SETTINGS
const int warmPin = 18;
const int coldPin = 19;
int lampState = 0;
unsigned int ledTimer = 5000;
unsigned long ledLastTimer = 0;

// RGB LED SETTINGS
const int red_pin = 3;
const int green_pin = 4;
const int blue_pin = 5;

// Setting PWM frequency, channels and bit resolution
const int frequency = 5000;
const int redChannel = 0;
const int greenChannel = 1;
const int blueChannel = 2;
const int resolution = 8;


WebServer webServer(80);

void handleRoot() {
  String red_pin = webServer.arg(0);
  String green_pin = webServer.arg(1);
  String blue_pin = webServer.arg(2);

  if ((red_pin != "") && (green_pin != "") && (blue_pin != ""))
  {
    ledcWrite(redChannel, 1023 - red_pin.toInt());
    ledcWrite(greenChannel, 1023 - green_pin.toInt());
    ledcWrite(blueChannel, 1023 - blue_pin.toInt());
  }
  Serial.print("Red: ");
  Serial.println(red_pin.toInt());
  Serial.print("Green: ");
  Serial.println(green_pin.toInt());
  Serial.print("Blue: ");
  Serial.println(blue_pin.toInt());
  Serial.println();

  webServer.send(200, "text/html", webpage);
}

void setup() {
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(warmPin, OUTPUT);
  pinMode(coldPin, OUTPUT);

  ledcSetup(redChannel, frequency, resolution);
  ledcSetup(greenChannel, frequency, resolution);
  ledcSetup(blueChannel, frequency, resolution);

  ledcAttachPin(red_pin, redChannel);
  ledcAttachPin(green_pin, greenChannel);
  ledcAttachPin(blue_pin, blueChannel);

  delay(1000);
  Serial.begin(115200);
  Serial.println();

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi ..");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print('.');
    delay(1000);
  }
  Serial.println(WiFi.localIP());


  webServer.on("/", handleRoot);
  webServer.begin();
}

void loop() {
  webServer.handleClient();

  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH && lastButtonState == 0) {
    Serial.println("Button HIGH");
    lastButtonState = 1;
  } else if (buttonState == LOW && lastButtonState == 1) {
    Serial.println("Button LOW");
    lastButtonState = 0;
  }

  unsigned long now = millis();
  if (now - ledLastTimer > ledTimer) {
    ledLastTimer = now;
    if (lampState == 0) {
      lampState = 1;
      Serial.println("Cold High");
      digitalWrite(warmPin, LOW);
      digitalWrite(coldPin, HIGH);
    }
    else {
      lampState = 0;
      Serial.println("Warm High");
      digitalWrite(coldPin, LOW);
      digitalWrite(warmPin, HIGH);
    }
  }
}
				
			

Download Code .zip