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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// 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

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