M5Stamp C3 Mateを試してみました【Arduino使用】

#include <Adafruit_NeoPixel.h>

#define LED_PIN 2

#define COLOR_REPEAT 2

// create a pixel strand with 1 pixel on PIN_NEOPIXEL
Adafruit_NeoPixel pixels(1, LED_PIN);

uint8_t color = 0, count = 0;
uint32_t colors[] = {pixels.Color(125, 0, 0), pixels.Color(0, 125, 0), pixels.Color(0, 0, 125), pixels.Color(125, 125, 125)};
const uint8_t COLORS_LEN = (uint8_t)(sizeof(colors) / sizeof(colors[0]));

void setup() {
  pixels.begin();  // initialize the pixel
}

void loop() {
  pixels.setPixelColor(0, colors[color]);
  pixels.show();
  
  delay(1000);
  
  pixels.clear();
  pixels.show();
  
  delay(1000);
  
  count++;

  if(count >= COLOR_REPEAT) {
    count = 0;
    color++;
    if(color >= COLORS_LEN) {
      color = 0;
    }
  }
}

#include <Adafruit_NeoPixel.h>

#define LED_PIN 2
#define MAX_BRIGHTNESS 255

Adafruit_NeoPixel pixels(1, LED_PIN);

int rgbValues[] = {MAX_BRIGHTNESS, 0, 0}; // 0=Red, 1=Green and 2=Blue
int upIndex = 0, downIndex = 1;

void setup()
{
  pixels.begin(); // initialize the pixel
}

void loop()
{
  rgbValues[upIndex] += 1;
  rgbValues[downIndex] -= 1;

  if (rgbValues[upIndex] > MAX_BRIGHTNESS)
  {
    rgbValues[upIndex] = MAX_BRIGHTNESS;
    upIndex = upIndex + 1;

    if (upIndex > 2)
    {
      upIndex = 0;
    }
  }

  if (rgbValues[downIndex] < 0)
  {
    rgbValues[downIndex] = 0;
    downIndex = downIndex + 1;

    if (downIndex > 2)
    {
      downIndex = 0;
    }
  }

  pixels.setPixelColor(0, pixels.Color(MAX_BRIGHTNESS - rgbValues[0], MAX_BRIGHTNESS - rgbValues[1], MAX_BRIGHTNESS - rgbValues[2]));
  pixels.show();

  delay(5);
}

#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#include <Adafruit_NeoPixel.h>

const char* ssid = "........";
const char* password = "........";

WebServer server(80);

#define LED_PIN 2
Adafruit_NeoPixel pixels(1, LED_PIN);

void led_on() {
  pixels.setPixelColor(0, pixels.Color(125, 0, 0));
  pixels.show();
}

void led_off() {
  pixels.clear();
  pixels.show();  
}

void handleRoot() {
  led_on();
  server.send(200, "text/plain", "hello from esp32!");
  led_off();
}

void handleNotFound() {
  led_on();
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET) ? "GET" : "POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  for (uint8_t i = 0; i < server.args(); i++) {
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);
  led_off();
}

void setup(void) {
  pixels.begin();
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  Serial.println("");

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  if (MDNS.begin("esp32")) {
    Serial.println("MDNS responder started");
  }

  server.on("/", handleRoot);

  server.on("/inline", []() {
    server.send(200, "text/plain", "this works as well");
  });

  server.onNotFound(handleNotFound);

  server.begin();
  Serial.println("HTTP server started");
}

void loop(void) {
  server.handleClient();
  delay(2);//allow the cpu to switch to other tasks
}