Raspberry Pi Pico Wを試してみました【Arduino使用】

#ifndef STASSID
#define STASSID "your-ssid"
#define STAPSK "your-password"
#endif

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

#ifndef STASSID
#define STASSID "PicoW"
#define STAPSK "0123456789"
#endif

const char* ssid = STASSID;
const char* password = STAPSK;

const IPAddress ip(192, 168, 40, 1);
const IPAddress subnet(255, 255, 255, 0);

WebServer server(80);

const int led = LED_BUILTIN;

void handleRoot() {
  digitalWrite(led, 1);
  server.send(200, "text/plain", "hello from pico w!\r\n");
  digitalWrite(led, 0);
}

void handleNotFound() {
  digitalWrite(led, 1);
  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);
  digitalWrite(led, 0);
}

void setup(void) {
  pinMode(led, OUTPUT);
  digitalWrite(led, 0);
  Serial.begin(115200);

  WiFi.mode(WIFI_AP);
  WiFi.softAPConfig(ip, ip, subnet);
  WiFi.begin(ssid, password);

  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

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

  server.on("/", handleRoot);

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

  server.on("/gif", []() {
    static const uint8_t gif[] = {
      0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x10, 0x00, 0x10, 0x00, 0x80, 0x01,
      0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x2c, 0x00, 0x00, 0x00, 0x00,
      0x10, 0x00, 0x10, 0x00, 0x00, 0x02, 0x19, 0x8c, 0x8f, 0xa9, 0xcb, 0x9d,
      0x00, 0x5f, 0x74, 0xb4, 0x56, 0xb0, 0xb0, 0xd2, 0xf2, 0x35, 0x1e, 0x4c,
      0x0c, 0x24, 0x5a, 0xe6, 0x89, 0xa6, 0x4d, 0x01, 0x00, 0x3b
    };
    char gif_colored[sizeof(gif)];
    memcpy_P(gif_colored, gif, sizeof(gif));
    // Set the background to a random set of colors
    gif_colored[16] = millis() % 256;
    gif_colored[17] = millis() % 256;
    gif_colored[18] = millis() % 256;
    server.send(200, "image/gif", gif_colored, sizeof(gif_colored));
  });

  server.onNotFound(handleNotFound);

  /////////////////////////////////////////////////////////
  // Hook examples

  server.addHook([](const String & method, const String & url, WiFiClient * client, WebServer::ContentTypeFunction contentType) {
    (void)method;       // GET, PUT, ...
    (void)url;          // example: /root/myfile.html
    (void)client;       // the webserver tcp client connection
    (void)contentType;  // contentType(".html") => "text/html"
    Serial.printf("A useless web hook has passed\n");
    return WebServer::CLIENT_REQUEST_CAN_CONTINUE;
  });

  server.addHook([](const String&, const String & url, WiFiClient*, WebServer::ContentTypeFunction) {
    if (url.startsWith("/fail")) {
      Serial.printf("An always failing web hook has been triggered\n");
      return WebServer::CLIENT_MUST_STOP;
    }
    return WebServer::CLIENT_REQUEST_CAN_CONTINUE;
  });

  server.addHook([](const String&, const String & url, WiFiClient * client, WebServer::ContentTypeFunction) {
    if (url.startsWith("/dump")) {
      Serial.printf("The dumper web hook is on the run\n");

      // Here the request is not interpreted, so we cannot for sure
      // swallow the exact amount matching the full request+content,
      // hence the tcp connection cannot be handled anymore by the
      auto last = millis();
      while ((millis() - last) < 500) {
        char buf[32];
        size_t len = client->read((uint8_t*)buf, sizeof(buf));
        if (len > 0) {
          Serial.printf("(<%d> chars)", (int)len);
          Serial.write(buf, len);
          last = millis();
        }
      }
      // Two choices: return MUST STOP and webserver will close it
      //                       (we already have the example with '/fail' hook)
      // or                  IS GIVEN and webserver will forget it
      // trying with IS GIVEN and storing it on a dumb WiFiClient.
      // check the client connection: it should not immediately be closed
      // (make another '/dump' one to close the first)
      Serial.printf("\nTelling server to forget this connection\n");
      static WiFiClient forgetme = *client;  // stop previous one if present and transfer client refcounter
      return WebServer::CLIENT_IS_GIVEN;
    }
    return WebServer::CLIENT_REQUEST_CAN_CONTINUE;
  });

  // Hook examples
  /////////////////////////////////////////////////////////

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

void loop(void) {
  server.handleClient();
  MDNS.update();
}

#include <WiFi.h>
#include <Wire.h>
#include <U8g2lib.h>

// WiFi接続情報
const char *ssid = "your-ssid";
const char *password = "your-password";

// 曜日表示文字
const char *weekChar[7] = { "日", "月", "火", "水", "木", "金", "土" };

// U8g2コンストラクタ
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/U8X8_PIN_NONE);

// NTPによる時刻同期関数
bool setClock() {
  // 日本標準時をセット
  setenv("TZ", "JST-9", 1);
  tzset();

  NTP.begin("ntp.nict.jp", "time.google.com");
  return NTP.waitSet();
}

void setup() {
  Serial.begin(115200);

  Wire.begin();
  Wire.setClock(400000);

  u8g2.begin();  // OLED初期化
  u8g2.setContrast(1);

  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_crox1hb_tf);
  u8g2.drawStr(0, 17, "WiFi connecting...");
  u8g2.sendBuffer();

  // WiFi接続
  WiFi.begin(ssid, password);
  if (WiFi.status() != WL_CONNECTED) {
    u8g2.clearBuffer();
    u8g2.drawStr(0, 17, "WiFi connection failed");
    u8g2.sendBuffer();

    // Serial.println("WiFi connection failed");

    for (;;)
      yield();
  }

  // NTP時刻同期
  if (setClock()) {
    // 時刻取得失敗時は停止
    u8g2.clearBuffer();
    u8g2.drawStr(0, 17, "Failed to obtain time");
    u8g2.sendBuffer();

    // Serial.println("Failed to obtain time");
    for (;;)
      yield();
  }

  // WiFi切断
  WiFi.disconnect(true);
}

void loop() {
  static time_t now;
  static struct tm *timeinfo;
  static int lastSec = -1;
  static char buf[20];

  // 現在時を取得
  time(&now);
  timeinfo = localtime(&now);
  
  // 時刻が変わっているか判定
  if (lastSec != timeinfo->tm_sec) {
    lastSec = timeinfo->tm_sec;
    // Serial.print(asctime(timeinfo));

    // 時刻が変わった時に描画する
    u8g2.clearBuffer();
    // 時計用フォントをセット
    u8g2.setFont(u8g2_font_crox5h_tn);
    // 時分秒の描画
    sprintf(buf, "%2d", timeinfo->tm_hour);
    u8g2.drawStr(0, 17, buf);
    sprintf(buf, "%02d", timeinfo->tm_min);
    u8g2.drawStr(45, 17, buf);
    sprintf(buf, "%02d", timeinfo->tm_sec);
    u8g2.drawStr(87, 17, buf);

    // 年月日の描画
    sprintf(buf, "%4d", timeinfo->tm_year + 1900);
    u8g2.drawStr(0, 40, buf);
    sprintf(buf, "%2d", timeinfo->tm_mon + 1);
    u8g2.drawStr(0, 64, buf);
    sprintf(buf, "%2d", timeinfo->tm_mday);
    u8g2.drawStr(48, 64, buf);

    // 曜日()の描画
    u8g2.setFont(u8g2_font_crox4h_tf);
    u8g2.drawStr(96, 60, "(");
    u8g2.drawStr(122, 60, ")");

    // 年月日時分秒の描画
    // 日本語フォントをセット
    u8g2.setFont(u8g2_font_b16_b_t_japanese1);
    u8g2.drawUTF8(28, 15, "時");
    u8g2.drawUTF8(71, 15, "分");
    u8g2.drawUTF8(113, 15, "秒");
    u8g2.drawUTF8(54, 38, "年");
    u8g2.drawUTF8(28, 62, "月");
    u8g2.drawUTF8(76, 62, "日");
    u8g2.drawUTF8(104, 62, weekChar[timeinfo->tm_wday]);

    u8g2.sendBuffer();
  }

  yield();
}