serial monitor is as fallows..
WiFi connected
Attempting MQTT connection...connected
Subscribed to: wio_terminal/test/control
Publishing message: Hello from Wio Terminal! Uptime: 5s
Publishing message: Hello from Wio Terminal! Uptime: 10s
--------------------------------------------------------------
#include <rpcWiFi.h>
#include <PubSubClient.h>
// PubSubClient（MQTT通信用 / by Nick O'Leary）
// Wi-Fi設定
const char* ssid = "";
const char* password = "090e219cbdbf5";
// MQTTブローカー設定
const char* mqtt_server = "test.mosquitto.org";
const int mqtt_port = 1883;
// トピック設定（他のユーザーと被らない一意の文字列にしてください）
const char* topic_pub = "wio_terminal/test/status";
const char* topic_sub = "wio_terminal/test/control";
WiFiClient wioClient;
PubSubClient client(wioClient);
unsigned long lastMsg = 0;
// データ受信時のコールバック関数
void callback(char* topic, byte* payload, unsigned int length) {
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
Serial.println();
}
// Wi-FiとMQTTの接続処理
void reconnect() {
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// クライアントIDを一意にするためランダムな値を付与
String clientId = "WioTerminalClient-";
clientId += String(random(0xffff), HEX);
if (client.connect(clientId.c_str())) {
Serial.println("connected");
// 接続成功したらサブスクライブを開始
client.subscribe(topic_sub);
Serial.print("Subscribed to: ");
Serial.println(topic_sub);
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
delay(5000);
}
}
}
void setup() {
Serial.begin(115200);
while(!Serial); // シリアルモニタが開くまで待機
// Wi-Fi接続開始
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("\nWiFi connected");
// MQTTサーバーの設定
client.setServer(mqtt_server, mqtt_port);
client.setCallback(callback);
}
void loop() {
if (!client.connected()) {
reconnect();
}
client.loop(); // MQTTの内部処理（受信用に必須）
// 5秒ごとにデータをパブリッシュ
unsigned long now = millis();
if (now - lastMsg > 5000) {
lastMsg = now;
String msg = "Hello from Wio Terminal! Uptime: " + String(now
/ 1000) + "s";
Serial.print("Publishing message: ");
Serial.println(msg);
client.publish(topic_pub, msg.c_str());
}
}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
まずはwifi-connectから
#include <LGFX_AUTODETECT.hpp>
#include <LovyanGFX.hpp>
#include "rpcWiFi.h"
static LGFX tft;
const char* ssid = "Pikara2-91d8e4";
const char* password = "090e219cbdbf5";
void setup()
{
tft.begin();
digitalWrite(LCD_BACKLIGHT, HIGH);
tft.setRotation(1);
tft.fillScreen(TFT_BLACK);
tft.setTextColor(TFT_WHITE);
tft.setTextSize(2);
tft.println("WiFi connecting...");
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(1000);
WiFi.begin(ssid, password);
int count = 0;
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
tft.print(".");
count++;
if (count > 40)
{
tft.println();
tft.println("WiFi FAILED");
return;
}
}
tft.println();
tft.println("Connected!");
tft.println("IP:");
tft.println(WiFi.localIP());
}
void loop()
{
}
