Hello, Im trying to upload this sketch to ESP8266. Get Json data, and print to LCD display but, it doesnt work as the sketch. It just loop printing in serial monitor rst cause 2, boot mode (3,6)
The things I have tried
1, Tools> Erase flash> Erase all flash contents
2, Attempted uploading sketch not plugging any device.
3. Used different cable.
Actually, I could upload the sketch properly yesterday, but LCD didn`t work.
Do you have any solutions???
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#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <ArduinoJson.h>
#include <stdio.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 5, 4);
const char* ssid = "secret";
const char* password = "secret2";
const String endpoint = "http://api.openweathermap.org/data/2.5/weather?q=chiba,jp&APPID=";
const String key = "e8b6ba7b9f80d5870b70b44a9c08da2d";
void setup() {
Serial.begin(115200);
// Initiate the LCD:
lcd.begin(16, 2);
int cursorPosition = 0;
lcd.setCursor(0, 0);
lcd.print(" Connecting");
Serial.println("Connecting");
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.println("Connecting to WiFi..");
lcd.setCursor(0, 2);
lcd.print(".");
cursorPosition++;
}
lcd.clear();
lcd.print(" Connected!");
Serial.println("Connected to the WiFi network");
delay(8000);
}
void loop() {
if ((WiFi.status() == WL_CONNECTED)) {
WiFiClient client;
HTTPClient http;
http.begin(client, endpoint + key); //URLを指定
int httpCode = http.GET(); //GETリクエストを送信
if (httpCode > 0) { //返答がある場合
String payload = http.getString(); //返答（JSON形式）を取得
Serial.println(httpCode);
Serial.println(payload);
const size_t capacity = JSON_ARRAY_SIZE(1) + JSON_OBJECT_SIZE(1) + JSON_OBJECT_SIZE(2) + JSON_OBJECT_SIZE(3) + JSON_OBJECT_SIZE(4) + JSON_OBJECT_SIZE(5) + JSON_OBJECT_SIZE(8) + JSON_OBJECT_SIZE(13) + 470;
DynamicJsonBuffer jsonBuffer(capacity);
String json = payload;
//jsonオブジェクトの作成
JsonObject& weatherdata = jsonBuffer.parseObject(json);
//パースが成功したかどうかを確認
if (!weatherdata.success()) {
Serial.println("parseObject() failed");
}
//各データを抜き出し
const char* weather = weatherdata["weather"][0]["main"];
const double temp = weatherdata["main"]["temp"];
//LCDに表示
//画面を消去
//天気を表示
lcd.setCursor(0, 0);
lcd.print(weather);
//気温を表示
lcd.setCursor(0, 1);
String temp_str = String(temp - 273.15) + "°C";
lcd.print(temp_str);
Serial.println(weather);
Serial.println(temp_str);
}
else {
Serial.println("Error on HTTP request");
}
http.end(); //Free the resources
}
delay(5000);
}
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