NO SUCH FILE OR DIRECTORY in Adruino IDE with ThingSpeak library

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Danh
Danh 2023-4-18
移动：Christopher Stapels 2025-3-18
I have a project subject in University with database in ThingSpeak, I show code below like this with board ESP32. When I run with board ESP32 or ESP8266, the code announce me a error like "ThingSpeak.h: no such file or directory", although I install Thingspeak library before that. So, I need to do what to config that code. Can anyone help me? Thanks for responding or reading my problem. T.T
Error announce me inn Output:
fatal error: ThingSpeak.h: No such file or directory
compilation terminated.
My code:
#include <WiFi.h>
//#include <WiFiClient.h>
#include "ThingSpeak.h"
#define WIFI_SSID "Tang 1 Tro 198_2.4G"
#define WIFI_PASSWORD ""
#define SECRET_CH_ID 2108004
#define SECRET_WRITE_APIKEY "xxxxxxxxxxxxxxxx" // replace XYZ with your channel write API Key
#define A 35 // define MQ2 analog pin
#define D 14 // define MQ2 digital pin
#define LED 25
WiFiClient client;
unsigned long myChannelNumber = SECRET_CH_ID;
const char * myWriteAPIKey = SECRET_WRITE_APIKEY;
int Digital_value, Analog_value;
unsigned long dataMillis = 0;
void setup() {
Serial.begin(9600);
pinMode(A, INPUT);
pinMode(D, INPUT);
pinMode(LED, OUTPUT);
digitalWrite(LED, LOW);
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Serial.print("Connecting to Wi-Fi");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(300);
}
Serial.println();
Serial.print("Connected with IP: ");
Serial.println(WiFi.localIP());
Serial.println();
ThingSpeak.begin(client);
}
void loop() {
Analog_value = analogRead(A);
Digital_value = digitalRead(D);
Serial.printf("Analog value: %d\n", Analog_value);
Serial.printf("Digital value: %d\n", Digital_value);
ThingSpeak.setField(1, Analog_value);
ThingSpeak.setField(2, !Digital_value);
if (millis() - dataMillis > 20000) {
int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
if (x == 200) {
Serial.println("Channel update successful.");
}
else {
Serial.println("Problem updating channel. HTTP error code " + String(x));
}
dataMillis = millis();
}
if (!Digital_value) {
digitalWrite(LED, HIGH);
delay(1000);
digitalWrite(LED, LOW);
delay(1000);
}
}
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Christopher Stapels
Christopher Stapels 2023-4-18
I assume you are programming in Arduino IDE? Make sure you have installed the appropriate board in boards manager, and then try removing and then reinstalling the ThingSpeak library. Occasionally I have found missing library problems related to selection of the wrong board type.

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