Hi. I wanted to upload sketches to my Nodemcu esp8266 via platformio extension on VSCode. I copied over my pre-existing code from a different file and included all the libraries but when i copy-pasted to the /src/main.cpp and tried building it threw the errors:
src/main.cpp:216:9: error: extended character is not valid in an identifier 216 | for(int i=0; i<3; i++) {. I tried building late yesterday and it threw this error for every single line in the file [note: between the words “character” and “is” there are three spaces, but it doesn’t show for some reason].
(idk if this is the right way to include code this long so please correct me) This is the code. It has successfully been built and uploaded before.
#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <Arduino_JSON.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <Fonts/FreeMonoBold12pt7b.h>
#include <Fonts/FreeMono12pt7b.h>
#include <Fonts/FreeSans9pt7b.h>
#define TFT_RST D4 // TFT RST pin is connected to NodeMCU pin D4 (GPIO02)
#define TFT_CS D3 // TFT CS pin is connected to NodeMCU pin D3 (GPIO00)
#define TFT_DC D2 // TFT DC pin is connected to NodeMCU pin D2 (GPIO04)
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
const char* ssid = /*wifi ssid*/;
const char* password = /*password*/;
String openWeatherMapApiKey = /*key*/;
String city = /*city*/;
String countryCode = /*countryCode*/;
String latitude = /*latitude*/;
String longitude = /*longitude*/;
unsigned long lastTime = 0;
unsigned long timerDelay = 10000;
String jsonBuffer;
const long utcOffsetInSeconds = 7200;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
WiFiUDP ntpUDP;
WiFiClient client;
NTPClient timeClient(ntpUDP, "pool.ntp.org", utcOffsetInSeconds);
String httpGETRequest(const char* serverName);
const unsigned char cloud[] PROGMEM = {
B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
B00000000,B00000011,B00000000,B00000000,B00000000,B00000000,
B00000000,B00000011,B00000000,B00000000,B00000000,B00000000,
B00000000,B11000011,B00000110,B00000000,B00000000,B00000000,
B00000000,B11000011,B00001110,B00000000,B00000000,B00000000,
B00000000,B01100011,B00001100,B00000000,B00000000,B00000000,
B00000000,B01100011,B00011000,B00000000,B00000000,B00000000,
B00010000,B00111111,B11111000,B00000000,B00000000,B00000000,
B00111100,B00111111,B11110000,B01110000,B00000000,B00000000,
B00001110,B01111111,B11111101,B11100000,B00000000,B00000000,
B00000111,B11111000,B00111111,B10000000,B00000000,B00000000,
B00000001,B11110000,B00011110,B00000000,B00000000,B00000000,
B00000001,B11100000,B00001000,B01111111,B10000000,B00000000,
B00000001,B11000000,B00000001,B11111111,B11100000,B00000000,
B01111111,B11000000,B00000011,B11111111,B11110000,B00000000,
B01111111,B11000000,B00000111,B11000000,B11111000,B00000000,
B00000001,B11000000,B00001111,B00000000,B01111100,B00000000,
B00000001,B11100001,B11111111,B00000000,B00111100,B00000000,
B00000001,B11100111,B11111110,B00000000,B00011110,B00000000,
B00000111,B10001111,B11111100,B00000000,B00011110,B00000000,
B00001110,B00001111,B00000100,B00000000,B00001110,B00000000,
B00111000,B00011110,B00000000,B00000000,B00001111,B10000000,
B00000000,B00011100,B00000000,B00000000,B00001111,B11000000,
B00000000,B01111100,B00000000,B00000000,B00000111,B11100000,
B00000011,B11111100,B00000000,B00000000,B00000001,B11100000,
B00000111,B11111100,B00000000,B00000000,B00000000,B11110000,
B00001111,B11111100,B00000000,B00000000,B00000000,B01110000,
B00001111,B00000000,B00000000,B00000000,B00000000,B01110000,
B00001110,B00000000,B00000000,B00000000,B00000000,B01110000,
B00011110,B00000000,B00000000,B00000000,B00000000,B01110000,
B00011110,B00000000,B00000000,B00000000,B00000000,B11110000,
B00001110,B00000000,B00000000,B00000000,B00000000,B11110000,
B00001111,B00000000,B00000000,B00000000,B00000011,B11100000,
B00001111,B11111111,B11111111,B11111111,B11111111,B11000000,
B00000111,B11111111,B11111111,B11111111,B11111111,B10000000,
B00000001,B11111111,B11111111,B11111111,B11111111,B00000000,
B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,
B00000000,B00000000,B00000000,B00000000,B00000000,B00000000
};
const unsigned char CLOCK[] PROGMEM = {
B00000000,B00000000,B00000000,B00000000,
B00000000,B00111100,B01110000,B00000000,
B00000000,B11000000,B00000100,B00000000,
B00000001,B00000001,B00000011,B00000000,
B00000010,B01000000,B00001000,B10000000,
B00000100,B00000000,B00000000,B01000000,
B00001000,B00000000,B00000000,B00100000,
B00010000,B00000000,B00000000,B00100000,
B00010100,B00000001,B00000000,B10010000,
B00000000,B00000001,B00000000,B00010000,
B00100000,B00000001,B00000000,B00001000,
B00100000,B00000001,B00000000,B00001000,
B00100000,B00000001,B00000000,B00001000,
B00101000,B00000001,B11100000,B00101000,
B00101000,B00000000,B00000000,B00101000,
B00100000,B00000000,B00000000,B00001000,
B00100000,B00000000,B00000000,B00001000,
B00100000,B00000000,B00000000,B00000000,
B00010000,B00000000,B00000000,B00010000,
B00010000,B00000000,B00000000,B10010000,
B00001000,B00000000,B00000000,B00100000,
B00001000,B00000000,B00000000,B01100000,
B00000100,B00000000,B00000000,B01000000,
B00000010,B00000000,B00000000,B10000000,
B00000001,B10000001,B00000011,B00000000,
B00000000,B01100000,B00001100,B00000000,
B00000000,B00011110,B11110000,B00000000,
B00000000,B00000000,B00000000,B00000000
};
const unsigned char humid[] PROGMEM = {
B00000000,B00100000,B00000000,
B00000000,B00110000,B00000000,
B00000000,B01111000,B00000000,
B00000000,B11111100,B00000000,
B00000001,B11111110,B00000000,
B00000011,B11111110,B00000000,
B00000011,B11111111,B00000000,
B00000111,B11111111,B10000000,
B00001111,B11111111,B10000000,
B00001111,B11111111,B11000000,
B00011111,B11111111,B11000000,
B00011111,B11111111,B11100000,
B00111111,B11111111,B11100000,
B00111111,B11111111,B11110000,
B01111111,B11111111,B11110000,
B01111110,B01110111,B11111000,
B01111110,B00110111,B11111000,
B01111100,B10101111,B11111000,
B01111110,B01101111,B11111000,
B01111111,B11011011,B11111000,
B01111111,B11010001,B11111000,
B01111111,B10110101,B11111000,
B01111111,B10110001,B11111000,
B01111111,B01111011,B11111000,
B00111111,B11111111,B11110000,
B00111111,B11111111,B11110000,
B00011111,B11111111,B11100000,
B00001111,B11111111,B11000000,
B00000011,B11111111,B00000000,
B00000000,B01110000,B00000000
};
const unsigned char pressure[] PROGMEM = {
B00000000,B00000000,B00000000,B00000000,
B00000000,B00001111,B11000000,B00000000,
B00000000,B00111100,B11110000,B00000000,
B00000000,B11000000,B00011100,B00000000,
B00000001,B10000000,B00000110,B00000000,
B00000011,B00000000,B00000010,B00000000,
B00000010,B00000000,B00000001,B00000000,
B00000100,B00000000,B00010001,B10000000,
B00000100,B00000000,B01100000,B10000000,
B00001100,B00000000,B11000000,B10000000,
B00001000,B00000011,B10000000,B11000000,
B00001000,B00000111,B10000000,B11000000,
B00001000,B00000111,B10000000,B11000000,
B00001100,B00000011,B00000000,B11000000,
B00001100,B00000000,B00000000,B10000000,
B00000100,B00000000,B00000000,B10000000,
B00000110,B00000000,B00000001,B10000000,
B00000010,B00000000,B00000001,B00000000,
B00000011,B00000000,B00000010,B00000000,
B00000001,B10000000,B00000100,B00000000,
B00000000,B01100000,B00011000,B00000000,
B00000000,B00111111,B11110000,B00000000,
B00000000,B00000111,B10000000,B00000000,
B00000000,B00000101,B10000000,B00000000,
B00000000,B00000101,B10000000,B00000000,
B00111111,B11111101,B11111111,B11110000,
B00000000,B00000000,B00000000,B00000000,
B00000000,B00000000,B00000000,B00000000,
B00000000,B00000000,B00000000,B00000000,
B00111111,B11111111,B11111111,B11110000
};
const unsigned char windS[] PROGMEM = {
B00000000,B00000000,B00001111,B00000000,B11110000,
B00000000,B00000000,B00011101,B11000011,B10011100,
B00000000,B00000000,B00110000,B11000110,B00000110,
B00000000,B00000000,B00100000,B01100100,B00000010,
B00000000,B00000000,B00000000,B01101100,B00000011,
B00000000,B00000000,B00000000,B01101100,B00000001,
B00000000,B00000000,B00000000,B11000000,B00000011,
B00000111,B11111111,B11111111,B10000000,B00000011,
B00001111,B11111111,B11111111,B00000000,B00000010,
B00000000,B00000000,B00000000,B00000000,B00000110,
B11111111,B11111111,B11111111,B11111111,B11111100,
B11111111,B11111111,B11111111,B11111111,B11110000,
B00000000,B00000000,B00000000,B00000000,B00000000,
B00000000,B01111111,B11111111,B11111110,B00000000,
B00000000,B01111111,B11111111,B11111111,B00000000,
B00000000,B00000000,B00000000,B00000001,B10000000,
B00000000,B00000000,B00000000,B00010001,B10000000,
B00000000,B00000000,B00000000,B00011011,B00000000,
B00000000,B00000000,B00000000,B00001110,B00000000
};
void setup() {
pinMode(D8, OUTPUT);
digitalWrite(D8, LOW);
Serial.begin(115200);
WiFi.begin(ssid, password);
Serial.println("Connecting");
int blinkCount=0;
while(WiFi.status() != WL_CONNECTED) {
if(blinkCount==4) digitalWrite(D8, HIGH);
delay(500);
Serial.print(".");
if(blinkCount==4) {
digitalWrite(D8, LOW);
blinkCount=0;
}
blinkCount++;
}
for(int i=0; i<3; i++) {
digitalWrite(D8, HIGH);
delay(10);
digitalWrite(D8, LOW);
delay(10);
}
digitalWrite(D8, HIGH);
Serial.println("");
Serial.print("Connected to WiFi network with IP Address: ");
Serial.println(WiFi.localIP());
Serial.println("Timer set to 10 seconds (timerDelay variable), it will take 10 seconds before publishing the first reading.");
timeClient.begin();
tft.initR(INITR_BLACKTAB);
uint16_t time = millis();
tft.fillScreen(ST7735_BLACK);
time = millis() - time;
delay(500);
tft.fillScreen(ST7735_BLACK);
//layout
tft.drawFastHLine(0, 0, tft.width(), ST7735_WHITE);
tft.drawFastHLine(1, 169, tft.width(), ST7735_WHITE);
tft.drawFastVLine(0, 0, tft.width(), ST7735_WHITE);
tft.drawFastVLine(127, 0, tft.width(), ST7735_WHITE);
tft.drawBitmap(6, 5, cloud, 45, 38, ST7735_YELLOW);
//delay(2000);
tft.drawBitmap(90, 47, CLOCK, 30, 28, ST7735_WHITE);
tft.drawBitmap(6, 75, humid, 22, 30, 0x07FF);
tft.drawBitmap(95, 100, pressure, 30, 30, ST7735_RED);
tft.drawBitmap(6, 131, windS, 40, 19, ST7735_YELLOW);
tft.setFont(&FreeSans9pt7b);
tft.setTextColor(ST7735_YELLOW);
tft.setCursor(50, 20);
tft.setTextSize(1);
tft.print(city);
// tft.setFont(&FreeMono9pt7b);
tft.setFont();
tft.setTextSize(1);
tft.setCursor(55, 31);
tft.print(countryCode);
tft.setCursor(100, 29);
tft.print(" C");
tft.setTextColor(0x07FF);
tft.setFont(&FreeSans9pt7b);
tft.setTextSize(1);
tft.setCursor(74, 95);
tft.print("%");
tft.setFont();
tft.setTextColor(0x07FF);
tft.setCursor(95, 85);
tft.setTextSize(1);
tft.print("Humid");
tft.setTextColor(0xAFE5);
tft.setTextSize(1);
tft.setCursor(107, 135);
tft.print("m/s");
tft.setTextColor(ST7735_RED);
tft.setCursor(72, 108);
tft.print(" hpa");
delay(1000);
}
int temp, pres, hum;
String wind;
void loop() {
if((millis() - lastTime) > timerDelay) {
if(WiFi.status()==WL_CONNECTED) {
String serverPath = "http://api.openweathermap.org/data/2.5/weather?q="+city+","+countryCode+"&APPID="+openWeatherMapApiKey;
jsonBuffer = httpGETRequest(serverPath.c_str());
// Serial.println(jsonBuffer);
JSONVar myObject = JSON.parse(jsonBuffer);
if(JSON.typeof(myObject)=="undefined") {
Serial.print("| Parsing input failed! ");
return;
}
timeClient.update();
String jsonString = JSON.stringify(myObject["main"]["temp"]);
temp=jsonString.toInt();
temp=(temp-273);
jsonString = JSON.stringify(myObject["main"]["pressure"]);
pres=jsonString.toInt();
jsonString = JSON.stringify(myObject["main"]["humidity"]);
hum=jsonString.toInt();
jsonString = JSON.stringify(myObject["wind"]["speed"]);
wind=jsonString;//.toInt();
Serial.println();
Serial.print("JSON object = ");
Serial.println(myObject);
Serial.print("Temperature: ");
Serial.println(temp);
Serial.print("Pressure: ");
Serial.println(pres);
Serial.print("Humidity: ");
Serial.println(hum);
Serial.print("Wind Speed: ");
Serial.println(wind);
// Serial.println(jsonBuffer);
tft.fillRect(14, 45, 68, 28, ST7735_BLACK);
tft.fillRect(24, 70, 55, 10, ST7735_BLACK);
tft.fillRect(73, 24, 25, 21, ST7735_BLACK);
tft.fillRect(40, 80, 26, 21, ST7735_BLACK);
tft.fillRect(20, 105, 55, 18, ST7735_BLACK);
tft.fillRect(50, 130, 45, 19, ST7735_BLACK);
tft.setTextColor(ST7735_YELLOW);
tft.setFont(&FreeMonoBold12pt7b);
tft.setTextSize(1);
tft.setCursor(72, 42);
tft.print(temp);
// tft.setFont();
tft.setTextColor(ST7735_WHITE);
tft.setCursor(13, 62);
// tft.setTextSize(1);
int minutes = timeClient.getMinutes();
tft.print(timeClient.getHours());
tft.print(":");
if(minutes<10) {
tft.print(0);
tft.print(minutes);
}
else tft.print(timeClient.getMinutes());
tft.setFont();
tft.setTextSize(1);
tft.setCursor(26, 70);
tft.print(daysOfTheWeek[timeClient.getDay()]);
tft.setTextColor(0x07FF);
tft.setFont(&FreeMono12pt7b);
tft.setTextSize(1);
tft.setCursor(40, 97);
tft.print(hum);
tft.setTextColor(ST7735_RED);
tft.setCursor(18, 121);
tft.print(pres);
tft.setTextColor(0xAFE5);
tft.setCursor(48, 148);
tft.print(wind);
}
else {
Serial.println("WiFi Disconnected");
}
lastTime = millis();
}
}
String httpGETRequest(const char* serverName) {
HTTPClient http;
http.begin(client, serverName);
int httpResponseCode = http.GET();
String payload = "{}";
if(httpResponseCode>0) {
Serial.print("HTTP Response code: ");
Serial.println(httpResponseCode);
payload = http.getString();
}
else {
Serial.print("Error code: ");
Serial.println(httpResponseCode);
}
http.end();
return payload;
}
edit: I tried writing everything by hand and it works perfectly fine. Managed to upload and run the script with correct errors showing (me messing up syntax e.t.c). Problem is that I can’t copy the code from another file without the aforementioned “empty extended character” error.