NodeMCU(ESP8266) | GPS | ILI9488 - Showing the Latitude and Longitude on Display

2026-01-12 17:27:43 +03:00 · 2020-01-31 15:51:13 -08:00
parent 598858eabb
commit dad763ce4d
3 changed files with 582 additions and 0 deletions
--- a/ESP8266_BASIC_GPS/ESP8266_BAISC_GPS_MODULE_FINAL/ESP8266_BAISC_GPS_MODULE_FINAL.ino
+++ b/ESP8266_BASIC_GPS/ESP8266_BAISC_GPS_MODULE_FINAL/ESP8266_BAISC_GPS_MODULE_FINAL.ino
@@ -0,0 +1,120 @@
+#include <TinyGPS++.h>
+#include <SoftwareSerial.h>
+#include <TimeLib.h>
+#include "SPI.h"
+#include "TFT_eSPI.h"
+
+TFT_eSPI tft = TFT_eSPI();
+
+static const int RXPin = 5, TXPin = 16;
+static const uint32_t GPSBaud = 9600;
+
+const int offset = -8; // Pacific Standard Time
+time_t prevDisplay = 0;
+
+// The TinyGPS++ object
+TinyGPSPlus gps;
+
+// The serial connection to the GPS device
+SoftwareSerial ss(RXPin, TXPin);
+
+bool isReadyToShow;
+char timeBuffer[16];
+char dateBuffer[16];
+float prevLatitude, prevLongitude;
+
+void setup()
+{
+  Serial.begin(115200);
+  ss.begin(GPSBaud);
+
+  tft.begin();
+  tft.setRotation(3);
+
+  isReadyToShow = false;
+  initScreen();
+}
+
+void loop()
+{
+
+  while (ss.available() > 0){
+      if (gps.encode(ss.read())){
+
+        if(!isReadyToShow){
+            isReadyToShow = true;
+            tft.fillScreen(TFT_BLACK);
+          }
+          
+        int Year = gps.date.year();
+        byte Month = gps.date.month();
+        byte Day = gps.date.day();
+        byte Hour = gps.time.hour();
+        byte Minute = gps.time.minute();
+        byte Second = gps.time.second();
+
+        setTime(Hour, Minute, Second, Day, Month, Year);
+        adjustTime(offset * SECS_PER_HOUR);
+
+        if(gps.location.isValid()){
+          tft.setTextDatum(TR_DATUM);
+          tft.setTextSize(2);
+          tft.setTextColor(TFT_WHITE, TFT_BLACK);
+
+          float latitude = gps.location.lat();
+          if(latitude != prevLatitude){
+            tft.drawString(String(latitude, 6), 460, 120, 4);
+          }
+          prevLatitude = latitude;
+
+          float longitude = gps.location.lng();
+          if(longitude != prevLongitude){
+            tft.drawString(String(longitude, 6), 460, 120, 4);
+          }
+          prevLongitude = longitude;
+          
+        }       
+      }
+
+      if(timeStatus() != timeNotSet){
+        if(now() != prevDisplay){
+          prevDisplay = now();
+          dateTimeDisplay();
+        }
+      }
+  }
+
+  if (millis() > 5000 && gps.charsProcessed() < 10)
+  {
+    Serial.println(F("No GPS detected: check wiring."));
+    errorScreen();
+    while(true);
+  }
+}
+
+void initScreen(){
+  tft.fillScreen(TFT_WHITE);
+  tft.setTextSize(1);
+  tft.setTextColor(TFT_RED, TFT_WHITE);
+  tft.setTextDatum(TC_DATUM);
+  tft.drawString("Waiting for GPS...", 240, 140, 4);
+}
+
+void errorScreen(){
+  tft.fillScreen(TFT_RED);
+  tft.setTextSize(1);
+  tft.setTextColor(TFT_WHITE, TFT_RED);
+  tft.setTextDatum(TC_DATUM);
+  tft.drawString("No GPS detected: Check Wiring!", 240, 140, 4);
+}
+
+void dateTimeDisplay(){
+  sprintf(timeBuffer, "Time: %02u:%02u:%02u", hour(), minute(), second());
+  tft.setTextDatum(TL_DATUM);
+  tft.setTextSize(1);
+  tft.setTextColor(TFT_WHITE, TFT_BLACK);
+  tft.drawString(timeBuffer, 0, 0, 4);
+
+  sprintf(dateBuffer, "Date: %02u/%02u/%04u", month(), day(), year());
+  tft.drawString(dateBuffer, 0, 26, 4);
+}