init
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363
src/main.cpp
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363
src/main.cpp
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#include <TFT_eSPI.h>
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#include <TinyGPSPlus.h>
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#include <HardwareSerial.h>
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#include <Arduino.h>
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#include <SPI.h>
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#include "Free_Fonts.h"
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#define RX2_PIN 16
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#define TX2_PIN 17
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#define GPS_BAUD 9600
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#define LED 2
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#define KEY_X 3 // start X
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#define KEY_Y 24
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#define KEY_W 76 // Key width
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#define KEY_H 36 // Key height
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#define KEY_SPACING_X 3 // X gap
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#define KEY_SPACING_Y 3 // Y gap
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#define KEY_TEXTSIZE 1 // Font size multiplier
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#define BUTTON_X_DELTA 22
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#define NUM_KEYS 3
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#define QUEUE_SIZE 5
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TFT_eSPI tft = TFT_eSPI();
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TinyGPSPlus gps;
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HardwareSerial serialGPS(1);
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TaskHandle_t taskBlinkHandle = NULL; // for task control: suspend / resume
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TaskHandle_t taskGPSHandle = NULL;
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TFT_eSPI_Button key[NUM_KEYS];
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SemaphoreHandle_t spiMutex;
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QueueHandle_t gpsQueue = NULL;
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char label[] = "label";
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String btnLabel[] = {"GPS", "DATE", "LOC"};
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// uint16_t calData[5] = { 293, 3474, 445, 3470, 0 };
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// uint16_t calData[5] = { 314, 3512, 424, 3489, 0 };
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// uint16_t calData[5] = { 233, 3558, 390, 3514, 0 };
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// uint16_t calData[5] = { 283, 3553, 416, 3514, 0 };
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// Initial Free Heap: 274996 bytes
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struct GpsData
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{
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float lat;
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float lng;
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uint8_t hour;
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uint8_t minute;
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uint8_t second;
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uint16_t year;
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uint8_t month;
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uint8_t day;
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uint32_t sat;
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float speed;
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float alt;
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bool isValid;
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};
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// struct GPSData1 {
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// float lat = 0.0f;
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// float lon = 0.0f;
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// float alt = 0.0f;
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// uint8_t satellites = 0;
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// float speed = 0.0f;
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// float course = 0.0f;
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// bool valid = false;
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// };
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// packet.lat = gps.location.isValid() ? gps.location.lat() : 0.0f;
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void smartDelay(unsigned long ms);
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void initDisplay();
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void displayGPSInfo();
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void drawButtons();
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void taskBlink(void *pvParameters);
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void taskGPS(void *pvParameters);
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void taskTFT(void *pvParameters);
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void drawTitle(const char *title);
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//------------------------------------------------------------------------------------------
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void setup()
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{
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Serial.begin(115200);
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spiMutex = xSemaphoreCreateMutex();
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Serial.printf("Starting FreeRTOS: Memory Usage\nInitial Free Heap: %u bytes\n", xPortGetFreeHeapSize());
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gpsQueue = xQueueCreate(QUEUE_SIZE, sizeof(GpsData));
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xTaskCreatePinnedToCore(taskBlink, "taskBlink", 2000, NULL, 1, &taskBlinkHandle, 0);
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xTaskCreatePinnedToCore(taskGPS, "taskGPS", 2000, NULL, 1, &taskGPSHandle, 0);
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xTaskCreatePinnedToCore(taskTFT, "taskTFT", 2000, NULL, 1, NULL, 1);
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}
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void loop()
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{
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static uint32_t lastCheck = 0;
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if (millis() - lastCheck > 5000)
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{
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Serial.printf("Free Heap: %u bytes\n", xPortGetFreeHeapSize());
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lastCheck = millis();
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}
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}
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void taskGPS(void *pvParameters)
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{
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serialGPS.begin(GPS_BAUD, SERIAL_8N1, RX2_PIN, TX2_PIN);
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Serial.print("Task GPS running on core ");
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Serial.println(xPortGetCoreID());
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GpsData data;
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while (true)
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{
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while (serialGPS.available() > 0)
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{
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gps.encode(serialGPS.read());
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}
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if (gps.location.isUpdated())
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{
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data.lat = gps.location.lat();
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data.lng = gps.location.lng();
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data.speed = gps.speed.kmph();
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data.alt = gps.altitude.meters();
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data.sat = gps.satellites.value();
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Serial.printf("Lat: %.6f, Lon: %.6f\n", data.lat, data.lng);
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Serial.printf("Speed: %.1f km/h\n", data.speed);
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Serial.printf("Alt: %.1f m\n", data.alt);
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Serial.printf("Satellites: %d\n", data.sat);
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}
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if (gps.date.isUpdated() && gps.time.isUpdated())
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{
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data.year = gps.date.year();
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data.month = gps.date.month();
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data.day = gps.date.day();
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data.hour = gps.time.hour();
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data.minute = gps.time.minute();
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data.second = gps.time.second();
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Serial.printf("Date: %04d-%02d-%02d\n", data.year, data.month, data.day);
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Serial.printf("Time: %02d:%02d:%02d\n", data.hour, data.minute, data.second);
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}
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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// Serial.printf("TaskGPS Stack Free: %u bytes\n", uxTaskGetStackHighWaterMark(NULL));
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}
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}
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void taskBlink(void *pvParameters)
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{
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pinMode(LED, OUTPUT);
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for (;;)
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{ // Infinite loop
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digitalWrite(LED, HIGH);
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// Serial.println("BlinkTask: LED ON");
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vTaskDelay(1000 / portTICK_PERIOD_MS); // 1000ms
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digitalWrite(LED, LOW);
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// Serial.println("BlinkTask: LED OFF");
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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// Serial.print("Task Blink running on core ");
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// Serial.println(xPortGetCoreID());
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// Serial.printf("TaskBlink Stack Free: %u bytes\n", uxTaskGetStackHighWaterMark(NULL));
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}
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}
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void taskTFT(void *pvParameters)
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{
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initDisplay();
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drawTitle("Hello world!");
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drawButtons();
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for (;;)
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{
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// Serial.printf("taskTFT Stack Free: %u bytes\n", uxTaskGetStackHighWaterMark(NULL));
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vTaskDelay(2000 / portTICK_PERIOD_MS);
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}
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}
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void loop_1()
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{
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if (gps.location.isUpdated())
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{
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displayGPSInfo();
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}
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uint16_t t_x = 0, t_y = 0; // To store the touch coordinates
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// Get current touch state and coordinates
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bool pressed = tft.getTouch(&t_x, &t_y);
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if (pressed)
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{
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Serial.println("pressed");
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digitalWrite(LED, HIGH);
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}
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else
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{
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digitalWrite(LED, LOW);
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}
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// Adjust press state of each key appropriately
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for (uint8_t b = 0; b < NUM_KEYS; b++)
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{
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if (pressed && key[b].contains(t_x, t_y))
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{
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key[b].press(true);
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}
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else
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{
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key[b].press(false);
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}
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}
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// Check if any key has changed state
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for (uint8_t b = 0; b < NUM_KEYS; b++)
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{
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// If button was just pressed, redraw inverted button
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if (key[b].justPressed())
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{
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Serial.println("Button " + (String)b + " pressed");
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tft.setFreeFont(FF5);
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key[b].drawButton(true, btnLabel[b]);
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}
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// If button was just released, redraw normal color button
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if (key[b].justReleased())
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{
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Serial.println("Button " + (String)b + " released");
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tft.setFreeFont(FF5);
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key[b].drawButton(false, btnLabel[b]);
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}
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}
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smartDelay(100);
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}
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void drawButtons()
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{
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for (int i = 0; i < NUM_KEYS; i++)
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{
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key[i].initButtonUL(&tft,
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KEY_X + i * (KEY_W + KEY_SPACING_X),
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KEY_Y,
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KEY_W,
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KEY_H,
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TFT_LIGHTGREY,
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TFT_DARKGREY,
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TFT_WHITE,
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label,
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KEY_TEXTSIZE);
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key[i].setLabelDatum(0, 2, MC_DATUM);
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key[i].drawButton(false, btnLabel[i]);
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}
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}
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void initDisplay()
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{
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tft.init();
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tft.setRotation(2);
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uint16_t calData[5] = {283, 3553, 416, 3514, 0};
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tft.setTouch(calData);
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#ifndef TFT_BL
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Serial.println("No TFT backlight pin defined");
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#else
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pinMode(TFT_BL, OUTPUT);
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digitalWrite(TFT_BL, HIGH);
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#endif
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tft.fillScreen(TFT_BLACK);
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}
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void drawTitle(const char *title)
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{
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tft.setFreeFont(FF5);
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tft.setTextColor(TFT_YELLOW, TFT_BLACK);
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tft.drawString(title, 0, 0, GFXFF);
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}
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void displayGPSInfo()
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{
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Serial.print(F("Location: "));
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if (gps.location.isValid())
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{
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Serial.print(gps.location.lat(), 6);
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Serial.print(F(","));
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Serial.print(gps.location.lng(), 6);
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}
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else
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{
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Serial.print(F("INVALID"));
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}
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Serial.print(F(" Date/Time: "));
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if (gps.date.isValid())
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{
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Serial.print(gps.date.month());
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Serial.print(F("/"));
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Serial.print(gps.date.day());
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Serial.print(F("/"));
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Serial.print(gps.date.year());
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}
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else
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{
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Serial.print(F("INVALID"));
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}
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Serial.print(F(" "));
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if (gps.time.isValid())
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{
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if (gps.time.hour() < 10)
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Serial.print(F("0"));
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Serial.print(gps.time.hour());
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Serial.print(F(":"));
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if (gps.time.minute() < 10)
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Serial.print(F("0"));
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Serial.print(gps.time.minute());
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Serial.print(F(":"));
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if (gps.time.second() < 10)
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Serial.print(F("0"));
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Serial.print(gps.time.second());
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Serial.print(F("."));
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if (gps.time.centisecond() < 10)
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Serial.print(F("0"));
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Serial.print(gps.time.centisecond());
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String a = "";
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a += String(gps.time.hour());
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a += ":";
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a += String(gps.time.minute());
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a += ":";
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a += String(gps.time.second());
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tft.setFreeFont(FF30);
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tft.setTextColor(TFT_CYAN, TFT_BLACK);
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tft.drawString(a, 5, 100, GFXFF);
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}
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else
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{
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Serial.print(F("INVALID"));
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}
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Serial.println();
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}
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void smartDelay(unsigned long ms)
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{
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unsigned long start = millis();
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do
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{
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while (serialGPS.available())
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gps.encode(serialGPS.read());
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} while (millis() - start < ms);
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}
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