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// Written by Asaf Matan |
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// GPS code is based on |
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// https://www.hackster.io/SeeedStudio/wio-terminal-gps-ad70e2 Arduino/Wappsto |
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// example |
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#include <Adafruit_VCNL4040.h> |
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#include <SPI.h> |
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#include "TFT_eSPI.h" |
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#include <Seeed_FS.h> |
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#include <SoftwareSerial.h> |
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#include <TinyGPS++.h> |
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#include <WiFiClientSecure.h> |
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#include <WiFiMulti.h> |
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#include "Free_Fonts.h" |
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#include "RawImage.h" |
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#include "SD/Seeed_SD.h" |
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#include "Wappsto.h" |
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#include "WappstoValueTypes.h" |
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#include "wappsto_config.h" |
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#include "my_secrets.h" |
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WiFiMulti wifiMulti; |
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WiFiClientSecure client; |
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Wappsto wappsto(&client); |
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#define BUZZER_PIN WIO_BUZZER |
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Network *myNetwork; |
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Device *myDevice; |
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Value *myLatitudeValue; |
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Value *myLongitudeValue; |
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DeviceDescription_t myDeviceDescription = { |
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.name = "Location Device1", |
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.product = "", |
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.manufacturer = "", |
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.description = |
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"Example sending location shown on map in the Wappsto dashboard", |
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.version = "1.0", |
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.serial = "00001", |
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.protocol = "Json-RPC", |
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.communication = "WiFi", |
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}; |
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double myLatitude = MY_LAT; |
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double myLongitude = MY_LON; |
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void updateLocation(double valLatitude, double valLongitude) { |
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myLatitudeValue->report(valLatitude); |
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myLongitudeValue->report(valLongitude); |
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} |
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void refreshLocationCallback(Value *value) { |
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// Nothing to read from wappsto no nothing to refresh |
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} |
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bool skip_wifi = false; |
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const char *ssid = MY_SSID; |
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const char *password = MY_PASS; |
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Adafruit_VCNL4040 vcnl4040 = Adafruit_VCNL4040(); |
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SoftwareSerial mySerial(0, 1); // RX, TX |
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TinyGPSPlus gps; |
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TFT_eSPI tft; |
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TinyGPSCustom ExtLat(gps, "GPGGA", 3); // N for Latitude |
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TinyGPSCustom ExtLng(gps, "GPGGA", 5); // E for Longitude |
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const float pi = 3.1415; |
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int menu = 0, p_menu = 3; |
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int logging = 0, sat_n = 0; |
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int coin_counter = 0; |
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int wappsto_transmited_lines = 0; |
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String F_name = "db.txt"; |
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String p_hour, p_lat, p_lng, p_alt, p_sat, p_date; |
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String p_coin_counter; |
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// for Satellites position |
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static const int MAX_SATELLITES = 40; |
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TinyGPSCustom totalGPGSVMessages(gps, "GPGSV", |
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1); // $GPGSV sentence, first element |
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TinyGPSCustom messageNumber(gps, "GPGSV", |
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2); // $GPGSV sentence, second element |
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TinyGPSCustom satsInView(gps, "GPGSV", 3); // $GPGSV sentence, third element |
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TinyGPSCustom satNumber[4]; // to be initialized later |
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TinyGPSCustom elevation[4]; |
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TinyGPSCustom azimuth[4]; |
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TinyGPSCustom snr[4]; |
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struct { |
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bool active; |
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int elevation; |
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int azimuth; |
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int snr; |
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int dsp; |
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} sats[MAX_SATELLITES]; |
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String N_date, hour0; |
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bool sd; |
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String lat0, lng0; |
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void disp_title() { |
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if (menu == 0) { |
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tft.setFreeFont(FF0); |
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tft.fillScreen(TFT_BLACK); |
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tft.setTextSize(3); |
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tft.drawString("GPS", 120, 3); |
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tft.setTextSize(2); |
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tft.drawString("Date", 30, 42); |
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tft.drawString("Time", 30, 74); |
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tft.drawString("LAT", 30, 106); |
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tft.drawString("LONG", 30, 138); |
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tft.drawString("ALT", 30, 170); |
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tft.drawString("Satellites", 30, 202); |
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if (sd != true) { |
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tft.drawChar(295, 223, 'S', TFT_WHITE, TFT_RED, 2); |
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tft.drawChar(307, 223, 'D', TFT_WHITE, TFT_RED, 2); |
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} |
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p_hour = " "; |
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p_lat = " "; |
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p_lng = " "; |
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p_alt = " "; |
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p_sat = " "; |
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p_date = " "; |
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} else if (menu == 1) { |
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tft.setFreeFont(FF0); |
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tft.fillScreen(TFT_BLACK); |
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tft.setTextSize(3); |
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tft.drawString("Stats", 120, 3); |
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tft.setTextSize(2); |
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tft.drawString("Coins", 30, 42); |
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p_coin_counter = " "; |
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} |
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} |
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String doubleToString(double value, int precision) { |
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char buffer[20]; |
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dtostrf(value, 0, precision, buffer); |
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return String(buffer); |
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} |
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void displayInfo() { |
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if (gps.location.isValid()) { |
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lat0 = doubleToString(gps.location.lat(), 6); |
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lng0 = doubleToString(gps.location.lng(), 6); |
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} else { |
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lat0 = "0"; |
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lng0 = "0"; |
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} |
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if (gps.date.isValid()) { |
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N_date = String(gps.date.day()) + "/" + String(gps.date.month()) + "/" + |
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String(gps.date.year()); |
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} else { |
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N_date = "00/00/0000"; |
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} |
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if (gps.time.isValid()) { |
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hour0 = ""; |
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if (gps.time.hour() < 10) hour0 = "0"; |
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hour0 += gps.time.hour(); |
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hour0 += ":"; |
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if (gps.time.minute() < 10) hour0 += "0"; |
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hour0 += gps.time.minute(); |
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hour0 += ":"; |
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if (gps.time.second() < 10) hour0 += "0"; |
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hour0 += gps.time.second(); |
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} else { |
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hour0 = "00:00:00"; |
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} |
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} |
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void displayInfoData(void) { |
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if (menu == 0) { // menu 0 |
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if (menu != p_menu) { |
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disp_title(); |
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p_menu = menu; |
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} |
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if (N_date != p_date) { // Date |
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tft.fillRect(100, 42, 120, 16, TFT_BLACK); |
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tft.drawString(N_date, 100, 42); |
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p_date = N_date; |
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} |
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if (hour0 != p_hour) { // Time |
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tft.fillRect(100, 74, 120, 16, TFT_BLACK); |
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tft.drawString(hour0, 100, 74); |
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p_hour = hour0; |
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} |
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if (lat0 != p_lat) { // Latitude |
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tft.fillRect(100, 106, 132, 16, TFT_BLACK); |
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tft.drawString(lat0, 100, 106); |
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p_lat = lat0; |
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} |
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if (lng0 != p_lng) { // Longitude |
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tft.fillRect(100, 138, 156, 16, TFT_BLACK); |
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tft.drawString(lng0, 100, 138); |
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p_lng = lng0; |
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} |
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if (String(gps.altitude.meters()) != p_alt) { // Altimeter |
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tft.fillRect(100, 170, 60, 16, TFT_BLACK); |
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tft.drawString(String(gps.altitude.meters()), 100, 170); |
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p_alt = String(gps.altitude.meters()); |
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} |
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if (String(gps.satellites.value()) != p_sat) { // N of Satellites |
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tft.fillRect(160, 202, 32, 16, TFT_BLACK); |
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tft.drawString(String(gps.satellites.value()), 160, 202); |
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p_sat = String(gps.satellites.value()); |
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} |
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} // end of menu=0 |
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else if (menu == 1) { |
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if (menu != p_menu) { |
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disp_title(); |
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p_menu = menu; |
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} |
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if (String(coin_counter) != p_coin_counter) { // Coin Counter |
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tft.fillRect(100, 42, 120, 16, TFT_BLACK); |
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tft.drawString(String(coin_counter), 100, 42); |
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p_coin_counter = String(coin_counter); |
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} |
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} |
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} |
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void playTone(int tone, int duration) { |
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for (long i = 0; i < duration * 1000L; i += tone * 2) { |
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digitalWrite(BUZZER_PIN, HIGH); |
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delayMicroseconds(tone); |
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digitalWrite(BUZZER_PIN, LOW); |
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delayMicroseconds(tone); |
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} |
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} |
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void writeIntToSD(const char *filename, int value) { |
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File file = SD.open(filename, FILE_WRITE); |
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if (file) { |
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file.print(value); |
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file.close(); |
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} else { |
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Serial.println("Error writing to file"); |
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} |
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} |
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int readIntFromSD(const char *filename) { |
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File file = SD.open(filename, FILE_READ); |
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int value = 0; |
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if (file) { |
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value = file.parseInt(); |
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file.close(); |
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} else { |
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Serial.println("Error reading from file"); |
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} |
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return value; |
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} |
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String *parseCSV(String data, int &fieldCount) { |
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String *fields = |
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new String[data.length()]; // Allocate memory for the maximum |
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// expected number of fields |
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fieldCount = 0; |
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// Split the data string into fields |
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int lastIndex = 0; |
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int commaIndex = data.indexOf(','); |
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while (commaIndex != -1) { |
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fields[fieldCount] = data.substring(lastIndex, commaIndex); |
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fieldCount++; |
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lastIndex = commaIndex + 1; |
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commaIndex = data.indexOf(',', lastIndex); |
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} |
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fields[fieldCount] = data.substring(lastIndex); |
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fieldCount++; |
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return fields; |
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} |
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void initializeWifi(void) { |
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Serial.println("Initializing WiFi"); |
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wifiMulti.addAP(ssid, password); |
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while (wifiMulti.run() != WL_CONNECTED) { |
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Serial.print("."); |
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delay(500); |
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} |
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Serial.print("IP address: "); |
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Serial.println(WiFi.localIP()); |
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} |
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void proximity_handler(void) { |
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int proximity_value; |
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proximity_value = vcnl4040.getProximity(); |
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if (proximity_value > 50) { |
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if (sd == true) { |
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Serial.println(F_name); |
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File myFile = SD.open(F_name, FILE_APPEND); |
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if (myFile) { |
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myFile.print(N_date); |
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myFile.print(","); |
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myFile.print(hour0); |
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myFile.print(","); |
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myFile.print(lat0); |
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myFile.print(","); |
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myFile.print(lng0); |
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myFile.print(","); |
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myFile.println(gps.altitude.meters()); |
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myFile.close(); |
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} |
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} |
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Serial.println("Proximity Value:"); |
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Serial.println(proximity_value); |
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coin_counter += 1; |
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// Store Coin Counter to SD |
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writeIntToSD("coin_counter.txt", coin_counter); |
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delay(1500); |
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} |
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} |
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void wappsto_transmit(void) { |
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if (digitalRead(WIO_KEY_B) == LOW) { |
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int line_counter = 0; |
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// Log to SD card |
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if (sd == true) { |
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File myFile = SD.open(F_name, FILE_READ); |
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if (myFile) { |
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while (myFile.available()) { |
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int fieldCount; |
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String line = myFile.readStringUntil('\n'); |
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if (line.length() > 0) { |
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Serial.println(line); |
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String *fields = parseCSV(line, fieldCount); |
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// Print the fields |
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for (int i = 0; i < fieldCount; i++) { |
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Serial.print("Field "); |
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Serial.print(i); |
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Serial.print(": "); |
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Serial.println(fields[i]); |
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if (i == 2) { |
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myLatitude = fields[i].toDouble(); |
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} else if (i == 3) { |
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myLongitude = fields[i].toDouble(); |
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} |
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} |
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delete[] fields; // Deallocate the memory used for the fields array |
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if (line_counter >= wappsto_transmited_lines) { |
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if (myLatitude > 0) { |
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Serial.print("Transmited line: "); |
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Serial.println(line_counter); |
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updateLocation(myLatitude, myLongitude); |
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wappsto.dataAvailable(); |
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} |
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wappsto_transmited_lines++; |
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} |
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line_counter++; |
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} |
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} |
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myFile.close(); |
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Serial.print("Updating transmitted lines to: "); |
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Serial.println(wappsto_transmited_lines); |
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writeIntToSD("wappsto_transmitted_lines.txt", wappsto_transmited_lines); |
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} else { |
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Serial.println("Failed to open file"); |
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} |
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while (digitalRead(WIO_KEY_B) == LOW) { |
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} |
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} |
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} |
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} |
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void setup() { |
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Serial.begin(57600); |
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pinMode(WIO_KEY_A, INPUT_PULLUP); |
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pinMode(WIO_KEY_B, INPUT_PULLUP); |
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pinMode(WIO_KEY_C, INPUT_PULLUP); |
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pinMode(WIO_5S_PRESS, INPUT_PULLUP); |
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pinMode(BUZZER_PIN, OUTPUT); |
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if (digitalRead(WIO_5S_PRESS) == HIGH) { |
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mySerial.begin(9600); |
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} |
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// Let things stablize (better than !Serial for this case) |
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delay(2000); |
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tft.begin(); |
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tft.setRotation(3); |
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Serial.print("Initializing SD card..."); |
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if (!SD.begin(SDCARD_SS_PIN, SDCARD_SPI)) { |
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Serial.println("initialization failed!"); |
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sd = false; |
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tft.drawChar(295, 223, 'S', TFT_WHITE, TFT_RED, 2); |
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tft.drawChar(307, 223, 'D', TFT_WHITE, TFT_RED, 2); |
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} else { |
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Serial.println("initialization done."); |
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sd = true; |
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} |
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// Display splash screen |
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tft.setFreeFont(&FreeSerifBoldItalic12pt7b); |
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tft.fillScreen(TFT_WHITE); |
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tft.setTextColor(TFT_RED); |
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tft.drawString("Charity Sower", 90, 10); |
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drawImage<uint16_t>("coin.bmp", 100, 50); |
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delay(5000); |
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tft.fillScreen(TFT_BLACK); // Black background |
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tft.setTextColor(TFT_YELLOW); |
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// read the stored integer from the SD card |
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coin_counter = readIntFromSD("coin_counter.txt"); |
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// for satellites position |
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// Initialize all the uninitialized TinyGPSCustom objects |
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for (int i = 0; i < 4; ++i) { |
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satNumber[i].begin(gps, "GPGSV", 4 + 4 * i); // offsets 4, 8, 12, 16 |
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elevation[i].begin(gps, "GPGSV", 5 + 4 * i); // offsets 5, 9, 13, 17 |
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azimuth[i].begin(gps, "GPGSV", 6 + 4 * i); // offsets 6, 10, 14, 18 |
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snr[i].begin(gps, "GPGSV", 7 + 4 * i); // offsets 7, 11, 15, 19 |
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} |
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if (!vcnl4040.begin()) { |
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Serial.println("Couldn't find VCNL4040 chip"); |
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while (1) |
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; |
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} |
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Serial.println("Found VCNL4040 chip"); |
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if (digitalRead(WIO_5S_PRESS) == HIGH) { |
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Serial.println("Skip Wifi Setup"); |
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skip_wifi = true; |
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} else { |
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initializeWifi(); |
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initializeNtp(); |
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wappsto.config(network_uuid, ca, client_crt, client_key, 5, NO_LOGS); |
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if (wappsto.connect()) { |
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Serial.println("Connected to Wappsto"); |
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} else { |
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Serial.println("Could not connect"); |
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} |
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Serial.println("Create network"); |
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myNetwork = wappsto.createNetwork("Location Example"); |
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Serial.println("Create Device"); |
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myDevice = myNetwork->createDevice(&myDeviceDescription); |
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Serial.println("Create Default val"); |
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myLatitudeValue = myDevice->createNumberValue(&defaultLatitudeParameter); |
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myLongitudeValue = myDevice->createNumberValue(&defaultLongitudeParameter); |
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Serial.println("Register callbacks"); |
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myLatitudeValue->onRefresh(&refreshLocationCallback); |
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myLongitudeValue->onRefresh(&refreshLocationCallback); |
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Serial.println("read last entry transmitted to wappsto"); |
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wappsto_transmited_lines = readIntFromSD("wappsto_transmitted_lines.txt"); |
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Serial.print("Last transmitted line:"); |
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Serial.println(wappsto_transmited_lines); |
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} |
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} |
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void loop() { |
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if (skip_wifi == false) { |
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Serial.println('.'); |
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wappsto.dataAvailable(); |
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delay(500); |
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} |
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while (mySerial.available() > 0) { |
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char c = mySerial.read(); |
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// Serial.print(c); |
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gps.encode(c); |
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} |
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displayInfo(); |
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displayInfoData(); |
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proximity_handler(); |
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// Screen toggle |
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if (digitalRead(WIO_KEY_C) == LOW) { // Page(menu) change |
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menu++; |
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if (menu > 1) menu = 0; |
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while (digitalRead(WIO_KEY_C) == LOW) { |
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} |
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} |
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if (coin_counter > 10) { |
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playTone(500, 1000); |
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coin_counter = 0; |
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} |
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// Handle transmitting of stored coordinates to wappstop incase we are in wifi |
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// on mode. |
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wappsto_transmit(); |
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} |
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