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Copy pathESP32-GPS-CLOCK-V1.ino
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ESP32-GPS-CLOCK-V1.ino
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/*
* ESP32-GPS-CLOCK-V1.ino
*
* Note: An enhanced version of this project with buttons for better device configuration
* is available at: https://github.com/desiFish/ESP32-GPS-CLOCK-V2
*
* Copyright (C) 2024 desiFish
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* Pin Configuration:
* LCD:
* - LCD Brightness: GPIO4 (PWM)
* - LCD Enable: GPIO33
* - LCD SPI: GPIO18 (CLK), GPIO23 (MOSI), GPIO5 (CS)
*
* Sensors:
* - BME280: I2C (SDA: GPIO21, SCL: GPIO22)
* - BH1750: I2C (shares bus with BME280)
*
* GPS:
* - RX: GPIO16
* - TX: GPIO17
* - Power Control: GPIO19
*
* Buzzer:
* - Control: GPIO25
*/
#include <SPI.h>
#include <TinyGPSPlus.h>
#include <U8g2lib.h>
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <BH1750.h>
#include <TimeLib.h>
#include <Arduino.h>
#include <WiFi.h>
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <ElegantOTA.h>
// Data Storage
#include <Preferences.h>
// Preference library object or instance
Preferences pref;
// your wifi name and password (saved in preference library)
String ssid;
String password;
/**
* @brief WiFi Manager HTML template
* Contains responsive design for configuration portal
* Styles included for better mobile experience
*/
const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE html>
<html>
<head>
<title>Wi-Fi Manager</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
html {
font-family: Arial, Helvetica, sans-serif;
display: inline-block;
text-align: center;
}
h1 {
font-size: 1.8rem;
color: white;
}
p {
font-size: 1.4rem;
}
.topnav {
overflow: hidden;
background-color: #0A1128;
}
body {
margin: 0;
}
.content {
padding: 5%;
}
.card-grid {
max-width: 800px;
margin: 0 auto;
display: grid;
grid-gap: 2rem;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.card {
background-color: white;
box-shadow: 2px 2px 12px 1px rgba(140,140,140,.5);
}
.card-title {
font-size: 1.2rem;
font-weight: bold;
color: #034078
}
input[type=submit] {
border: none;
color: #FEFCFB;
background-color: #034078;
padding: 15px 15px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
width: 100px;
margin-right: 10px;
border-radius: 4px;
transition-duration: 0.4s;
}
input[type=submit]:hover {
background-color: #1282A2;
}
input[type=text], input[type=number], select {
width: 50%;
padding: 12px 20px;
margin: 18px;
display: inline-block;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
}
label {
font-size: 1.2rem;
}
.value{
font-size: 1.2rem;
color: #1282A2;
}
.state {
font-size: 1.2rem;
color: #1282A2;
}
button {
border: none;
color: #FEFCFB;
padding: 15px 32px;
text-align: center;
font-size: 16px;
width: 100px;
border-radius: 4px;
transition-duration: 0.4s;
}
.button-on {
background-color: #034078;
}
.button-on:hover {
background-color: #1282A2;
}
.button-off {
background-color: #858585;
}
.button-off:hover {
background-color: #252524;
}
</style>
</head>
<body>
<div class="topnav">
<h1>Wi-Fi Manager</h1>
</div>
<div class="content">
<div class="card-grid">
<div class="card">
<form action="/wifi" method="POST">
<p>
<label for="ssid">SSID</label>
<input type="text" id ="ssid" name="ssid"><br>
<label for="pass">Password</label>
<input type="text" id ="pass" name="pass"><br>
<input type ="submit" value ="Submit">
</p>
</form>
</div>
</div>
</div>
</body>
</html>
)rawliteral";
// Search for parameter in HTTP POST request
const char *PARAM_INPUT_1 = "ssid";
const char *PARAM_INPUT_2 = "pass";
const String newHostname = "NiniClock"; // any name that you desire
AsyncWebServer server(80);
// Elegant OTA related task
bool updateInProgress = false;
unsigned long ota_progress_millis = 0;
Adafruit_BME280 bme; // object environmental sensor
float temp2, hum;
BH1750 lightMeter; // object light sensor
U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, 18, 23, 5, U8X8_PIN_NONE);
#define lcdBrightnessPin 4 // PWM pin for LCD backlight control
#define lcdEnablePin 33 // LCD enable pin
#define buzzerPin 25 // Buzzer control pin
char week[7][12] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char monthChar[12][12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
// GPS things
static const int RXPin = 16, TXPin = 17; // GPS UART pins
TinyGPSPlus gps;
#define gpsPin 19 // GPS power control pin
// variables for holding time data globally
byte days = 0, months = 0, hours = 0, minutes = 0, seconds = 0;
int years = 0;
bool isDark = false; // Tracks ambient light state
// LUX (BH1750) update frequency
unsigned long lastTime1 = 0; // Last light sensor update
const long timerDelay1 = 2000; // Light sensor update interval (2 seconds)
// BME280 update frequency
unsigned long lastTime2 = 0; // Last temperature sensor update
const long timerDelay2 = 60000; // Temperature update interval (1 minute)
byte pulse = 0; // Used for blinking time separator
time_t prevDisplay = 0; // when the digital clock was displayed
// for creating task attached to CORE 0 of CPU
TaskHandle_t loop1Task;
// Add this with other global variables
byte currentBrightness = 250; // Track current brightness level
/**
* @brief Callback when OTA update starts
* Shows update status on LCD display
*/
void onOTAStart()
{
// Log when OTA has started
updateInProgress = true;
Serial.println("OTA update started!");
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("OTA UPDATE");
u8g2.setCursor(1, 32);
u8g2.print("HAVE STARTED");
u8g2.sendBuffer();
delay(1000);
// <Add your own code here>
}
/**
* @brief Progress callback during OTA update
* @param current Number of bytes transferred
* @param final Total number of bytes
* Shows progress on LCD with byte counts
*/
void onOTAProgress(size_t current, size_t final)
{
// Log
if (millis() - ota_progress_millis > 500)
{
ota_progress_millis = millis();
Serial.printf("OTA Progress Current: %u bytes, Final: %u bytes\n", current, final);
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("OTA UPDATE");
u8g2.setCursor(1, 32);
u8g2.print("UNDER PROGRESS");
u8g2.setCursor(1, 44);
u8g2.print("Done: ");
u8g2.print(current);
u8g2.print(" bytes");
u8g2.setCursor(1, 56);
u8g2.print("Total: ");
u8g2.print(final);
u8g2.print(" bytes");
u8g2.sendBuffer();
}
}
/**
* @brief Callback when OTA update ends
* @param success Boolean indicating if update was successful
* Shows completion status on LCD display
*/
void onOTAEnd(bool success)
{
// Log when OTA has finished
if (success)
{
Serial.println("OTA update finished successfully!");
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("OTA UPDATE");
u8g2.setCursor(1, 32);
u8g2.print("COMPLETED!");
u8g2.sendBuffer();
}
else
{
Serial.println("There was an error during OTA update!");
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("OTA UPDATE");
u8g2.setCursor(1, 32);
u8g2.print("HAVE FAILED");
u8g2.sendBuffer();
}
// <Add your own code here>
updateInProgress = false;
delay(1000);
}
void setup()
{
Serial.begin(115200);
Wire.begin();
Wire.setClock(400000);
pinMode(gpsPin, OUTPUT);
digitalWrite(gpsPin, HIGH); // you can connect the gps directly to 3.3V pin
pinMode(lcdBrightnessPin, OUTPUT);
analogWrite(lcdBrightnessPin, 250);
pinMode(lcdEnablePin, OUTPUT);
digitalWrite(lcdEnablePin, HIGH);
pinMode(buzzerPin, OUTPUT);
digitalWrite(buzzerPin, HIGH);
delay(50);
digitalWrite(buzzerPin, LOW);
Serial1.begin(9600, SERIAL_8N1, RXPin, TXPin);
if (!lightMeter.begin(BH1750::ONE_TIME_HIGH_RES_MODE))
errorMsgPrint("BH1750", "CANNOT FIND");
if (!pref.begin("database", false)) // open database
errorMsgPrint("DATABASE", "ERROR INITIALIZE");
u8g2.begin();
u8g2.clearBuffer();
u8g2.drawLine(0, 17, 127, 17);
u8g2.setFont(u8g2_font_7x14B_mr);
u8g2.setCursor(12, 30);
u8g2.print("GPS Clock");
u8g2.drawLine(0, 31, 127, 31);
u8g2.sendBuffer();
delay(1000);
/*u8g2.clearBuffer();
u8g2.drawBox(0, 0, 127, 63);
u8g2.sendBuffer();
delay(500);*/
if (!bme.begin())
errorMsgPrint("BME280", "CANNOT FIND");
Serial.println("BME Ready");
// Set up oversampling and filter initialization
bme.setSampling(Adafruit_BME280::MODE_NORMAL,
Adafruit_BME280::SAMPLING_X16, // temperature
Adafruit_BME280::SAMPLING_NONE, // pressure
Adafruit_BME280::SAMPLING_X16, // humidity
Adafruit_BME280::FILTER_X16, // filter
Adafruit_BME280::STANDBY_MS_1000); // set delay between measurements
if (getCpuFrequencyMhz() != 160)
setCpuFrequencyMhz(160); // if not 160MHz, set to 160MHz
// wifi manager
if (true)
{
bool wifiConfigExist = pref.isKey("ssid");
if (!wifiConfigExist)
{
pref.putString("ssid", "");
pref.putString("password", "");
}
ssid = pref.getString("ssid", "");
password = pref.getString("password", "");
if (ssid == "" || password == "")
{
Serial.println("No values saved for ssid or password");
// Connect to Wi-Fi network with SSID and password
Serial.println("Setting AP (Access Point)");
// NULL sets an open Access Point
WiFi.softAP("WIFI_MANAGER", "WIFImanager");
IPAddress IP = WiFi.softAPIP();
Serial.print("AP IP address: ");
Serial.println(IP);
wifiManagerInfoPrint();
// Web Server Root URL
server.on("/wifi", HTTP_GET, [](AsyncWebServerRequest *request)
{ request->send(200, "text/html", index_html); });
server.on("/wifi", HTTP_POST, [](AsyncWebServerRequest *request)
{
int params = request->params();
for (int i = 0; i < params; i++) {
const AsyncWebParameter* p = request->getParam(i);
if (p->isPost()) {
// HTTP POST ssid value
if (p->name() == PARAM_INPUT_1) {
ssid = p->value();
Serial.print("SSID set to: ");
Serial.println(ssid);
ssid.trim();
pref.putString("ssid", ssid);
}
// HTTP POST pass value
if (p->name() == PARAM_INPUT_2) {
password = p->value();
Serial.print("Password set to: ");
Serial.println(password);
password.trim();
pref.putString("password", password);
}
//Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
}
}
request->send(200, "text/plain", "Done. Device will now restart.");
delay(3000);
ESP.restart(); });
server.begin();
WiFi.onEvent(WiFiEvent);
while (true)
;
}
WiFi.mode(WIFI_STA);
WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE);
WiFi.setHostname("Nini_GClock");
WiFi.begin(ssid.c_str(), password.c_str());
Serial.println("");
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("WAITING FOR WIFI");
u8g2.setCursor(1, 32);
u8g2.print("TO CONNECT");
u8g2.sendBuffer();
/*
count variable stores the status of WiFi connection. 0 means NOT CONNECTED. 1 means CONNECTED
*/
bool count = 1;
while (WiFi.waitForConnectResult() != WL_CONNECTED)
{
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("COULD NOT CONNECT");
u8g2.setCursor(1, 32);
u8g2.print("CHECK CONNECTION");
u8g2.setCursor(1, 44);
u8g2.print("OR, RESET AND");
u8g2.setCursor(1, 56);
u8g2.print("TRY AGAIN");
u8g2.sendBuffer();
Serial.println("Connection Failed");
delay(6000);
count = 0;
break;
}
if (count)
{ // if wifi is connected
Serial.println(ssid);
Serial.println(WiFi.localIP());
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 20);
u8g2.print("WIFI CONNECTED");
u8g2.setCursor(1, 42);
u8g2.print(WiFi.localIP());
u8g2.sendBuffer();
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request)
{ request->send(200, "text/plain", "Hi! Please add "
"/update"
" on the above address."); });
ElegantOTA.begin(&server); // Start ElegantOTA
// ElegantOTA callbacks
ElegantOTA.onStart(onOTAStart);
ElegantOTA.onProgress(onOTAProgress);
ElegantOTA.onEnd(onOTAEnd);
server.begin();
Serial.println("HTTP server started");
delay(3500);
}
}
// Wifi related stuff END
xTaskCreatePinnedToCore(
loop1, // Task function.
"loop1Task", // name of task.
10000, // Stack size of task
NULL, // parameter of the task
1, // priority of the task
&loop1Task, // Task handle to keep track of created task
0); // pin task to core 0
pref.end();
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_7x14B_mr);
u8g2.setCursor(44, 30);
u8g2.print("HELLO!");
u8g2.setCursor(36, 52);
u8g2.print("NINI");
u8g2.setFont(u8g2_font_streamline_food_drink_t);
u8g2.drawUTF8(80, 54, "U+4"); // birthday cake icon
u8g2.sendBuffer();
delay(2500);
temp2 = bme.readTemperature();
hum = bme.readHumidity();
}
// RUNS ON CORE 0
void loop1(void *pvParameters)
{
for (;;)
{
if ((millis() - lastTime1) > timerDelay1)
{
lightMeter.configure(BH1750::ONE_TIME_HIGH_RES_MODE);
float lux;
while (!lightMeter.measurementReady(true))
{
yield();
}
lux = lightMeter.readLightLevel();
Serial.println("LUXRaw: ");
Serial.println(lux);
if (true)
{ // is mute-if-dark enabled by user
if (lux == 0)
isDark = true;
else
isDark = false;
}
// Improved brightness control with smooth transitions
if (true)
{
byte targetBrightness;
if (lux == 0)
{
targetBrightness = 5;
}
else
{
byte val1 = constrain(lux, 1, 120);
targetBrightness = map(val1, 1, 120, 40, 255);
}
// Improved smooth transition with dynamic step size
if (currentBrightness != targetBrightness)
{
int diff = targetBrightness - currentBrightness;
// Calculate step size based on difference
// Larger differences = larger steps, smaller differences = smaller steps
byte stepSize = max(1, min(abs(diff) / 4, 15));
if (diff > 0)
{
currentBrightness = min(255, currentBrightness + stepSize);
}
else
{
currentBrightness = max(5, currentBrightness - stepSize);
}
}
Serial.println("Brightness: ");
Serial.println(currentBrightness);
analogWrite(lcdBrightnessPin, currentBrightness);
}
lastTime1 = millis();
}
if ((millis() - lastTime2) > timerDelay2)
{
temp2 = bme.readTemperature();
// press = bme.readPressure() / 100.0F;
hum = bme.readHumidity();
lastTime2 = millis();
}
if (!isDark)
{ // if mute on dark is not active (or false)
if (true)
{
if ((minutes == 0) && (seconds == 0))
{
buzzer(600, 1);
}
}
if (true)
{
if ((minutes == 30) && (seconds == 0))
{
buzzer(500, 2);
}
}
}
delay(100);
}
}
// RUNS ON CORE 1
void loop(void)
{ // Main loop for display and GPS operations
if (true)
ElegantOTA.loop();
while (gps.hdop.hdop() > 100 && gps.satellites.value() < 2)
{ // if gps signal is weak
gpsInfo("Waiting for GPS...");
}
while (Serial1.available())
{
if (gps.encode(Serial1.read()))
{ // process gps messages
// when TinyGPSPlus reports new data...
unsigned long age = gps.time.age();
if (age < 500)
{
// set the Time according to the latest GPS reading
setTime(gps.time.hour(), gps.time.minute(), gps.time.second(), gps.date.day(), gps.date.month(), gps.date.year());
adjustTime(19800);
}
}
}
days = day();
months = month();
years = year();
hours = hourFormat12();
minutes = minute();
seconds = second();
if (!updateInProgress)
{ // if OTA update is not in progress
if (timeStatus() != timeNotSet)
{ // if time is set
if (now() != prevDisplay)
{ // update the display only if the time has changed
prevDisplay = now();
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_pixzillav1_tr);
u8g2.setCursor(5, 15);
u8g2.print(temp2, 2);
u8g2.setFont(u8g2_font_threepix_tr);
u8g2.setCursor(40, 8);
u8g2.print("o");
u8g2.setFont(u8g2_font_pixzillav1_tr);
u8g2.setCursor(45, 15);
u8g2.print("C ");
u8g2.setCursor(64, 15);
u8g2.print(hum, 2);
u8g2.setCursor(100, 15);
u8g2.print("%rH");
u8g2.drawLine(0, 17, 127, 17);
u8g2.setFont(u8g2_font_7x14B_mr);
u8g2.setCursor(8, 30);
if (days < 10)
u8g2.print("0");
u8g2.print(days);
byte x = days % 10;
u8g2.setFont(u8g2_font_profont10_mr);
u8g2.setCursor(22, 25);
if (days == 11 || days == 12 || days == 13)
u8g2.print("th");
else if (x == 1)
u8g2.print("st");
else if (x == 2)
u8g2.print("nd");
else if (x == 3)
u8g2.print("rd");
else
u8g2.print("th");
u8g2.setFont(u8g2_font_7x14B_mr);
u8g2.setCursor(34, 30);
u8g2.print(monthChar[months - 1]);
u8g2.setCursor(58, 30);
u8g2.print(years);
u8g2.setCursor(102, 30);
u8g2.print(week[weekday() - 1]);
u8g2.drawLine(0, 31, 127, 31);
if (days == 6 && months == 9)
{ // special message on birthday
u8g2.setFont(u8g2_font_6x13_tr);
u8g2.setCursor(5, 43);
u8g2.print("HAPPY BIRTHDAY NINI!");
u8g2.setFont(u8g2_font_logisoso16_tr);
u8g2.setCursor(15, 63);
if (hours < 10)
u8g2.print("0");
u8g2.print(hours);
if (pulse == 0)
u8g2.print(":");
else
u8g2.print("");
u8g2.setCursor(41, 63);
if (minutes < 10)
u8g2.print("0");
u8g2.print(minutes);
if (pulse == 0)
u8g2.print(":");
else
u8g2.print("");
u8g2.setCursor(67, 63);
if (seconds < 10)
u8g2.print("0");
u8g2.print(seconds);
u8g2.setCursor(95, 63);
if (!isAM())
u8g2.print("PM");
else
u8g2.print("AM");
u8g2.setFont(u8g2_font_waffle_t_all);
if (!isDark) // if mute on dark is not active (or false)
u8g2.drawUTF8(5, 54, "\ue271"); // symbol for hourly/half-hourly alarm
if (WiFi.status() == WL_CONNECTED)
u8g2.drawUTF8(5, 64, "\ue2b5"); // wifi-active symbol
u8g2.sendBuffer();
}
else
{
// normal display
u8g2.setFont(u8g2_font_logisoso30_tn);
u8g2.setCursor(15, 63);
if (hours < 10)
u8g2.print("0");
u8g2.print(hours);
if (pulse == 0)
u8g2.print(":");
else
u8g2.print("");
u8g2.setCursor(63, 63);
if (minutes < 10)
u8g2.print("0");
u8g2.print(minutes);
u8g2.setFont(u8g2_font_tenthinnerguys_tu);
u8g2.setCursor(105, 42);
if (seconds < 10)
u8g2.print("0");
u8g2.print(seconds);
u8g2.setCursor(105, 63);
if (!isAM())
u8g2.print("PM");
else
u8g2.print("AM");
u8g2.setFont(u8g2_font_waffle_t_all);
if (!isDark) // if mute on dark is not active (or false)
u8g2.drawUTF8(103, 52, "\ue271"); // symbol for hourly/half-hourly alarm
if (WiFi.status() == WL_CONNECTED)
u8g2.drawUTF8(112, 52, "\ue2b5"); // wifi-active symbol
u8g2.sendBuffer();
}
if (pulse == 1)
pulse = 0;
else if (pulse == 0)
pulse = 1;
}
}
}
}
/**
* @brief Smart delay function for GPS data processing
* @param ms Delay duration in milliseconds
* Ensures GPS data is processed during delay period
*/
static void smartDelay(unsigned long ms)
{
unsigned long start = millis();
do
{
while (Serial1.available())
gps.encode(Serial1.read());
} while (millis() - start < ms);
}
/**
* @brief Generate beep pattern
* @param Delay Duration of each beep in milliseconds
* @param count Number of beeps to generate
* Used for hourly and half-hourly chimes
*/
void buzzer(int Delay, byte count)
{
for (int i = 0; i < count; i++)
{
digitalWrite(buzzerPin, HIGH);
delay(Delay);
digitalWrite(buzzerPin, LOW);
delay(Delay);
}
}
/**
* @brief Display GPS information screen
* @param msg Status message to display
* Shows:
* - Number of satellites
* - HDOP value
* - Speed in km/h
* - Fix age
* - Altitude
* - Latitude/Longitude
*/
void gpsInfo(String msg)
{
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 9);
u8g2.print(msg);
u8g2.setFont(u8g2_font_5x7_mr);
u8g2.setCursor(1, 24);
u8g2.print("Satellites");
u8g2.setCursor(25, 36);
u8g2.print(gps.satellites.value());
u8g2.setCursor(58, 24);
u8g2.print("HDOP");
u8g2.setCursor(58, 36);
u8g2.print(gps.hdop.hdop());
u8g2.setCursor(92, 24);
u8g2.print("Speed");
u8g2.setCursor(86, 36);
u8g2.print(int(gps.speed.kmph()));
u8g2.setFont(u8g2_font_micro_tr);
u8g2.print("kmph");
u8g2.setFont(u8g2_font_5x7_mr);
u8g2.setCursor(1, 51);
u8g2.print("Fix Age");
u8g2.setCursor(6, 63);
u8g2.print(gps.time.age());
u8g2.print("ms"); //
u8g2.setCursor(42, 51);
u8g2.print("Altitude");
u8g2.setCursor(42, 63);
u8g2.print(gps.altitude.meters());
u8g2.print("m");
u8g2.setCursor(88, 51);
u8g2.print("Lat & Lng");
u8g2.setCursor(88, 57);
u8g2.setFont(u8g2_font_4x6_tn);
u8g2.print(gps.location.lat(), 7);
u8g2.setCursor(88, 64);
u8g2.print(gps.location.lng(), 7);
u8g2.sendBuffer();
smartDelay(900);
}
/**
* @brief Display WiFi configuration instructions
* Shows steps to:
* 1. Enable WiFi
* 2. Connect to AP
* 3. Enter credentials
*/
void wifiManagerInfoPrint()
{
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 10);
u8g2.print("Turn ON WiFi");
u8g2.setCursor(1, 22);
u8g2.print("on your phone/laptop.");
u8g2.setCursor(1, 34);
u8g2.print("Connect to->");
u8g2.setCursor(1, 46);
u8g2.print("SSID: WIFI_MANAGER");
u8g2.setCursor(1, 58);
u8g2.print("Password: WIFImanager");
u8g2.sendBuffer();
}
/**
* @brief Handle WiFi connection events
* @param event WiFi event type
* Shows configuration portal access instructions
* when device is connected to in AP mode
*/
void WiFiEvent(WiFiEvent_t event)
{
if (event == ARDUINO_EVENT_WIFI_AP_STACONNECTED)
{
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(1, 10);
u8g2.print("On browser, go to");
u8g2.setCursor(1, 22);
u8g2.print("192.168.4.1/wifi");
u8g2.setCursor(1, 34);
u8g2.print("Enter the your Wifi");
u8g2.setCursor(1, 46);
u8g2.print("credentials of 2.4Ghz");
u8g2.setCursor(1, 58);
u8g2.print("network. Then Submit. ");
u8g2.sendBuffer();
}
}
/**
* @brief Display error message with countdown
* @param device Name of device with error
* @param msg Error message to display
* @note Shows message for 5 seconds with countdown
*/
void errorMsgPrint(String device, String msg)
{
byte i = 5;
while (i > 0)
{
u8g2.clearBuffer();
u8g2.setFont(u8g2_font_t0_11_mf);
u8g2.setCursor(5, 10);
u8g2.print("ERROR: " + device);
u8g2.drawLine(0, 11, 127, 11);
u8g2.setCursor(5, 22);
u8g2.print(msg);
u8g2.setFont(u8g2_font_luRS08_tr);
u8g2.setCursor(60, 51);
u8g2.print(i);
u8g2.sendBuffer();
delay(1000);
i--;
}
}