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| //////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// T-Display-S3 Clock //
// //
// Copyright © 2023 by //
// Zumwalt Properties, LLC. //
// All Rights Reserved. //
// //
// This software is for NON COMMERCIAL USE ONLY in accordance with the licensing agreement //
// as published on this website. //
// //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// T-Display-S3 Clock Parts List.
//
// 1) One lilygo T-Display-S3.
// 2) One 3.7V 1000ma lithium rechargable battery with 2 pin JST1.25 connector.
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Included files.
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include "TFT_eSPI.h"
#include <WiFi.h>
#include "time.h"
#include "Greg on pole small.h"
#include "settings.h"
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Global constants..
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Display.
#define DISPLAY_HEIGHT 170 // T-Display-S3 display height in pixels.
#define DISPLAY_WIDTH 320 // T-Display-S3 display width in pixels.
#define DISPLAY_BRIGHTNESS_MAX 252 // T-Display-S3 display brightness maximum.
#define DISPLAY_BRIGHTNESS_MIN 0 // T-Display-S3 display brightness minimum.
// Sprites.
#define SPRITE_BATTERY_FONT 2 // Battery sprite font size.
#define SPRITE_BATTERY_HEIGHT 30 // Battery sprite height in pixels.
#define SPRITE_BATTERY_WIDTH 100 // Battery sprite width in pixels.
#define SPRITE_DATE_FONT 4 // Date sprite font size.
#define SPRITE_DATE_HEIGHT 40 // Date sprite height in pixels.
#define SPRITE_DATE_WIDTH 200 // Date sprite width in pixels.
#define SPRITE_TIME_FONT 6 // Time sprite font size.
#define SPRITE_TIME_HEIGHT 40 // Time sprite height in pixels.
#define SPRITE_TIME_WIDTH 200 // Time sprite width in pixels.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Global variables.
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Battery.
uint32_t uVolt; // Battery voltage.
// Display (T-Display-S3 lcd display).
TFT_eSPI lcd = TFT_eSPI(); // T-Display-S3 lcd.
int lcdBacklighBrightness = DISPLAY_BRIGHTNESS_MAX; // T-Display-S3 brightness.
// Sprites.
TFT_eSprite spriteBackground = TFT_eSprite(& lcd); // Background sprite.
TFT_eSprite spriteBattery = TFT_eSprite(& lcd); // Battery sprite.
TFT_eSprite spriteDate = TFT_eSprite(& lcd); // Date sprite.
TFT_eSprite spriteTime = TFT_eSprite(& lcd); // Time sprite.
// Time.
char chDayOfMonth[3]; // Day of month (0 through 31).
const int nDaylightOffsetSeconds = 3600; // Daylight savings time offset.
char chDayofWeek[4]; // Day of week (Sunday through Saturday).
const long lGmtOffsetSeconds = +1 * 3600; // Time zone offset.
char chHour[3]; // Hour.
char chMinute[3]; // Minute.
char chMonth[4]; // Month.
const char* chNtpServer = "pool.ntp.org"; // NTP time server.
char chSecond[3]; // Second.
char chYear[5]; // Year.
// Wifi.
String stringIP; // IP address.
const char* chPassword = WIFI_PASS; // Your router password.
const char* chSsid = WIFI_SSID; // Your router SSID.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// setup().
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
void setup()
{
// Serial.
Serial.begin(115200);
// Analog.
analogReadResolution(12);
// LCD.
lcd.init();
lcd.setRotation(1);
ledcSetup(0, 10000, 8);
ledcAttachPin(38, 0);
ledcWrite(0, lcdBacklighBrightness);
// Battery.
// Sprite.
spriteBattery.createSprite(SPRITE_BATTERY_WIDTH, SPRITE_BATTERY_HEIGHT);
spriteBattery.setSwapBytes(true);
spriteBattery.setTextColor(TFT_BLACK, TFT_WHITE);
// Enable the modeul to operate from an external LiPo battery.
pinMode(15, OUTPUT);
digitalWrite(15, 1);
// Background sprite.
spriteBackground.createSprite(DISPLAY_WIDTH, DISPLAY_HEIGHT);
spriteBackground.setSwapBytes(true);
spriteBackground.setTextColor(TFT_WHITE, TFT_BLACK);
// Date sprite.
spriteDate.createSprite(SPRITE_DATE_WIDTH, SPRITE_DATE_HEIGHT);
spriteDate.setSwapBytes(true);
spriteDate.setTextColor(TFT_WHITE, TFT_BLACK);
// Time sprite.
spriteTime.createSprite(SPRITE_TIME_WIDTH, SPRITE_TIME_HEIGHT);
spriteTime.setSwapBytes(true);
spriteTime.setTextColor(TFT_WHITE, TFT_BLACK);
// Wifi.
// Start wifi.
lcd.fillScreen(TFT_BLACK);
lcd.drawString("Awaiting wifi connection...", 0, 0, 2);
WiFi.begin(chSsid, chPassword);
// Wait for a connection.
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
// Connected.
Serial.println("\nWiFi connected.");
stringIP = WiFi.localIP().toString();
lcd.fillScreen(TFT_BLACK);
lcd.drawString("Wifi connected to " + stringIP + ".", 0, 0, 2);
delay(2000);
// Time.
configTime(lGmtOffsetSeconds, nDaylightOffsetSeconds, chNtpServer);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// loop().
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
void loop(void)
{
// Local variables.
static char chBuffer[81];
static struct tm timeinfo;
// Check for time and date availability.
if(getLocalTime(& timeinfo))
{
// Time and date available, obtain hours, minutes and seconds.
strftime(chHour, sizeof(chHour), "%H", & timeinfo);
strftime(chMinute, sizeof(chMinute), "%M", & timeinfo);
strftime(chSecond, sizeof(chSecond), "%S", & timeinfo);
// Then obtain day of week, day of month, month and year.
strftime(chDayofWeek, sizeof(chDayofWeek), "%A", & timeinfo);
strftime(chDayOfMonth, sizeof(chDayOfMonth), "%d", & timeinfo);
strftime(chMonth, sizeof(chMonth), "%B", & timeinfo);
strftime(chYear, sizeof(chYear), "%Y", & timeinfo);
}
// Allow the user to adjust backlight brightness.
if((digitalRead(14) == 0) && (lcdBacklighBrightness < DISPLAY_BRIGHTNESS_MAX))
{
// Increase.
lcdBacklighBrightness += 4;
ledcSetup(0, 10000, 8);
ledcAttachPin(38, 0);
ledcWrite(0, lcdBacklighBrightness);
}
else if((digitalRead(0)) == 0 && (lcdBacklighBrightness > DISPLAY_BRIGHTNESS_MIN))
{
// Decrease.
lcdBacklighBrightness -= 4;
ledcSetup(0, 10000, 8);
ledcAttachPin(38, 0);
ledcWrite(0, lcdBacklighBrightness);
}
// Transfer "Greg_on_a pole_small" to the background sprite in order to "erase" the background sprite.
spriteBackground.pushImage(0, 0, DISPLAY_WIDTH, DISPLAY_HEIGHT, Greg_on_pole_small);
// Create and draw the time sprite onto the background sprite.
// Convert time from 24 hour to 12 hour (optional).
int nTemp = atoi(chHour);
if(nTemp > 12)
nTemp -= 12;
sprintf(chHour, "%2d", nTemp);
// Update the time sprite.
spriteTime.fillRect(0, 0, SPRITE_TIME_WIDTH, SPRITE_TIME_HEIGHT, TFT_BLACK);
sprintf(chBuffer, "%s:%s:%s", String(chHour), String(chMinute), String(chSecond));
spriteTime.drawString(String(chBuffer), (SPRITE_TIME_WIDTH / 2) - (lcd.textWidth(chBuffer, SPRITE_TIME_FONT) / 2), 0, SPRITE_TIME_FONT);
// Transfer the time sprite onto the background sprite with black transparency.
spriteTime.pushToSprite(& spriteBackground, (DISPLAY_WIDTH / 2) - (SPRITE_TIME_WIDTH / 2), 30, TFT_BLACK);
// Create and draw the date sprite onto the background sprite.
// Leading zero supress the day of month.
nTemp = atoi(chDayOfMonth);
if(nTemp < 10)
sprintf(chDayOfMonth, "%2d", nTemp);
// Update the date sprite
spriteDate.fillRect(0, 0, SPRITE_DATE_WIDTH, SPRITE_DATE_HEIGHT, TFT_BLACK);
sprintf(chBuffer, "%s, %s %s, %s", String(chDayofWeek), String(chMonth), String(chDayOfMonth), String(chYear));
spriteDate.drawString(String(chBuffer), (SPRITE_DATE_WIDTH / 2) - (lcd.textWidth(chBuffer, SPRITE_DATE_FONT) / 2), 0, SPRITE_DATE_FONT);
// Transfer the date sprite onto the background sprite with black transparency.
spriteDate.pushToSprite(& spriteBackground, (DISPLAY_WIDTH / 2) - (SPRITE_DATE_WIDTH / 2), 140, TFT_BLACK);
// Update the battery sprite.
// Read the battery voltage.
uVolt = (analogRead(4) * 2 * 3.3 * 1000) / 4096;
// Upeate the battery sprite.
spriteBattery.fillRect(0, 0, SPRITE_BATTERY_WIDTH, SPRITE_BATTERY_HEIGHT, TFT_WHITE);
spriteBattery.drawString(String(uVolt / 1000) + "." + String(uVolt % 1000) + " vDC", 0, 0, SPRITE_BATTERY_FONT);
// Transfer the battery sprite onto the background sprite with white transparency.
spriteBattery.pushToSprite(& spriteBackground, 0, 0, TFT_WHITE);
// Update the backlight brightness bar if either button is pressed.
if((digitalRead(14) == 0) || (digitalRead(0) == 0))
{
// Either button is pressed, display the backlight brightness bar.
spriteBackground.fillRect(DISPLAY_WIDTH - 16,
DISPLAY_HEIGHT - (lcdBacklighBrightness * DISPLAY_HEIGHT / DISPLAY_BRIGHTNESS_MAX),
16,
lcdBacklighBrightness * DISPLAY_HEIGHT / DISPLAY_BRIGHTNESS_MAX,
TFT_WHITE);
}
// With the background sprite now completed, transfer the background sprite to the LCD.
spriteBackground.pushSprite(0, 0);
// Delay 100 milliseconds.
delay(100);
} |
