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/* ESP Weather Display using an EPD 2.9" Display, obtains data from Open Weather Map, decodes it and then displays it.
####################################################################################################################################
*/
#include "owm_credentials.h"
#include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson
#include <WiFi.h> // Built-in
#include "time.h"
#include <SPI.h>
#define ENABLE_GxEPD2_display 0
#include <GxEPD2_BW.h>
//#include <GxEPD2_3C.h>
#include <U8g2_for_Adafruit_GFX.h>
#include "forecast_record.h"
//#include "lang.h" // Localisation (English)
//#include "lang_cz.h" // Localisation (Czech)
//#include "lang_es.h" // Localisation (Spanish)
#include "lang_fr.h" // Localisation (French)
//#include "lang_gr.h" // Localisation (German)
//#include "lang_it.h" // Localisation (Italian)
//#include "lang_nl.h" // Localisation (Dutch)
//#include "lang_no.h" // Localisation (Norwegian)
//#include "lang_pl.h" // Localisation (Polish)
//#include "lang_pt.h" // Localisation (Portugese)
#define SCREEN_WIDTH 296
#define SCREEN_HEIGHT 128
enum alignmentType {LEFT, RIGHT, CENTER};
// Connections
/*
static const uint8_t EPD_BUSY = 3; // to EPD BUSY
static const uint8_t EPD_CS = 7; // to EPD CS
static const uint8_t EPD_RST = 2; // to EPD RST
static const uint8_t EPD_DC = 1; // to EPD DC
static const uint8_t EPD_SCK = 4; // to EPD CLK
static const uint8_t EPD_MISO = 5; // Master-In Slave-Out not used, as no data from display
static const uint8_t EPD_MOSI = 6; // to EPD DIN
*/
static const uint8_t EPD_BUSY = 1; // to EPD BUSY
static const uint8_t EPD_CS = 4; // to EPD CS
static const uint8_t EPD_RST = 2; // to EPD RST
static const uint8_t EPD_DC = 3; // to EPD DC
static const uint8_t EPD_SCK = 5; // to EPD CLK
// ESP32 CS(SS)=27,SCL=18,SDA=23,BUSY=13,RES=12,DC=14
GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 27, /*DC=*/ 14, /*RST=*/ 12, /*BUSY=*/ 13)); // GDEM029T94 128x296, SSD1680
U8G2_FOR_ADAFRUIT_GFX u8g2Fonts; // Select u8g2 font from here: https://github.com/olikraus/u8g2/wiki/fntlistall
// Using fonts:
// u8g2_font_helvB08_tf
// u8g2_font_helvB10_tf
// u8g2_font_helvB12_tf
// u8g2_font_helvB14_tf
// u8g2_font_helvB18_tf
// u8g2_font_helvB24_tf
bool LargeIcon = true, SmallIcon = false;
#define Large 7 // For best results use odd numbers
#define Small 3 // For best results use odd numbers
String time_str, date_str, ForecastDay; // strings to hold time and date
int wifi_signal, CurrentHour = 0, CurrentMin = 0, CurrentSec = 0;
long StartTime = 0;
//################ PROGRAM VARIABLES and OBJECTS ##########################################
#define max_readings 25 // In groups of 3-hours (3-days = 3 x 8 = 24)
Forecast_record_type WxConditions[1];
Forecast_record_type WxForecast[max_readings];
#include <common.h>
float pressure_readings[max_readings] = {0};
float temperature_readings[max_readings] = {0};
float humidity_readings[max_readings] = {0};
float rain_readings[max_readings] = {0};
float snow_readings[max_readings] = {0};
long SleepDuration = 30; // Temps de sommeil en minutes, aligné sur la limite de la minute la plus proche, donc si 30, la mise à jour se fera toujours à 00 ou 30 heures passées.
int WakeupHour = 7; // Ne pas se réveiller avant 07h00 pour économiser la batterie
int SleepHour = 23; // Mise en veille après (23+1) 00:00 pour économiser la batterie
typedef struct { // For current Day and Day 1, 2, 3, etc
String Time;
float High;
float Low;
} HL_record_type;
HL_record_type HLReadings[max_readings];
// Mesure Batterie...............................
#define pinVb 35 //* mesure BATT */
#define VccMin 3.2 //* Niveau minimum attendu de BAT, en Volts */
#define VccMax 4.2 //* Niveau maximum attendu de BAT, en Volts */
#define VccRange VccMax - VccMin
const float Ratio = 100.0 ; // Eviter les divisions par la suite
//#########################################################################################
void setup() {
StartTime = millis();
//Serial.begin(115200);
display.init(115200, true, 2, false);
//while (!Serial);
//Serial.println(__FILE__);
if (StartWiFi() == WL_CONNECTED && SetupTime() == true) {
bool WakeUp = false;
if (WakeupHour > SleepHour)
WakeUp = (CurrentHour >= WakeupHour || CurrentHour <= SleepHour);
else
WakeUp = (CurrentHour >= WakeupHour && CurrentHour <= SleepHour);
if (WakeUp) {
InitialiseDisplay(); // Give screen time to initialise by getting weather data!
byte Attempts = 1;
bool RxWeather = false, RxForecast = false;
WiFiClient client; // wifi client object
while ((RxWeather == false || RxForecast == false) && Attempts <= 2) { // Try up-to 2 time for Weather and Forecast data
if (RxWeather == false) RxWeather = obtain_wx_data(client, "weather");
if (RxForecast == false) RxForecast = obtain_wx_data(client, "forecast");
Attempts++;
}
if (RxWeather && RxForecast) { // Only if received both Weather or Forecast proceed
GetHighsandLows();;
StopWiFi(); // Reduces power consumption
DisplayWeather();
display.display(false); // Full screen update mode
}
}
}
BeginSleep();
}
//#########################################################################################
void loop() { // this will never run!
}
//#########################################################################################
void BeginSleep() {
display.powerOff();
long SleepTimer = (SleepDuration * 60 - ((CurrentMin % SleepDuration) * 60 + CurrentSec)); //Some ESP32 are too fast to maintain accurate time
esp_sleep_enable_timer_wakeup((SleepTimer + 20) * 1000000LL); // Added +20 seconnds to cover ESP32 RTC timer source inaccuracies
#ifdef BUILTIN_LED
pinMode(BUILTIN_LED, INPUT); // If it's On, turn it off and some boards use GPIO-5 for SPI-SS, which remains low after screen use
digitalWrite(BUILTIN_LED, HIGH);
#endif
Serial.println("Entering " + String(SleepTimer) + "-secs of sleep time");
Serial.println("Awake for : " + String((millis() - StartTime) / 1000.0, 3) + "-secs");
Serial.println("Starting deep-sleep period...");
esp_deep_sleep_start(); // Sleep for e.g. 30 minutes
}
//#########################################################################################
void DisplayWeather() { // 2.9" e-paper display is 296x128 resolution
UpdateLocalTime();
Draw_Heading_Section(); // Tligne de l'afficheur
Draw_Main_Weather_Section(); // Partie centrale de l'écran pour la localisation, la température, le bulletin météo, le symbole Wx et la direction du vent.
int Forecast = 2, Dposition = 0;
String StartTime = "08:00" + String((Units == "M" ? "" : "a"));
String MidTime = "09:00" + String((Units == "M" ? "" : "a"));
String FinishTime = "10:00" + String((Units == "M" ? "" : "a"));
do {
String Ftime = ConvertUnixTime(WxForecast[Forecast].Dt + WxConditions[0].Timezone).substring(0, (Units == "M" ? 5 : 6));
if (Ftime == StartTime || Ftime == MidTime || Ftime == FinishTime) {
DisplayForecastWeather(18, 104, Forecast, Dposition, 57); // Coordonnées x,y, numéro de prévision, position, largeur de l'espacement
Dposition++;
}
Forecast++;
} while (Forecast < max_readings);
DrawBattery(160, 12);
}
//#########################################################################################
void Draw_Heading_Section() {
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
drawString(27, 15, City, CENTER);
drawString(2, 1, time_str + " " + date_str, LEFT);
display.drawLine(0, 11, 150 + (Units == "I"?15:0), 11, GxEPD_BLACK);
}
//#########################################################################################
void DisplayForecastWeather(int x, int y, int forecast, int Dposition, int fwidth) {
GetForecastDay(WxForecast[forecast].Dt);
x += fwidth * Dposition;
DisplayConditionsSection(x + 10, y, WxForecast[forecast].Icon, SmallIcon);
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
drawString(x + 8, y - 24, ForecastDay, CENTER);
drawString(x + 18, y + 12, String(HLReadings[Dposition].High, 0) + "°/" + String(HLReadings[Dposition].Low, 0) + "°", CENTER);
display.drawRect(x - 18, y - 27, fwidth, 51, GxEPD_BLACK);
}
//#########################################################################################
void Draw_Main_Weather_Section() {
DisplayConditionsSection(205, 45, WxConditions[0].Icon, LargeIcon);
u8g2Fonts.setFont(u8g2_font_helvB14_tf);
drawString(3, 33, String(WxConditions[0].Temperature, 1) + "° / " + String(WxConditions[0].Humidity, 0) + "%", LEFT);
u8g2Fonts.setFont(u8g2_font_helvB10_tf);
DrawWind(270, 37, WxConditions[0].Winddir, WxConditions[0].Windspeed);
if (WxConditions[0].Rainfall > 0.005 || WxConditions[0].Snowfall > 0.005) {
if (WxConditions[0].Rainfall > 0.005) drawString(170, 66, String(WxConditions[0].Rainfall, 1) + (Units == "M" ? "mm " : "in ") + TXT_PRECIPITATION_SOON, LEFT);
else drawString(170, 66, String(WxConditions[0].Snowfall, 1) + (Units == "M" ? "mm " : "in ") + TXT_PRECIPITATION_SOON, LEFT); // Rain has precedence over snow if both reported!
}
DrawPressureTrend(3, 49, WxConditions[0].Pressure, WxConditions[0].Trend);
u8g2Fonts.setFont(u8g2_font_helvB12_tf);
String Wx_Description = WxConditions[0].Forecast0;
drawString(2, 63, TitleCase(Wx_Description), LEFT);
display.drawLine(0, 77, 296, 77, GxEPD_BLACK);
DisplayAstronomySection(170, 64); // Astronomy section Sun rise/set and Moon phase plus icon
}
//#########################################################################################
void DisplayAstronomySection(int x, int y) {
display.drawRect(x, y + 13, 126, 51, GxEPD_BLACK);
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
SunRise(x + 64, y + 23);
drawString(x + 80, y + 20, ConvertUnixTime(WxConditions[0].Sunrise + WxConditions[0].Timezone).substring(0, (Units == "M" ? 5 : 7)), LEFT);
SunSet(x + 64, y + 38);
drawString(x + 80, y + 35, ConvertUnixTime(WxConditions[0].Sunset + WxConditions[0].Timezone).substring(0, (Units == "M" ? 5 : 7)), LEFT);
time_t now = time(NULL);
struct tm * now_utc = gmtime(&now);
const int day_utc = now_utc->tm_mday;
const int month_utc = now_utc->tm_mon + 1;
const int year_utc = now_utc->tm_year + 1900;
drawString(x + 6, y + 53, MoonPhase(day_utc, month_utc, year_utc, Hemisphere), LEFT);
DrawMoon(x - 12, y - 1, day_utc, month_utc, year_utc, Hemisphere);
}
//#########################################################################################
String MoonPhase(int d, int m, int y, String hemisphere) {
int c, e;
double jd;
int b;
if (m < 3) {
y--;
m += 12;
}
++m;
c = 365.25 * y;
e = 30.6 * m;
jd = c + e + d - 694039.09; /* jd is total days elapsed */
jd /= 29.53059; /* divide by the moon cycle (29.53 days) */
b = jd; /* int(jd) -> b, take integer part of jd */
jd -= b; /* subtract integer part to leave fractional part of original jd */
b = jd * 8 + 0.5; /* scale fraction from 0-8 and round by adding 0.5 */
b = b & 7; /* 0 and 8 are the same phase so modulo 8 for 0 */
if (hemisphere == "south") b = 7 - b;
if (b == 0) return TXT_MOON_NEW; // New; 0% illuminated
if (b == 1) return TXT_MOON_WAXING_CRESCENT; // Waxing crescent; 25% illuminated
if (b == 2) return TXT_MOON_FIRST_QUARTER; // First quarter; 50% illuminated
if (b == 3) return TXT_MOON_WAXING_GIBBOUS; // Waxing gibbous; 75% illuminated
if (b == 4) return TXT_MOON_FULL; // Full; 100% illuminated
if (b == 5) return TXT_MOON_WANING_GIBBOUS; // Waning gibbous; 75% illuminated
if (b == 6) return TXT_MOON_THIRD_QUARTER; // Third quarter; 50% illuminated
if (b == 7) return TXT_MOON_WANING_CRESCENT; // Waning crescent; 25% illuminated
return "";
}
//#########################################################################################
void DrawMoon(int x, int y, int dd, int mm, int yy, String hemisphere) {
const int diameter = 34;
double Phase = NormalizedMoonPhase(dd, mm, yy);
hemisphere.toLowerCase();
if (hemisphere == "south") Phase = 1 - Phase;
// Draw dark part of moon
display.fillCircle(x + diameter - 1, y + diameter, diameter / 2, GxEPD_BLACK);
const int number_of_lines = 90;
for (double Ypos = 0; Ypos <= number_of_lines / 2; Ypos++) {
double Xpos = sqrt(number_of_lines / 2 * number_of_lines / 2 - Ypos * Ypos);
// Determine the edges of the lighted part of the moon
double Rpos = 2 * Xpos;
double Xpos1, Xpos2;
if (Phase < 0.5) {
Xpos1 = -Xpos;
Xpos2 = Rpos - 2 * Phase * Rpos - Xpos;
}
else {
Xpos1 = Xpos;
Xpos2 = Xpos - 2 * Phase * Rpos + Rpos;
}
// Draw light part of moon
double pW1x = (Xpos1 + number_of_lines) / number_of_lines * diameter + x;
double pW1y = (number_of_lines - Ypos) / number_of_lines * diameter + y;
double pW2x = (Xpos2 + number_of_lines) / number_of_lines * diameter + x;
double pW2y = (number_of_lines - Ypos) / number_of_lines * diameter + y;
double pW3x = (Xpos1 + number_of_lines) / number_of_lines * diameter + x;
double pW3y = (Ypos + number_of_lines) / number_of_lines * diameter + y;
double pW4x = (Xpos2 + number_of_lines) / number_of_lines * diameter + x;
double pW4y = (Ypos + number_of_lines) / number_of_lines * diameter + y;
display.drawLine(pW1x, pW1y, pW2x, pW2y, GxEPD_WHITE);
display.drawLine(pW3x, pW3y, pW4x, pW4y, GxEPD_WHITE);
}
display.drawCircle(x + diameter - 1, y + diameter, diameter / 2, GxEPD_BLACK);
}
//#########################################################################################
void DrawWind(int x, int y, float angle, float windspeed) {
#define Cradius 18
float dx = Cradius * cos((angle - 90) * PI / 180) + x; // calculate X position
float dy = Cradius * sin((angle - 90) * PI / 180) + y; // calculate Y position
arrow(x, y, Cradius - 10, angle, 10, 20); // Show wind direction on outer circle
display.drawCircle(x, y, Cradius + 2, GxEPD_BLACK);
//display.drawCircle(x, y, Cradius + 3, GxEPD_BLACK);
for (int m = 0; m < 360; m = m + 45) {
dx = Cradius * cos(m * PI / 180); // calculate X position
dy = Cradius * sin(m * PI / 180); // calculate Y position
display.drawLine(x + dx, y + dy, x + dx * 0.8, y + dy * 0.8, GxEPD_BLACK);
}
u8g2Fonts.setFont(u8g2_font_helvB10_tf);
drawString(x - 10 + (WindDegToDirection(angle).length() < 2 ? 10 : 0), y + Cradius + 12, WindDegToDirection(angle), CENTER);
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
drawString(x + 5, y - Cradius - 15, String(windspeed, 1) + (Units == "M" ? " m/s" : " mph"), CENTER);
}
//#########################################################################################
String WindDegToDirection(float winddirection) {
if (winddirection >= 348.75 || winddirection < 11.25) return TXT_N;
if (winddirection >= 11.25 && winddirection < 33.75) return TXT_NNE;
if (winddirection >= 33.75 && winddirection < 56.25) return TXT_NE;
if (winddirection >= 56.25 && winddirection < 78.75) return TXT_ENE;
if (winddirection >= 78.75 && winddirection < 101.25) return TXT_E;
if (winddirection >= 101.25 && winddirection < 123.75) return TXT_ESE;
if (winddirection >= 123.75 && winddirection < 146.25) return TXT_SE;
if (winddirection >= 146.25 && winddirection < 168.75) return TXT_SSE;
if (winddirection >= 168.75 && winddirection < 191.25) return TXT_S;
if (winddirection >= 191.25 && winddirection < 213.75) return TXT_SSW;
if (winddirection >= 213.75 && winddirection < 236.25) return TXT_SW;
if (winddirection >= 236.25 && winddirection < 258.75) return TXT_WSW;
if (winddirection >= 258.75 && winddirection < 281.25) return TXT_W;
if (winddirection >= 281.25 && winddirection < 303.75) return TXT_WNW;
if (winddirection >= 303.75 && winddirection < 326.25) return TXT_NW;
if (winddirection >= 326.25 && winddirection < 348.75) return TXT_NNW;
return "?";
}
//#########################################################################################
void arrow(int x, int y, int asize, float aangle, int pwidth, int plength) {
// x,y is the centre poistion of the arrow and asize is the radius out from the x,y position
// aangle is angle to draw the pointer at e.g. at 45° for NW
// pwidth is the pointer width in pixels
// plength is the pointer length in pixels
float dx = (asize - 10) * cos((aangle - 90) * PI / 180) + x; // calculate X position
float dy = (asize - 10) * sin((aangle - 90) * PI / 180) + y; // calculate Y position
float x1 = 0; float y1 = plength;
float x2 = pwidth / 2; float y2 = pwidth / 2;
float x3 = -pwidth / 2; float y3 = pwidth / 2;
float angle = aangle * PI / 180 - 135;
float xx1 = x1 * cos(angle) - y1 * sin(angle) + dx;
float yy1 = y1 * cos(angle) + x1 * sin(angle) + dy;
float xx2 = x2 * cos(angle) - y2 * sin(angle) + dx;
float yy2 = y2 * cos(angle) + x2 * sin(angle) + dy;
float xx3 = x3 * cos(angle) - y3 * sin(angle) + dx;
float yy3 = y3 * cos(angle) + x3 * sin(angle) + dy;
display.fillTriangle(xx1, yy1, xx3, yy3, xx2, yy2, GxEPD_BLACK);
}
//#########################################################################################
void DrawPressureTrend(int x, int y, float pressure, String slope) {
drawString(x, y - 3, String(pressure, (Units == "M" ? 0 : 1)) + (Units == "M" ? " hPa" : " in"), LEFT);
x = x + 52 - (Units == "M" ? 0 : 15); y = y + 3;
if (slope == "+") {
display.drawLine(x, y, x + 4, y - 4, GxEPD_BLACK);
display.drawLine(x + 4, y - 4, x + 8, y, GxEPD_BLACK);
}
else if (slope == "0") {
display.drawLine(x + 3, y - 4, x + 8, y, GxEPD_BLACK);
display.drawLine(x + 3, y + 4, x + 8, y, GxEPD_BLACK);
}
else if (slope == "-") {
display.drawLine(x, y, x + 4, y + 4, GxEPD_BLACK);
display.drawLine(x + 4, y + 4, x + 8, y, GxEPD_BLACK);
}
}
//#########################################################################################
void DisplayConditionsSection(int x, int y, String IconName, bool IconSize) {
Serial.println("Icon name: " + IconName);
if (IconName == "01d" || IconName == "01n") ClearSky(x, y, IconSize, IconName);
else if (IconName == "02d" || IconName == "02n") FewClouds(x, y, IconSize, IconName);
else if (IconName == "03d" || IconName == "03n") ScatteredClouds(x, y, IconSize, IconName);
else if (IconName == "04d" || IconName == "04n") BrokenClouds(x, y, IconSize, IconName);
else if (IconName == "09d" || IconName == "09n") ChanceRain(x, y, IconSize, IconName);
else if (IconName == "10d" || IconName == "10n") Rain(x, y, IconSize, IconName);
else if (IconName == "11d" || IconName == "11n") Tstorms(x, y, IconSize, IconName);
else if (IconName == "13d" || IconName == "13n") Snow(x, y, IconSize, IconName);
else if (IconName == "50d" || IconName == "50n") Mist(x, y, IconSize, IconName);
else Nodata(x, y, IconSize, IconName);
}
//#########################################################################################
void GetHighsandLows() {
for (int d = 0; d < max_readings; d++) {
HLReadings[d].Time = "";
HLReadings[d].High = (Units == "M"?-50:-58);
HLReadings[d].Low = (Units == "M"?70:158);
}
int Day = 0;
String StartTime = "08:00" + String((Units == "M" ? "" : "a"));
String FinishTime = "10:00" + String((Units == "M" ? "" : "a"));
for (int r = 0; r < max_readings; r++) {
if (ConvertUnixTime(WxForecast[r].Dt + WxConditions[0].Timezone).substring(0, (Units == "M" ? 5 : 6)) >= StartTime && ConvertUnixTime(WxForecast[r].Dt + WxForecast[r].Timezone).substring(0, (Units == "M" ? 5 : 6)) <= FinishTime) { // found first period in day
HLReadings[Day].Time = ConvertUnixTime(WxForecast[r].Dt + WxConditions[0].Timezone).substring(0, (Units == "M" ? 5 : 6));
for (int InDay = 0; InDay < 8; InDay++) { // 00:00 to 21:00 is 8 readings
if (r + InDay < max_readings) {
if (WxForecast[r + InDay].High > HLReadings[Day].High) {
HLReadings[Day].High = WxForecast[r + InDay].High;
}
if (WxForecast[r + InDay].Low < HLReadings[Day].Low) {
HLReadings[Day].Low = WxForecast[r + InDay].Low;
}
}
}
//Serial.println("Cnt= " + String(Day) + "Day=" + HLReadings[Day].Time + " " + String(HLReadings[Day].High) + " " + String(HLReadings[Day].Low));
Day++;
}
}
} // Now the array HLReadings has 5-days of Highs and Lows
//#########################################################################################
uint8_t StartWiFi() {
Serial.println("\r\nConnecting to: " + String(ssid));
IPAddress dns(8, 8, 8, 8); // Use Google DNS
WiFi.disconnect();
WiFi.mode(WIFI_STA); // switch off AP
//WiFi.setAutoConnect(true);
WiFi.setAutoReconnect(true);
WiFi.begin(ssid, password);
if (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.printf("STA: Failed!\n");
WiFi.disconnect(false);
delay(500);
WiFi.begin(ssid, password);
}
if (WiFi.status() == WL_CONNECTED) {
wifi_signal = WiFi.RSSI(); // Get Wifi Signal strength now, because the WiFi will be turned off to save power!
Serial.println("WiFi connected at: " + WiFi.localIP().toString());
}
else Serial.println("WiFi connection *** FAILED ***");
return WiFi.status();
}
//#########################################################################################
void StopWiFi() {
WiFi.disconnect();
WiFi.mode(WIFI_OFF);
}
//#########################################################################################
boolean SetupTime() {
configTime(gmtOffset_sec, daylightOffset_sec, ntpServer, "time.nist.gov"); //(gmtOffset_sec, daylightOffset_sec, ntpServer)
setenv("TZ", Timezone, 1); //setenv()adds the "TZ" variable to the environment with a value TimeZone, only used if set to 1, 0 means no change
tzset(); // Set the TZ environment variable
delay(100);
bool TimeStatus = UpdateLocalTime();
return TimeStatus;
}
//#########################################################################################
boolean UpdateLocalTime() {
struct tm timeinfo;
char time_output[30], day_output[30], update_time[30];
while (!getLocalTime(&timeinfo, 5000)) { // Wait for 5-sec for time to synchronise
Serial.println("Failed to obtain time");
return false;
}
CurrentHour = timeinfo.tm_hour;
CurrentMin = timeinfo.tm_min;
CurrentSec = timeinfo.tm_sec;
//See http://www.cplusplus.com/reference/ctime/strftime/
//Serial.println(&timeinfo, "%a %b %d %Y %H:%M:%S"); // Displays: Saturday, June 24 2017 14:05:49
if (Units == "M") {
if ((Language == "CZ") || (Language == "DE") || (Language == "NL") || (Language == "PL")) {
sprintf(day_output, "%s, %02u. %s %04u", weekday_D[timeinfo.tm_wday], timeinfo.tm_mday, month_M[timeinfo.tm_mon], (timeinfo.tm_year) + 1900); // day_output >> So., 23. Juni 2019 <<
}
else
{
//sprintf(day_output, "%s %02u-%s-%04u", weekday_D[timeinfo.tm_wday], timeinfo.tm_mday, month_M[timeinfo.tm_mon], (timeinfo.tm_year) + 1900);
sprintf(day_output, "%s %02u %s %04u", weekday_D[timeinfo.tm_wday], timeinfo.tm_mday, month_M[timeinfo.tm_mon], (timeinfo.tm_year) + 1900);
}
strftime(update_time, sizeof(update_time), "%H:%M:%S", &timeinfo); // Creates: '@ 14:05:49' and change from 30 to 8 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
sprintf(time_output, "%s", update_time);
}
else
{
strftime(day_output, sizeof(day_output), "%a %b-%d-%Y", &timeinfo); // Creates 'Sat May-31-2019'
strftime(update_time, sizeof(update_time), "%r", &timeinfo); // Creates: '02:05:49pm'
sprintf(time_output, "%s", update_time);
}
date_str = day_output;
time_str = time_output;
return true;
}
//#########################################################################################
void DrawBattery(int x, int y) {
uint8_t percentage = 100;
//float voltage = analogRead(0) / 4096.0 * 7.46; //<=== (35)
//float voltage = 3.50;
float v_mes = analogRead(pinVb);
float voltage = 1.435*(v_mes/4095)*3.3;
Serial.println(voltage);
delay(100);
if (voltage > 1 ) { // Only display if there is a valid reading
Serial.println("Voltage = " + String(voltage));
percentage = 2836.9625 * pow(voltage, 4) - 43987.4889 * pow(voltage, 3) + 255233.8134 * pow(voltage, 2) - 656689.7123 * voltage + 632041.7303;
if (voltage >= 4.20) percentage = 100;
if (voltage <= 3.50) percentage = 0;
display.drawRect(x + 15, y - 12, 19, 10, GxEPD_BLACK);
display.fillRect(x + 34, y - 10, 2, 5, GxEPD_BLACK);
display.fillRect(x + 17, y - 10, 15 * percentage / 100.0, 6, GxEPD_BLACK);
drawString(x + 60, y - 11, String(percentage) + "%", RIGHT);
//drawString(x + 13, y + 5, String(voltage, 2) + "v", CENTER);
}
}
//#########################################################################################
// Symbols are drawn on a relative 10x10grid and 1 scale unit = 1 drawing unit
void addcloud(int x, int y, int scale, int linesize) {
//Draw cloud outer
display.fillCircle(x - scale * 3, y, scale, GxEPD_BLACK); // Left most circle
display.fillCircle(x + scale * 3, y, scale, GxEPD_BLACK); // Right most circle
display.fillCircle(x - scale, y - scale, scale * 1.4, GxEPD_BLACK); // left middle upper circle
display.fillCircle(x + scale * 1.5, y - scale * 1.3, scale * 1.75, GxEPD_BLACK); // Right middle upper circle
display.fillRect(x - scale * 3 - 1, y - scale, scale * 6, scale * 2 + 1, GxEPD_BLACK); // Upper and lower lines
//Clear cloud inner
display.fillCircle(x - scale * 3, y, scale - linesize, GxEPD_WHITE); // Clear left most circle
display.fillCircle(x + scale * 3, y, scale - linesize, GxEPD_WHITE); // Clear right most circle
display.fillCircle(x - scale, y - scale, scale * 1.4 - linesize, GxEPD_WHITE); // left middle upper circle
display.fillCircle(x + scale * 1.5, y - scale * 1.3, scale * 1.75 - linesize, GxEPD_WHITE); // Right middle upper circle
display.fillRect(x - scale * 3 + 2, y - scale + linesize - 1, scale * 5.9, scale * 2 - linesize * 2 + 2, GxEPD_WHITE); // Upper and lower lines
}
//#########################################################################################
void addraindrop(int x, int y, int scale) {
display.fillCircle(x, y, scale / 2, GxEPD_BLACK);
display.fillTriangle(x - scale / 2, y, x, y - scale * 1.2, x + scale / 2, y , GxEPD_BLACK);
x = x + scale * 1.6; y = y + scale / 3;
display.fillCircle(x, y, scale / 2, GxEPD_BLACK);
display.fillTriangle(x - scale / 2, y, x, y - scale * 1.2, x + scale / 2, y , GxEPD_BLACK);
}
//#########################################################################################
void addrain(int x, int y, int scale, bool IconSize) {
if (IconSize == SmallIcon) scale *= 1.34;
for (int d = 0; d < 4; d++) {
addraindrop(x + scale * (7.8 - d * 1.95) - scale * 5.2, y + scale * 2.1 - scale / 6, scale / 1.6);
}
}
//#########################################################################################
void addsnow(int x, int y, int scale, bool IconSize) {
int dxo, dyo, dxi, dyi;
for (int flakes = 0; flakes < 5; flakes++) {
for (int i = 0; i < 360; i = i + 45) {
dxo = 0.5 * scale * cos((i - 90) * 3.14 / 180); dxi = dxo * 0.1;
dyo = 0.5 * scale * sin((i - 90) * 3.14 / 180); dyi = dyo * 0.1;
display.drawLine(dxo + x + flakes * 1.5 * scale - scale * 3, dyo + y + scale * 2, dxi + x + 0 + flakes * 1.5 * scale - scale * 3, dyi + y + scale * 2, GxEPD_BLACK);
}
}
}
//#########################################################################################
void addtstorm(int x, int y, int scale) {
y = y + scale / 2;
for (int i = 0; i < 5; i++) {
display.drawLine(x - scale * 4 + scale * i * 1.5 + 0, y + scale * 1.5, x - scale * 3.5 + scale * i * 1.5 + 0, y + scale, GxEPD_BLACK);
if (scale != Small) {
display.drawLine(x - scale * 4 + scale * i * 1.5 + 1, y + scale * 1.5, x - scale * 3.5 + scale * i * 1.5 + 1, y + scale, GxEPD_BLACK);
display.drawLine(x - scale * 4 + scale * i * 1.5 + 2, y + scale * 1.5, x - scale * 3.5 + scale * i * 1.5 + 2, y + scale, GxEPD_BLACK);
}
display.drawLine(x - scale * 4 + scale * i * 1.5, y + scale * 1.5 + 0, x - scale * 3 + scale * i * 1.5 + 0, y + scale * 1.5 + 0, GxEPD_BLACK);
if (scale != Small) {
display.drawLine(x - scale * 4 + scale * i * 1.5, y + scale * 1.5 + 1, x - scale * 3 + scale * i * 1.5 + 0, y + scale * 1.5 + 1, GxEPD_BLACK);
display.drawLine(x - scale * 4 + scale * i * 1.5, y + scale * 1.5 + 2, x - scale * 3 + scale * i * 1.5 + 0, y + scale * 1.5 + 2, GxEPD_BLACK);
}
display.drawLine(x - scale * 3.5 + scale * i * 1.4 + 0, y + scale * 2.5, x - scale * 3 + scale * i * 1.5 + 0, y + scale * 1.5, GxEPD_BLACK);
if (scale != Small) {
display.drawLine(x - scale * 3.5 + scale * i * 1.4 + 1, y + scale * 2.5, x - scale * 3 + scale * i * 1.5 + 1, y + scale * 1.5, GxEPD_BLACK);
display.drawLine(x - scale * 3.5 + scale * i * 1.4 + 2, y + scale * 2.5, x - scale * 3 + scale * i * 1.5 + 2, y + scale * 1.5, GxEPD_BLACK);
}
}
}
//#########################################################################################
void addsun(int x, int y, int scale, bool IconSize) {
int linesize = 3;
if (IconSize == SmallIcon) linesize = 1;
display.fillRect(x - scale * 2, y, scale * 4, linesize, GxEPD_BLACK);
display.fillRect(x, y - scale * 2, linesize, scale * 4, GxEPD_BLACK);
display.drawLine(x - scale * 1.3, y - scale * 1.3, x + scale * 1.3, y + scale * 1.3, GxEPD_BLACK);
display.drawLine(x - scale * 1.3, y + scale * 1.3, x + scale * 1.3, y - scale * 1.3, GxEPD_BLACK);
if (IconSize == LargeIcon) {
display.drawLine(1 + x - scale * 1.3, y - scale * 1.3, 1 + x + scale * 1.3, y + scale * 1.3, GxEPD_BLACK);
display.drawLine(2 + x - scale * 1.3, y - scale * 1.3, 2 + x + scale * 1.3, y + scale * 1.3, GxEPD_BLACK);
display.drawLine(3 + x - scale * 1.3, y - scale * 1.3, 3 + x + scale * 1.3, y + scale * 1.3, GxEPD_BLACK);
display.drawLine(1 + x - scale * 1.3, y + scale * 1.3, 1 + x + scale * 1.3, y - scale * 1.3, GxEPD_BLACK);
display.drawLine(2 + x - scale * 1.3, y + scale * 1.3, 2 + x + scale * 1.3, y - scale * 1.3, GxEPD_BLACK);
display.drawLine(3 + x - scale * 1.3, y + scale * 1.3, 3 + x + scale * 1.3, y - scale * 1.3, GxEPD_BLACK);
}
display.fillCircle(x, y, scale * 1.3, GxEPD_WHITE);
display.fillCircle(x, y, scale, GxEPD_BLACK);
display.fillCircle(x, y, scale - linesize, GxEPD_WHITE);
}
//#########################################################################################
void addfog(int x, int y, int scale, int linesize, bool IconSize) {
if (IconSize == SmallIcon) {
linesize = 1;
y = y - 1;
} else y = y - 3;
for (int i = 0; i < 6; i++) {
display.fillRect(x - scale * 3, y + scale * 1.5, scale * 6, linesize, GxEPD_BLACK);
display.fillRect(x - scale * 3, y + scale * 2.0, scale * 6, linesize, GxEPD_BLACK);
display.fillRect(x - scale * 3, y + scale * 2.6, scale * 6, linesize, GxEPD_BLACK);
}
}
//#########################################################################################
void ClearSky(int x, int y, bool IconSize, String IconName) {
int scale = Small;
if (IconSize == LargeIcon) {
scale = Large;
y = y - 6; // Shift up large sun
}
else {
y = y - 5; // Shift down small sun icon
}
if (IconName.endsWith("n")) addmoon(x, y + 3, scale, IconSize);
scale = scale * 1.6;
addsun(x, y, scale, IconSize);
}
//#########################################################################################
void FewClouds(int x, int y, bool IconSize, String IconName) {
int scale = Small, linesize = 1;
if (IconSize == LargeIcon) {
scale = Large;
linesize = 3;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addsun(x - scale * 1.8, y - scale * 1.8, scale, IconSize);
addcloud(x, y, scale, linesize);
}//#########################################################################################
void ScatteredClouds(int x, int y, bool IconSize, String IconName) {
int scale = Small, linesize = 3, offset = 10;
if (IconSize == LargeIcon) {
scale = Large;
}
else
{
linesize = 1;
offset = 5;
}
if (IconName.endsWith("n")) addmoon(x, y + offset + (IconSize ? -8 : 0), scale, IconSize);
addcloud(x + offset, y - offset * 1.2, scale / 1.5, linesize);
addcloud(x, y + offset, scale, linesize);
addsun(x - scale * 1.8, y - scale * 1.8 + offset, scale, IconSize);
}
//#########################################################################################
void BrokenClouds(int x, int y, bool IconSize, String IconName) {
int scale = Small, linesize = 3, offset = 12;
if (IconSize == LargeIcon) {
scale = Large;
}
else
{
linesize = 1;
offset = 6;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addcloud(x - offset, y - offset, scale / 1.5, linesize);
addcloud(x + offset, y - offset * 1.2, scale / 1.5, linesize);
addcloud(x, y, scale, linesize);
}
//#########################################################################################
void Rain(int x, int y, bool IconSize, String IconName) {
int scale = Large, linesize = 3;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addcloud(x, y, scale, linesize);
addrain(x, y, scale, IconSize);
}
//#########################################################################################
void ChanceRain(int x, int y, bool IconSize, String IconName) {
int scale = Large, linesize = 3;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
}
if (IconName.endsWith("n")) addmoon(x - (IconSize ? 8 : 0), y, scale, IconSize);
addsun(x - scale * 1.8, y - scale * 1.8, scale, IconSize);
addcloud(x, y, scale, linesize);
addrain(x, y, scale, IconSize);
}
//#########################################################################################
void ExpectRain(int x, int y, bool IconSize, String IconName) {
int scale = Large, linesize = 3;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addsun(x - scale * 1.8, y - scale * 1.8, scale, IconSize);
addcloud(x, y, scale, linesize);
addrain(x, y, scale, IconSize);
}
//#########################################################################################
void Tstorms(int x, int y, bool IconSize, String IconName) {
int scale = Large, linesize = 3;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addcloud(x, y, scale, linesize);
addtstorm(x, y, scale);
}
//#########################################################################################
void Snow(int x, int y, bool IconSize, String IconName) {
int scale = Large, linesize = 3;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addcloud(x, y, scale, linesize);
addsnow(x, y, scale, IconSize);
}
//#########################################################################################
void Mist(int x, int y, bool IconSize, String IconName) {
int linesize = 3, scale = Large;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
y = y + 5;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addcloud(x, y - 5, scale, linesize);
addfog(x, y - 2, scale, linesize, IconSize);
}
//#########################################################################################
void Haze(int x, int y, bool IconSize, String IconName) {
int linesize = 3, scale = Large;
if (IconSize == SmallIcon) {
scale = Small;
linesize = 1;
}
if (IconName.endsWith("n")) addmoon(x, y, scale, IconSize);
addsun(x, y - 2, scale * 1.4, IconSize);
addfog(x, y + 3 - (IconSize ? 12 : 0), scale * 1.4, linesize, IconSize);
}
//#########################################################################################
void CloudCover(int x, int y, int CCover) {
addcloud(x - 9, y - 3, Small * 0.6, 2); // Cloud top left
addcloud(x + 3, y - 3, Small * 0.6, 2); // Cloud top right
addcloud(x, y, Small * 0.6, 2); // Main cloud
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
drawString(x + 15, y - 5, String(CCover) + "%", LEFT);
}
//#########################################################################################
void Visibility(int x, int y, String Visi) {
y = y - 3; //
float start_angle = 0.52, end_angle = 2.61;
int r = 10;
for (float i = start_angle; i < end_angle; i = i + 0.05) {
display.drawPixel(x + r * cos(i), y - r / 2 + r * sin(i), GxEPD_BLACK);
display.drawPixel(x + r * cos(i), 1 + y - r / 2 + r * sin(i), GxEPD_BLACK);
}
start_angle = 3.61; end_angle = 5.78;
for (float i = start_angle; i < end_angle; i = i + 0.05) {
display.drawPixel(x + r * cos(i), y + r / 2 + r * sin(i), GxEPD_BLACK);
display.drawPixel(x + r * cos(i), 1 + y + r / 2 + r * sin(i), GxEPD_BLACK);
}
display.fillCircle(x, y, r / 4, GxEPD_BLACK);
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
drawString(x + 12, y - 3, Visi, LEFT);
}
//#########################################################################################
void addmoon(int x, int y, int scale, bool IconSize) {
if (IconSize == LargeIcon) {
x = x - 5; y = y + 5;
display.fillCircle(x - 21, y - 23, scale, GxEPD_BLACK);
display.fillCircle(x - 14, y - 23, scale * 1.7, GxEPD_WHITE);
}
else
{
display.fillCircle(x - 16, y - 11, scale, GxEPD_BLACK);
display.fillCircle(x - 11, y - 11, scale * 1.7, GxEPD_WHITE);
}
}
//#########################################################################################
void Nodata(int x, int y, bool IconSize, String IconName) {
if (IconSize == LargeIcon) u8g2Fonts.setFont(u8g2_font_helvB24_tf); else u8g2Fonts.setFont(u8g2_font_helvB10_tf);
drawString(x - 3, y - 8, "?", CENTER);
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
}
//#########################################################################################
void SunRise(int x, int y) {
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
addsun(x, y, 3, SmallIcon);
display.drawFastVLine(x + 10, y - 6, 10, GxEPD_BLACK);
display.drawLine(x + 10 - 3, y - 6 + 3, x + 10, y - 6, GxEPD_BLACK);
display.drawLine(x + 10 + 3, y - 6 + 3, x + 10, y - 6, GxEPD_BLACK);
}
//#########################################################################################
void SunSet(int x, int y) {
u8g2Fonts.setFont(u8g2_font_helvB08_tf);
addsun(x, y, 3, SmallIcon);
display.drawFastVLine(x + 10, y - 6, 10, GxEPD_BLACK);
display.drawLine(x + 10 - 3, y + 4 - 3, x + 10, y + 4, GxEPD_BLACK);
display.drawLine(x + 10 + 3, y + 4 - 3, x + 10, y + 4, GxEPD_BLACK);
}
//#########################################################################################
void drawString(int x, int y, String text, alignmentType alignment) {
int16_t x1, y1; //the bounds of x,y and w and h of the variable 'text' in pixels.
uint16_t w, h;
display.setTextWrap(false);
display.getTextBounds(text, x, y, &x1, &y1, &w, &h);
if (alignment == RIGHT) x = x - w;
if (alignment == CENTER) x = x - w / 2;
u8g2Fonts.setCursor(x, y + h);
u8g2Fonts.print(text);
}
//#########################################################################################
void drawStringMaxWidth(int x, int y, unsigned int text_width, String text, alignmentType alignment) {
int16_t x1, y1; //the bounds of x,y and w and h of the variable 'text' in pixels.
uint16_t w, h;
display.getTextBounds(text, x, y, &x1, &y1, &w, &h);
if (alignment == RIGHT) x = x - w;
if (alignment == CENTER) x = x - w / 2;
u8g2Fonts.setCursor(x, y);
if (text.length() > text_width * 2) {
u8g2Fonts.setFont(u8g2_font_helvB10_tf);
text_width = 42;
y = y - 3;
}
u8g2Fonts.println(text.substring(0, text_width));
if (text.length() > text_width) {
u8g2Fonts.setCursor(x, y + h + 15);
String secondLine = text.substring(text_width);
secondLine.trim(); // Remove any leading spaces
u8g2Fonts.println(secondLine);
}
}
//#########################################################################################
String GetForecastDay(int unix_time) {
// Returns either '21:12 ' or ' 09:12pm' depending on Units mode
time_t tm = unix_time;
struct tm *now_tm = localtime(&tm);
char output[40], FDay[40];
if (Units == "M") {
strftime(output, sizeof(output), "%H:%M %d/%m/%y", now_tm);
strftime(FDay, sizeof(FDay), "%w", now_tm);
}
else {
strftime(output, sizeof(output), "%I:%M%p %m/%d/%y", now_tm);
strftime(FDay, sizeof(FDay), "%w", now_tm);
}
ForecastDay = weekday_D[String(FDay).toInt()];
return output;
}
//#########################################################################################
void InitialiseDisplay() {
//display.init(115200, true, 2, false);
display.init(115200); //for older Waveshare HAT's
//SPI.end();
//SPI.begin(EPD_SCK, EPD_MISO, EPD_MOSI, EPD_CS);
display.setRotation(1); // Use 1 or 3 for landscape modes
u8g2Fonts.begin(display); // connect u8g2 procedures to Adafruit GFX
u8g2Fonts.setFontMode(1); // use u8g2 transparent mode (this is default)
u8g2Fonts.setFontDirection(0); // left to right (this is default)
u8g2Fonts.setForegroundColor(GxEPD_BLACK); // apply Adafruit GFX color
u8g2Fonts.setBackgroundColor(GxEPD_WHITE); // apply Adafruit GFX color
u8g2Fonts.setFont(u8g2_font_helvB10_tf); // Explore u8g2 fonts from here: https://github.com/olikraus/u8g2/wiki/fntlistall
display.fillScreen(GxEPD_WHITE);
display.setFullWindow();
}
/*
Version 6.0 reformatted to use u8g2 fonts
1. Screen layout revised
2. Made consitent with other versions specifically 7x5 variant
3. Introduced Visibility in Metres, Cloud cover in % and RH in %
4. Correct sunrise/sunset time when in imperial mode.
Version 6.1 Provided connection support for Waveshare ESP32 driver board
Version 6.2 Changed GxEPD2 initialisation from 115200 to 0
1. display.init(115200); becomes display.init(0); to stop blank screen following update to GxEPD2
Version 6.3 changed u8g2 fonts selection
1. Omitted 'FONT(' and added _tf to font names either Regular (R) or Bold (B)
Version 6.4
1. Added an extra 20-secs sleep delay to allow for slow ESP32 RTC timers
Version 6.5
1. Modified for GxEPD2
Version 7.0
1. Added 3-dayy forecasting
*/ |
Initialisation WeActStudio E-paper 2.9 inch
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Envoyé par Jay M
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