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Update epdWeatherClockV1.ino
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- redefined battery setting variable for better understanding
- debug mode disabled due to instability (will be fixed later)
- battery critical mode added which turns off wifi, lowers cpu speed, and other UI changes when battery percent is less than 1
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@desiFish
desiFish committed Jul 14, 2024
1 parent 3308934 commit 5dc709a
Showing 1 changed file with 111 additions and 76 deletions.
187 changes: 111 additions & 76 deletions epdWeatherClockV1.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -203,9 +203,15 @@ U8G2_FOR_ADAFRUIT_GFX u8g2Fonts;
#define uS_TO_S_FACTOR 1000000 /* Conversion factor for micro seconds to seconds */
int TIME_TO_SLEEP = 900;

//battery related settings
#define battChangeThreshold 0.3
#define battFullVol 4.19
#define battHigh 4.2
#define battLow 2.75

int nightFlag = 0; //preserves data in rtc memory from deep sleep loss
float battLevel;
bool DEBUG_MODE = false;
bool DEBUG_MODE = false, BATTERY_CRITICAL = false;

String jsonBuffer;

Expand Down Expand Up @@ -236,8 +242,8 @@ void setup() {
Serial.println("Setup");
pinMode(BATPIN, INPUT);
pinMode(DEBUG_PIN, INPUT);
if (digitalRead(DEBUG_PIN) == 1)
DEBUG_MODE = true;
/*if (digitalRead(DEBUG_PIN) == 1)
DEBUG_MODE = true;*/
Wire.begin();
Wire.setClock(400000); // Set clock speed to be the fastest for better communication (fast mode)

Expand All @@ -247,73 +253,77 @@ void setup() {

pref.begin("database", false);
//preferences.end();
bool wifiConfigExist = pref.isKey("ssid");
if (!wifiConfigExist) { //create key:value pairs
pref.putString("ssid", "");
pref.putString("password", "");
}
BATTERY_CRITICAL = pref.isKey("battCrit");
if (!BATTERY_CRITICAL)
pref.putBool("battCrit", "");
BATTERY_CRITICAL = pref.getBool("battCrit", false);
bool tempBATTERY_CRITICAL = BATTERY_CRITICAL;

bool checkFlag = pref.isKey("nightFlag");
if (!checkFlag) { //create key:value pair
pref.putBool("nightFlag", "");
}
nightFlag = pref.getBool("nightFlag", false);

//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("WCLOCK-WIFI-MANAGER", "79756622761");

IPAddress IP = WiFi.softAPIP();
Serial.print("AP IP address: ");
Serial.println(IP);

debugPrinter("Connect to 'WCLOCK-WIFI-MANAGER' \nfrom your phone or computer (Wifi).\nUse password 79756622761.\nThen go to " + IP.toString() + "\nfrom your browser.");

// Web Server Root URL
server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) {
request->send(200, "text/html", index_html);
});

server.on("/", HTTP_POST, [](AsyncWebServerRequest* request) {
int params = request->params();
for (int i = 0; i < params; i++) {
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);
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);
pref.putString("password", password);
if (!BATTERY_CRITICAL) {
bool wifiConfigExist = pref.isKey("ssid");
if (!wifiConfigExist) { //create key:value pairs
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("WCLOCK-WIFI-MANAGER", "79756622761");

IPAddress IP = WiFi.softAPIP();
Serial.print("AP IP address: ");
Serial.println(IP);

debugPrinter("Connect to 'WCLOCK-WIFI-MANAGER' \nfrom your phone or computer (Wifi).\nUse password 79756622761.\nThen go to " + IP.toString() + "\nfrom your browser.");

// Web Server Root URL
server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) {
request->send(200, "text/html", index_html);
});

server.on("/", 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);
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);
pref.putString("password", password);
}
//Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
}
//Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
}
}
request->send(200, "text/html", "<h2>Done. Weather Station will now restart</h2>");
delay(3000);
ESP.restart();
});
server.begin();
while (true)
;
request->send(200, "text/html", "<h2>Done. Weather Station will now restart</h2>");
delay(3000);
ESP.restart();
});
server.begin();
while (true)
;
}
}

if (lightMeter.begin(BH1750::ONE_TIME_HIGH_RES_MODE)) {
Serial.println(F("BH1750 Advanced begin"));
} else {
Expand Down Expand Up @@ -373,11 +383,18 @@ void setup() {
bme.setIIRFilterSize(BME680_FILTER_SIZE_7);
bme.setGasHeater(0, 0); // 0*C for 0 ms

WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.println("Connection Failed");
break;
if (!BATTERY_CRITICAL) {
WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.waitForConnectResult() != WL_CONNECTED) {
Serial.println("Connection Failed");
break;
}
} else {
//wifioff cpu speed reduced
WiFi.disconnect(true); // Disconnect from the network
WiFi.mode(WIFI_OFF); // Switch WiFi off
setCpuFrequencyMhz(40);
}

hTemp = pref.getFloat("hTemp", -1.0);
Expand Down Expand Up @@ -444,6 +461,8 @@ void setup() {
pref.putFloat("lTemp", lTemp);
if (tempBattLevel != battLevel)
pref.putFloat("battLevel", battLevel);
if (tempBATTERY_CRITICAL != BATTERY_CRITICAL)
pref.putBool("battCrit", BATTERY_CRITICAL);
}
if (tempNightFlag != nightFlag)
pref.putBool("nightFlag", nightFlag);
Expand Down Expand Up @@ -518,20 +537,28 @@ void tempPrint(byte offset) {
if (newBattLevel < battLevel) //to maintain steady decrease in battery level
battLevel = newBattLevel;

if (((newBattLevel - battLevel) >= 0.4) || newBattLevel > 4.19) //to update the battery level in case of charging
if (((newBattLevel - battLevel) >= battChangeThreshold) || newBattLevel > battFullVol) //to update the battery level in case of charging
battLevel = newBattLevel;

u8g2Fonts.setFont(u8g2_font_luRS08_tf);
u8g2Fonts.setCursor(28, 11);
u8g2Fonts.print(battLevel, 2);
u8g2Fonts.print("V");

int percent = ((battLevel - 3.0) / 1.2) * 100; //range is 4.2-100% and 3.0-0%
if (percent < 1)
percent = 1;
int percent = ((battLevel - battLow) / (battHigh - battLow)) * 100; //range is battHigh - 100% and battLow - 0%
BATTERY_CRITICAL = false;
if (percent < 1) {
BATTERY_CRITICAL = true;
percent = 0; //for battry icon
} else if (percent > 100)
percent = 100;

u8g2Fonts.setCursor(63, 11);
u8g2Fonts.print(percent, 1);
u8g2Fonts.print("%");
if (!BATTERY_CRITICAL) {
u8g2Fonts.print(percent, 1);
u8g2Fonts.print("%");
} else
u8g2Fonts.print("BATTERY CRITICAL, WIFI TURNED OFF");
iconBattery(percent);

DateTime now = rtc.now();
Expand Down Expand Up @@ -563,8 +590,19 @@ void tempPrint(byte offset) {
u8g2Fonts.setCursor(330, 110 + offset);
u8g2Fonts.print(String("C"));

display.drawLine(0, 121 + offset, 400, 121 + offset, GxEPD_RED);
display.drawLine(0, 122 + offset, 400, 122 + offset, GxEPD_RED);
if (!BATTERY_CRITICAL) {
display.drawLine(0, 121 + offset, 400, 121 + offset, GxEPD_RED);
display.drawLine(0, 122 + offset, 400, 122 + offset, GxEPD_RED);

display.drawLine(0, 154 + offset, 400, 154 + offset, GxEPD_RED);
display.drawLine(0, 155 + offset, 400, 155 + offset, GxEPD_RED);
} else {
display.drawLine(0, 121 + offset, 400, 121 + offset, GxEPD_BLACK);
display.drawLine(0, 122 + offset, 400, 122 + offset, GxEPD_BLACK);

display.drawLine(0, 154 + offset, 400, 154 + offset, GxEPD_BLACK);
display.drawLine(0, 155 + offset, 400, 155 + offset, GxEPD_BLACK);
}

unsigned long endTime = bme.beginReading();
if (endTime == 0) {
Expand Down Expand Up @@ -610,9 +648,6 @@ void tempPrint(byte offset) {
u8g2Fonts.setFont(u8g2_font_logisoso16_tf);
u8g2Fonts.setCursor(252, 148 + offset); // start writing at this position
u8g2Fonts.print("C");

display.drawLine(0, 154 + offset, 400, 154 + offset, GxEPD_RED);
display.drawLine(0, 155 + offset, 400, 155 + offset, GxEPD_RED);
}

//works only if wifi is connected. Prints data from openweather api.
Expand Down

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