fixed const typo

InkyDash/InkyDash.ino

@@ -16,19 +16,15 @@
 // BUSY -> GPIO4, RST -> GPIO2, DC -> GPIO0, CS -> GPIO15, CLK -> GPIO14, DIN -> GPIO13, GND -> GND, 3.3V -> 3.3V
 
 /*
-  Power Settings
-
-  If your device is designed to be plugged in
-  set LOW_POWER_MODE to false
-
-  If your device is powered with battery and
-  GPIO16 / D0 is connected to RST with a resistor
-  (resistor value depends on development board)
-  set LOW_POWER_MODE to true
-
-  If yout are not sure, set it to false
+    Deep Sleep Mode
+    
+    Some ESP8266 can do deep sleep but most don't
+    deal to the use of CH340. Set it to true
+    if you are using the bare ESP8266 module and you
+    sure your module support deep sleep.
+    Otherwise, leave it as false
 */
-#define LOW_POWER_MODE true
+#define USE_DEEP_SLEEP false
 
 /* 
   Display refresh interval
@@ -36,8 +32,8 @@
   Too frequent interval in low power mode might results getting ban by weather API / NTP servers 
   If you are not using low power mode, edit the high pwr mode interval instead
 */
-#define REFRESH_INTERVAL 900e6 //900 seconds, aka 15 minutes
-#define REFRESH_INTERVAL_HIGH_PWR_MODE 900000 //900 ms, aka 15 minutes
+#define REFRESH_INTERVAL 900e6 //900 seconds, aka 15 minutes, only work on some ESP8266
+#define REFRESH_INTERVAL_HIGH_PWR_MODE 900000 //900 s, aka 15 minutes, work on all ESP8266
 
 #define SHOW_PREVIOUS_NEXT_MONTH_DAYS true //Show previous & next months days as well
 
@@ -65,14 +61,10 @@
 #include <ESP8266WiFi.h>
 #include <WiFiManager.h>
 #include <ESP8266TrueRandom.h>
+#include <WiFiUdp.h>
 #include <NTPClient.h>
 #include <ESP8266HTTPClient.h>
-#include <WiFiUdp.h>
 #include <ArduinoJson.h>
-#include <TaskScheduler.h>
-
-
-
 
 /* WiFi and Connections */
 WiFiManager wifiManager;
@@ -123,11 +115,6 @@ float maxTemp = 0.0;
 float minTemp = 0.0;
 int batRemain = 0; //In percentage
 
-/* Schedulers */
-void datetimeUpdateCallback();
-Task t_dt(REFRESH_INTERVAL_HIGH_PWR_MODE, TASK_FOREVER, &datetimeUpdateCallback); //Frame update
-Scheduler runner;
-
 void setup() {
   //Start debug serial
   Serial.begin(115200);
@@ -136,14 +123,16 @@ void setup() {
   display.init(115200);
 
   //Set D0 to wakeup pin
-  pinMode(D0,WAKEUP_PULLUP);
+  //pinMode(D0,WAKEUP_PULLUP);
   
   //Draw starting frame
   display.setRotation(3);
-  if (!LOW_POWER_MODE) {
+  /*
+  if (!USE_DEEP_SLEEP) {
     display.drawPaged(drawStartingFrame);
     delay(100);
   }
+  */
 
   // Connect to Wi-Fi
   /*
@@ -158,7 +147,6 @@ void setup() {
     Serial.print("IP address:\t");
     Serial.println(WiFi.localIP());
   */
-
   wifiManager.setAPCallback(configModeCallback);
   wifiManager.autoConnect("InkyDash");
 
@@ -173,6 +161,7 @@ void setup() {
   delay(1000);
 
   //Randomly get one of the NTP server from the list and request time
+  Serial.println("Resolving NTP server");
   const char* randomNtpServer = getRandomNtpServer(ntpServers);
   Serial.println("Using NTP Server: " + String(randomNtpServer));
   NTPClient timeClient(UDPconn, randomNtpServer);
@@ -180,7 +169,7 @@ void setup() {
   ntpClient.setTimeOffset(28800);
 
   //Draw home page
-  if (LOW_POWER_MODE) {
+  if (USE_DEEP_SLEEP) {
     //Get weather information from API
     updateCurrentWeatherInfo();
     //Render the calender page
@@ -189,14 +178,15 @@ void setup() {
     ESP.deepSleep(REFRESH_INTERVAL);
     delay(100);
     //After deep sleep mode, device will reset and not entering the loop() session
-  } else {
-    runner.init();
-    Serial.println("Initialized scheduler");
-    runner.addTask(t_dt); //Date-time update task
-    t_dt.enable();
   }
 }
 
 void loop() {
-  runner.execute();
+  datetimeUpdateCallback();
+  Serial.println("Entering sleep mode");
+  int cc = REFRESH_INTERVAL_HIGH_PWR_MODE/1000;
+  for (int i = 0; i < cc; i++){
+    //Prevent delay overflow
+    delay(1000);
+  }
 }

InkyDash/battery.ino

@@ -21,10 +21,8 @@ void updateBatteryReading() {
 
   //Convert voltage to percentage
   int percentage = mapfloat(voltage, 3.2, 4.2, 0, 100);
+  percentage = constrain(percentage, 0, 100);
   batRemain = percentage;
-  Serial.println(rawValue);
-  Serial.println(voltage);
-  Serial.println(batRemain);
 }
 
 //Draw the battery icon at the bottom right hand corner