Implemented ConnectWiFi in Inkplate projects

Credit @koderchina

Author: rsoric

examples/Inkplate10/Projects/Inkplate10_Crypto_Currency_Tracker/Inkplate10_Crypto_Currency_Tracker.ino

@@ -36,6 +36,7 @@ char pass[] = "";
 
 // Delay between refreshed calls in miliseconds
 #define DELAY_MS 3 * 60 * 1000
+#define DELAY_WIFI_RETRY_SECONDS 10
 
 // OPTIONAL:
 // change to a different currency
@@ -113,6 +114,7 @@ textElement elements[] = {
 };
 
 // Our functions declared below setup and loop
+void getTime();
 void drawGraph();
 void drawAll();
 
@@ -126,9 +128,32 @@ void setup()
     display.setTextWrap(false);
     display.setTextColor(0, 7);
 
-    // Our begin function
-    network.begin();
+    // Try connecting to a WiFi network.
+    // Parameters are network SSID, password, timeout in seconds and whether to print to serial.
+    // If the Inkplate isn't able to connect to a network stop further code execution and print an error message.
+    if (!display.connectWiFi(ssid, pass, WIFI_TIMEOUT, true))
+    {
+        // Can't connect to netowrk
+        // Clear display for the error message
+        display.clearDisplay();
+        // Set the font size;
+        display.setTextSize(3);
+        // Set the cursor positions and print the text.
+        display.setCursor((display.width() / 2) - 200, display.height() / 2);
+        display.print(F("Unable to connect to "));
+        display.println(F(ssid));
+        display.setCursor((display.width() / 2) - 200, (display.height() / 2) + 30);
+        display.println(F("Please check ssid and pass!"));
+        // Display the error message on the Inkplate and go to deep sleep
+        display.display();
+        esp_sleep_enable_timer_wakeup(1000L * DELAY_WIFI_RETRY_SECONDS);
+        (void)esp_deep_sleep_start();
+    }
 
+    // After connecting to WiFi we need to get internet time from NTP server
+    setTime();
+
+    // After setting the correct time, we can start pulling data about BTC prices.
     Serial.print("Retrying retriving data ");
     while (!network.getData(data))
     {
@@ -153,6 +178,26 @@ void loop()
     // Never here
 }
 
+// Function for getting time from NTP server
+void setTime()
+{
+    // Structure used to hold time information
+    struct tm timeInfo;
+    time_t nowSec;
+    // Fetch current time in epoch format and store it
+    display.getNTPEpoch(&nowSec);
+    // This loop ensures that the NTP time fetched is valid and beyond a certain threshold
+    while (nowSec < 8 * 3600 * 2)
+    {
+        delay(500);
+        yield();
+        display.getNTPEpoch(&nowSec);
+    }
+    gmtime_r(&nowSec, &timeInfo);
+    Serial.print(F("Current time: "));
+    Serial.print(asctime(&timeInfo));
+}
+
 // Function to draw our graph
 void drawGraph()
 {

examples/Inkplate10/Projects/Inkplate10_Crypto_Currency_Tracker/Network.cpp

@@ -58,9 +58,6 @@ void Network::begin()
         }
     }
     Serial.println(F(" connected"));
-
-    // Find internet time
-    setTime();
 }
 
 // Gets time from ntp server
@@ -189,29 +186,3 @@ bool Network::getData(double *data)
 
     return !f;
 }
-
-// Function for initial time setting ovet the ntp server
-void Network::setTime()
-{
-    // Used for setting correct time
-    configTime(0, 0, "pool.ntp.org", "time.nist.gov");
-
-    Serial.print(F("Waiting for NTP time sync: "));
-    time_t nowSecs = time(nullptr);
-    while (nowSecs < 8 * 3600 * 2)
-    {
-        delay(500);
-        Serial.print(F("."));
-        yield();
-        nowSecs = time(nullptr);
-    }
-
-    Serial.println();
-
-    // Used to store time info
-    struct tm timeinfo;
-    gmtime_r(&nowSecs, &timeinfo);
-
-    Serial.print(F("Current time: "));
-    Serial.print(asctime(&timeinfo));
-}

examples/Inkplate10/Projects/Inkplate10_Daily_Weather_Station/Inkplate10_Daily_Weather_Station.ino

@@ -57,6 +57,7 @@ char apiKey[] = "";
 
 // Delay between API calls, about 1000 per month, which is the free tier limit
 #define DELAY_MS 267800L
+#define DELAY_WIFI_RETRY_SECONDS 10
 
 // Inkplate object
 Inkplate display(INKPLATE_1BIT);
@@ -92,7 +93,7 @@ RTC_DATA_ATTR char temps[4][8] = {
     "-",
 };
 
-// Variables for storing hour strings
+// Variables for storing hour stringsF
 RTC_DATA_ATTR uint8_t hours = 0;
 
 // Variables for storing current time and weather info
@@ -115,15 +116,37 @@ void drawCurrent();
 void drawTemps();
 void drawCity();
 void drawTime();
+void setTime();
 
 void setup()
 {
     // Begin serial and display
     Serial.begin(115200);
     display.begin();
 
-    // Calling our begin from network.h file
-    network.begin(ssid, pass);
+    // Try connecting to a WiFi network.
+    // Parameters are network SSID, password, timeout in seconds and whether to print to serial.
+    // If the Inkplate isn't able to connect to a network stop further code execution and print an error message.
+    if (!display.connectWiFi(ssid, pass, WIFI_TIMEOUT, true))
+    {
+        //Can't connect to netowrk
+        // Clear display for the error message
+        display.clearDisplay();
+        // Set the font size;
+        display.setTextSize(3);
+        // Set the cursor positions and print the text.
+        display.setCursor((display.width() / 2) - 200, display.height() / 2);
+        display.print(F("Unable to connect to "));
+        display.println(F(ssid));
+        display.setCursor((display.width() / 2) - 200, (display.height() / 2) + 30);
+        display.println(F("Please check ssid and pass!"));
+        // Display the error message on the Inkplate and go to deep sleep
+        display.display();
+        esp_sleep_enable_timer_wakeup(100L * DELAY_WIFI_RETRY_SECONDS);
+        (void)esp_deep_sleep_start();
+    }
+
+    setTime();
 
     // Get all relevant data, see Network.cpp for info
     if (refreshes % fullRefresh == 0)
@@ -163,6 +186,27 @@ void loop()
     // nothing here
 }
 
+// Function for getting time from NTP server
+void setTime()
+{
+    // Structure used to hold time information
+    struct tm timeInfo;
+    display.getNTPDateTime(&timeInfo);
+    time_t nowSec;
+    // Fetch current time in epoch format and store it
+    display.getNTPEpoch(&nowSec);
+    // This loop ensures that the NTP time fetched is valid and beyond a certain threshold
+    while (nowSec < 8 * 3600 * 2)
+    {
+        delay(500);
+        yield();
+        display.getNTPEpoch(&nowSec);
+    }
+    gmtime_r(&nowSec, &timeInfo);
+    Serial.print(F("Current time: "));
+    Serial.print(asctime(&timeInfo));
+}
+
 // Function for drawing weather info
 void drawWeather()
 {

examples/Inkplate10/Projects/Inkplate10_Daily_Weather_Station/Network.cpp

@@ -43,9 +43,6 @@ void Network::begin(char *ssid, char *pass)
         }
     }
     Serial.println(F(" connected"));
-
-    // Find internet time
-    setTime();
 }
 
 // Gets time from ntp server
@@ -227,32 +224,6 @@ bool Network::getData(char *lat, char *lon, char *apiKey, char *city, char *temp
     return 1;
 }
 
-void Network::setTime()
-{
-    // Used for setting correct time
-    configTime(0, 0, "pool.ntp.org", "time.nist.gov");
-
-    Serial.print(F("Waiting for NTP time sync: "));
-    time_t nowSecs = time(nullptr);
-    while (nowSecs < 8 * 3600 * 2)
-    {
-        // Print a dot every half a second while time is not set
-        delay(500);
-        Serial.print(F("."));
-        yield();
-        nowSecs = time(nullptr);
-    }
-
-    Serial.println();
-
-    // Used to store time info
-    struct tm timeinfo;
-    gmtime_r(&nowSecs, &timeinfo);
-
-    Serial.print(F("Current time: "));
-    Serial.print(asctime(&timeinfo));
-}
-
 void Network::getDays(char *day, char *day1, char *day2, char *day3)
 {
     // Seconds since 1.1.1970.

examples/Inkplate10/Projects/Inkplate10_Google_Calendar/Inkplate10_Google_Calendar.ino

@@ -55,6 +55,7 @@ int timeZone = 2;
 
 // Delay between API calls
 #define DELAY_MS 1 * 60000
+#define DELAY_WIFI_RETRY_SECONDS 10
 
 // Variables to keep count of when to get new data, and when to just update time
 RTC_DATA_ATTR unsigned int refreshes = 0;
@@ -125,7 +126,7 @@ void setup()
         display.println(F("Please check SSID and PASS!"));
         // Display the error message on the Inkplate and go to deep sleep
         display.display();
-        esp_sleep_enable_timer_wakeup(1000L * DELAY_MS);
+        esp_sleep_enable_timer_wakeup(1000L * DELAY_WIFI_RETRY_SECONDS);
         (void)esp_deep_sleep_start();
     }
 
@@ -499,9 +500,7 @@ void drawData()
             getToFrom(entries[entriesNum].time, timeStart, timeEnd, &entries[entriesNum].day,
                       &entries[entriesNum].timeStamp);
         }
-        // Increment the counter
         ++entriesNum;
-        // If we're over the limit, exit the loading loop
         if(entriesNum == 128)
         {
             break;
@@ -515,7 +514,6 @@ void drawData()
     bool clogged[3] = {0};
     int cloggedCount[3] = {0};
 
-    // If required, uncomment this line of debug if required, could be useful:
     //Serial.println("Displaying events one by one. There is " + String(entriesNum) + " events to display.");
     // Displaying events one by one
     for (int i = 0; i < entriesNum; ++i)
@@ -534,6 +532,7 @@ void drawData()
         // If it overflowed, set column to clogged and add one event as not shown
         if (!s)
         {
+            //Serial.println("Event " + String(i) + " has overflowed.");      
             ++cloggedCount[entries[i].day];
             clogged[entries[i].day] = 1;
         }

examples/Inkplate10/Projects/Inkplate10_Google_Calendar/Network.cpp

@@ -44,7 +44,7 @@ void Network::begin(char *ssid, char *pass)
     Serial.println(F(" connected"));
 
     // Find and print internet time, the timezone will be added later
-    setTime();
+    //setTime();
 }
 
 // Gets time from ntp server