diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/2-Cryptocurrency_tracker_example.ino b/examples/3. Projects/2-Crypto_tracker_example/2-Crypto_tracker_example.ino similarity index 81% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/2-Cryptocurrency_tracker_example.ino rename to examples/3. Projects/2-Crypto_tracker_example/2-Crypto_tracker_example.ino index 8ec2d86..feeeb6c 100644 --- a/examples/3. Projects/2-Cryptocurrency_tracker_example/2-Cryptocurrency_tracker_example.ino +++ b/examples/3. Projects/2-Crypto_tracker_example/2-Crypto_tracker_example.ino @@ -5,12 +5,14 @@ Don't have "Inkplate 6(ESP32)" option? Follow our tutorial and add it: https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/ - This example will show you how you can use Inkplate 6 to display API data, - e.g. coingecko api + This example will show you how you can use Inkplate 6 to display API data. + Here we use Coingecko API to get latest cryptocurrency prices and display + them on the Inkplate screen. If you wish to change the currecny, you can + edit it below. IMPORTANT: Make sure to change your timezone and wifi credentials below - Also have ArduinoJSON installed in your Arduino libraries + Also have ArduinoJSON installed in your Arduino libraries, download here: https://arduinojson.org/ Want to learn more about Inkplate? Visit www.inkplate.io Looking to get support? Write on our forums: http://forum.e-radionica.com/en/ @@ -19,7 +21,7 @@ // ---------- CHANGE HERE -------------: -// Adjust your time zone +// Adjust your time zone, 2 means UTC+2 int timeZone = 2; // Put in your ssid and password @@ -31,6 +33,9 @@ char *pass = ""; char *currency = "bitcoin"; char *currencyAbbr = "BTC"; +// You can find your currency id here: +// https://api.coingecko.com/api/v3/coins + // ---------------------------------- // Include Inkplate library to the sketch @@ -47,10 +52,10 @@ char *currencyAbbr = "BTC"; // create object with all networking functions Network network; -// create +// create display object Inkplate display(INKPLATE_3BIT); -// Delay between API calls +// Delay between API calls in miliseconds #define DELAY_MS 5000 // Variable for counting partial refreshes @@ -60,7 +65,7 @@ long refreshes = 0; const int fullRefresh = 20; // Used for storing raw price values -float data[64]; +double data[64]; // Used to simplify UI design struct textElement @@ -106,9 +111,9 @@ textElement elements[] = { {190, 185, &Roboto_Light_40, fromToDate, 0}, {570, 140, &Roboto_Light_40, "Current price:", 0}, {790, 190, &Roboto_Light_40, current, 1}, - {630, 275, &Roboto_Light_40, "Minimum", 0}, + {630, 275, &Roboto_Light_40, "Minimum:", 0}, {790, 320, &Roboto_Light_40, minimum, 1}, - {625, 420, &Roboto_Light_40, "Maximum", 0}, + {625, 420, &Roboto_Light_40, "Maximum:", 0}, {790, 466, &Roboto_Light_40, maximum, 1}, {18, 570, &Roboto_Light_36, dates, 0}, @@ -136,8 +141,8 @@ void drawGraph() int textMargin = 68; // Set min to a very high value, and max to very low, so that any real world data changes it - float minData = 1e9F; - float maxData = -1e9F; + double minData = 1e9F; + double maxData = -1e9F; // Find min and max in data for (int i = 0; i < 31; ++i) @@ -146,7 +151,9 @@ void drawGraph() maxData = max(maxData, data[i]); } - // Copy current, min and max data to har arrays to be displayed + double span = max(0.3D, (double)abs(maxData - minData)); + + // Copy current, min and max data to char arrays to be displayed dtostrf(data[30], 8, 2, current); strcat(current, "$"); dtostrf(minData, 8, 2, minimum); @@ -159,7 +166,7 @@ void drawGraph() for (int i = 0; i < 4; ++i) { - dtostrf(minData + (float)i / 4 * (maxData - minData), 5, 0, temp); + dtostrf(minData + (double)i / 4 * span, 5, (maxData < 10.0D ? 3 : 0), temp); strncpy(prices + 16 * (3 - i), temp, 16); } @@ -167,11 +174,24 @@ void drawGraph() int day; sscanf(date + 3, "%d", &day); + // Find current month + int month = 0; + for (int i = 0; i < 12; ++i) + { + if (strncmp(months[i], date, 3) == 0) + month = ((i + 2) % 12 ? i + 2 : 12); + } + // Find days to display underneath the graph for (int i = 0; i < 5; ++i) { itoa(((day - i * 7) % 31 + 31) % 31, temp, 10); + itoa(month - ((day - i * 7) <= 0), temp + 32, 10); + strncpy(dates + 8 * (4 - i), temp, 8); + strcat(dates + 8 * (4 - i), "."); + strcat(dates + 8 * (4 - i), temp + 32); + strcat(dates + 8 * (4 - i), "."); } // Used for drawing lines @@ -183,20 +203,20 @@ void drawGraph() { // Calculate heights and current x value for a data point int tx = x1 + i * (x2 - x1 - textMargin) / 31; - float v = data[i]; - int h = (int)((float)(v - minData) * (float)abs(y1 - y2) / (float)abs(maxData - minData)); + double v = data[i]; + int h = (int)((double)(v - minData) * (double)abs(y1 - y2) / span); int ty = y1 - h; // If i is not 0, hence prev x and y exsist so draw gradients under them if (i) { // Rise over run for one pixel - float dy = (float)(ty - prev_y) / (float)((x2 - x1 - textMargin) / 31); + double dy = (double)(ty - prev_y) / (double)((x2 - x1 - textMargin) / 31); // Draw a gradient line from every pixel to bottom line in graph line for (int j = 0; j < (x2 - x1 - textMargin) / 31 + 1; ++j) display.drawGradientLine(prev_x + j, - (int)round((float)prev_y + dy * (float)j), + (int)round((double)prev_y + dy * (double)j), prev_x + j, y1, 3, 7); } @@ -211,8 +231,8 @@ void drawGraph() { // Calculate heights and current x value for a data point int tx = x1 + i * (x2 - x1 - textMargin) / 31; - float v = data[i]; - int h = (int)((float)(v - minData) * (float)abs(y1 - y2) / (float)abs(maxData - minData)); + double v = data[i]; + int h = (int)((double)(v - minData) * (double)abs(y1 - y2) / span); int ty = y1 - h; // If i is not 0, hence prev x and y exsist so draw lines @@ -255,7 +275,7 @@ void drawAll() for (int i = 0; i < 12; ++i) { if (strncmp(months[i], date, 3) == 0) - sprintf(fromToDate, "%d.%d to %d.%d", ((i + 1) % 12 ? i + 1 : 12), day, ((i + 2) % 12 ? i + 2 : 12), day); + sprintf(fromToDate, "%d.%d. to %d.%d.", day, ((i + 1) % 12 ? i + 1 : 12), day, ((i + 2) % 12 ? i + 2 : 12)); } // Draw graph @@ -329,14 +349,17 @@ void setup() // Initial display settings display.begin(); - display.clearDisplay(); display.clean(); + display.clearDisplay(); display.setTextWrap(false); + display.setTextColor(0, 7); // Welcome screen - display.setCursor(50, 290); - display.setTextSize(3); - display.print(F("Welcome to Inkplate 6 btc/eth tracker example!")); + display.setCursor(70, 230); + display.setTextSize(2); + display.println(F("Welcome to Inkplate 6 btc/eth tracker example!")); + display.setCursor(70, 250); + display.println(F("Connecting to WiFi...")); display.display(); delay(5000); @@ -364,4 +387,4 @@ void loop() // Increment refresh count ++refreshes; -} \ No newline at end of file +} diff --git a/examples/3. 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Projects/2-Crypto_tracker_example/Fonts/FreeSerifBoldItalic18pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifBoldItalic18pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifBoldItalic18pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifBoldItalic24pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifBoldItalic24pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifBoldItalic24pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifBoldItalic24pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifBoldItalic9pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifBoldItalic9pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifBoldItalic9pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifBoldItalic9pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifItalic12pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifItalic12pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifItalic12pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifItalic12pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifItalic18pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifItalic18pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifItalic18pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifItalic18pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifItalic9pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifItalic9pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/FreeSerifItalic9pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/FreeSerifItalic9pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Not_Just_Groovy20pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Not_Just_Groovy20pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Not_Just_Groovy20pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Not_Just_Groovy20pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Org_01.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Org_01.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Org_01.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Org_01.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Picopixel.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Picopixel.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Picopixel.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Picopixel.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Roboto_Light_160.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Roboto_Light_160.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Roboto_Light_160.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Roboto_Light_160.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Roboto_Light_36.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Roboto_Light_36.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Roboto_Light_36.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Roboto_Light_36.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Roboto_Light_40.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Roboto_Light_40.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Roboto_Light_40.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Roboto_Light_40.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Tiny3x3a2pt7b.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/Tiny3x3a2pt7b.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/Tiny3x3a2pt7b.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/Tiny3x3a2pt7b.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/TomThumb.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/TomThumb.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/TomThumb.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/TomThumb.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/c.h b/examples/3. Projects/2-Crypto_tracker_example/Fonts/c.h similarity index 100% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Fonts/c.h rename to examples/3. Projects/2-Crypto_tracker_example/Fonts/c.h diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Network.cpp b/examples/3. Projects/2-Crypto_tracker_example/Network.cpp similarity index 88% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Network.cpp rename to examples/3. Projects/2-Crypto_tracker_example/Network.cpp index 6447a93..bd958c2 100644 --- a/examples/3. Projects/2-Cryptocurrency_tracker_example/Network.cpp +++ b/examples/3. Projects/2-Crypto_tracker_example/Network.cpp @@ -5,6 +5,8 @@ #include #include +#include "Inkplate.h" + // Must be installed for this example to work #include @@ -13,6 +15,8 @@ extern char *ssid; extern char *pass; extern char *currency; +extern Inkplate display; + // WiFiMulti object declaration WiFiMulti WiFiMulti; @@ -61,7 +65,7 @@ void Network::getTime(char *timeStr) timeStr[8] = hr % 10 + '0'; } -bool Network::getData(float *data) +bool Network::getData(double *data) { bool f = 0; @@ -111,11 +115,23 @@ bool Network::getData(float *data) // Save our data to data pointer from main file for (int i = 0; i < 31; ++i) { - data[i] = doc["prices"][92 - 31 + i][1].as(); + data[i] = doc["prices"][92 - 31 + i][1].as(); //Serial.println(data[i]); } + f = 0; } } + else if (httpCode == 404) + { + // Coin id not found + display.clearDisplay(); + display.setCursor(50, 230); + display.setTextSize(2); + display.println(F("Your entered coin does not exsist!")); + display.display(); + while (1) + ; + } else { f = 1; diff --git a/examples/3. Projects/2-Cryptocurrency_tracker_example/Network.h b/examples/3. Projects/2-Crypto_tracker_example/Network.h similarity index 93% rename from examples/3. Projects/2-Cryptocurrency_tracker_example/Network.h rename to examples/3. Projects/2-Crypto_tracker_example/Network.h index 01e01fc..9f3a6c4 100644 --- a/examples/3. Projects/2-Cryptocurrency_tracker_example/Network.h +++ b/examples/3. Projects/2-Crypto_tracker_example/Network.h @@ -22,7 +22,7 @@ public: // Functions we can access in main file void begin(); void getTime(char *timeStr); - bool getData(float *data); + bool getData(double *data); private: // Functions called from within our class