running version of TelegramBot that can show 2 lines of Text

.gitignore

@@ -0,0 +1,7 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+/.vscode/extensions.json
+secrets.h

include/FlipDotDrv.h

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+#pragma once
+
+#include <Arduino.h>
+#include <Adafruit_GFX.h>
+
+class FlipDotDrv
+{
+private:
+    static constexpr uint8_t templateFrameStart {0x02};
+    static constexpr uint8_t templateFrameAddressByte1 {'1'};
+    static constexpr uint8_t templateFrameAddressByte2 {'0'};
+    uint8_t FrameResolution[2] {};
+    uint8_t *FrameData {nullptr};
+    static constexpr uint8_t templateFrameEnd {0x03};
+    uint8_t FrameCrc[2] {};
+
+    uint32_t width;
+    uint32_t height;
+    uint8_t address;
+    uint8_t *buffer {nullptr};
+    uint16_t FrameDataLength;
+    uint16_t bufferLength;
+
+    GFXcanvas1 myCanvas;
+
+public:
+    FlipDotDrv(uint8_t width, uint8_t height, uint8_t address);
+    ~FlipDotDrv();
+
+    void sendRaw(const uint8_t* bmp, uint16_t length);
+
+    void printText(const char* txt, uint8_t multiplier = 1);
+    void printText(const char* txt, uint8_t x, uint8_t y, uint8_t multiplier = 1);
+};
+

include/ITrigger.h

@@ -0,0 +1,14 @@
+#pragma once
+#include <Arduino.h>
+
+class ITrigger
+{
+public:
+    ITrigger(/* args */) = default;
+    ~ITrigger() = default;
+
+    virtual void printText(String text) = 0;
+    virtual void printOpen() = 0;
+    virtual void printClose() = 0;
+};
+    

include/README

@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

include/Telegram.h

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+#pragma once
+#include <Arduino.h>
+#include <UniversalTelegramBot.h>
+#include <WiFiClientSecure.h>
+
+#include "ITrigger.h"
+
+class Telegram
+{
+private:
+    static const char *BOT_TOKEN;
+    static const unsigned long BOT_MTBS; // mean time between scan messages
+
+
+    unsigned long bot_lasttime;          // last time messages' scan has been done
+    ITrigger &trigger;
+    WiFiClientSecure &secured_client;
+    UniversalTelegramBot bot;
+
+    void handleNewMessages(int numNewMessages);
+
+public:
+    Telegram(WiFiClientSecure &sec_client, ITrigger &trig);
+    ~Telegram();
+
+    void init();
+    void cyclic(unsigned long now);
+};
+

include/secrets.h_template

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+#pragma once
+
+#define TELEGRAM_BOT_TOKEN "123123123123:BBCeAAewGN_wayA123VnbqRNJL4l3dpXy2S"
+#define TELEGRAM_BOT_OWNER "321123321"
+
+#define WIFI_SSID "Wifi_SSID"
+#define WIFI_PASSWORD "secretPassword"

lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+monitor_speed = 115200
+lib_deps =
+    witnessmenow/UniversalTelegramBot @ ^1.3.0
+    adafruit/Adafruit GFX Library @ ^1.11.11
+build_flags=-DTELEGRAM_DEBUG

src/FlipDotDrv.cpp

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+#include "FlipDotDrv.h"
+
+#include <Fonts/FreeSans9pt7b.h>
+
+
+FlipDotDrv::FlipDotDrv(uint8_t width, uint8_t height, uint8_t address)
+ : myCanvas{width, height}
+{
+    this->width   = width;
+    this->height  = height;
+    this->address = address;
+
+    this->FrameDataLength = (width * height / 8 * 2);
+    this->bufferLength = 5 + FrameDataLength + 3;
+
+    this->buffer = new uint8_t[this->bufferLength];
+    this->FrameData = this->buffer + 5;
+
+    pinMode(5,OUTPUT);
+    digitalWrite(5, LOW);
+
+    Serial2.begin(4800, SERIAL_8N1, 16, 17);   // (unsigned long baud, uint32_t config = 134217756U, int8_t rxPin = (int8_t)(-1), int8_t txPin = (int8_t)(-1), bool invert = false, unsigned long timeout_ms = 20000UL, uint8_t rxfifo_full_thrhd = (uint8_t)112U)
+}
+
+FlipDotDrv::~FlipDotDrv()
+{
+    free(this->FrameData);
+}
+
+void FlipDotDrv::sendRaw(const uint8_t* bmp, uint16_t length)
+{
+    char tmpBuff[3] = {0};
+    uint8_t chkSum = 0;
+
+    if (length != (this->width * this->height / 8))
+    {
+        Serial.print("length ");
+        Serial.print(length);
+        Serial.println(" [Bytes] of bitmap is invalid");
+        return;
+    }
+
+    this->buffer[0] = templateFrameStart;
+    this->buffer[1] = templateFrameAddressByte1;
+    this->buffer[2] = templateFrameAddressByte2 + this->address;
+    chkSum += this->buffer[1];
+    chkSum += this->buffer[2];
+
+    snprintf(tmpBuff, sizeof(tmpBuff), "%02X", (this->width * this->height / 8));
+    this->buffer[3] = tmpBuff[0];
+    this->buffer[4] = tmpBuff[1];
+    chkSum += this->buffer[3];
+    chkSum += this->buffer[4];
+
+    for (uint16_t i = 0; i < length; ++i)
+    {
+        snprintf(tmpBuff, sizeof(tmpBuff), "%02X", bmp[i]);
+        this->FrameData[i * 2 + 0] = tmpBuff[0];
+        this->FrameData[i * 2 + 1] = tmpBuff[1];
+
+        chkSum += tmpBuff[0];
+        chkSum += tmpBuff[1];
+    }
+
+    this->buffer[5 + FrameDataLength + 0] = templateFrameEnd;
+    chkSum += this->buffer[5 + FrameDataLength + 0];
+
+    chkSum ^= 0xff;
+    chkSum += 1;
+    snprintf(tmpBuff, sizeof(tmpBuff), "%02X", chkSum);
+    this->buffer[5 + FrameDataLength + 1] = tmpBuff[0];
+    this->buffer[5 + FrameDataLength + 2] = tmpBuff[1];
+
+    // digitalWrite(5, HIGH);
+    // delay(200);
+    Serial2.write(this->buffer, this->bufferLength);
+    Serial2.flush();
+    // delay(1000);
+    // digitalWrite(5, LOW);
+
+}
+
+
+void FlipDotDrv::printText(const char* txt, uint8_t multiplier)
+{
+    printText(txt, 0, 0, multiplier);
+}
+
+void FlipDotDrv::printText(const char* txt, uint8_t x, uint8_t y, uint8_t multiplier)
+{
+    myCanvas.fillScreen(0);
+
+    // myCanvas.setFont(&FreeSans9pt7b);
+    myCanvas.setFont(NULL);
+    myCanvas.setTextSize(multiplier);
+
+    myCanvas.setCursor(x, y);
+    myCanvas.print(txt);
+
+    uint8_t rawBuff[192] = {};
+
+    for (int i = 0; i < (this->width * this->height / 8); ++i)
+    {
+        rawBuff[i] = (myCanvas.getPixel(i / 2, ((i % 2) * 8) + 0) << 0| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 1) << 1| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 2) << 2| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 3) << 3| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 4) << 4| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 5) << 5| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 6) << 6| 
+                      myCanvas.getPixel(i / 2, ((i % 2) * 8) + 7) << 7 );
+    }
+
+    this->sendRaw(rawBuff, sizeof(rawBuff));
+}

src/Telegram.cpp

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+#include <Telegram.h>
+#include "secrets.h"
+
+const char *Telegram::BOT_TOKEN = "7502550270:AAEoCSfZJU_wayW453AmarOMIJ7k3iqQb9Y";
+const unsigned long Telegram::BOT_MTBS = 1000; // mean time between scan messages
+
+void Telegram::handleNewMessages(int numNewMessages)
+{
+    Serial.println("handleNewMessages");
+    Serial.println(String(numNewMessages));
+
+    for (int i = 0; i < numNewMessages; i++)
+    {
+        String chat_id = bot.messages[i].chat_id;
+        String text = bot.messages[i].text;
+
+        String from_name = bot.messages[i].from_name;
+        if (from_name == "")
+            from_name = "Guest";
+
+        if (text == "/send_test_action")
+        {
+            bot.sendChatAction(chat_id, "typing");
+            delay(4000);
+            bot.sendMessage(chat_id, "Did you see the action message?");
+
+            // You can't use own message, just choose from one of bellow
+
+            // typing for text messages
+            // upload_photo for photos
+            // record_video or upload_video for videos
+            // record_audio or upload_audio for audio files
+            // upload_document for general files
+            // find_location for location data
+
+            // more info here - https://core.telegram.org/bots/api#sendchataction
+        }
+
+        if (text == "/send_test_action2")
+        {
+            bot.sendChatAction(chat_id, "find_location");
+            delay(4000);
+            bot.sendMessage(chat_id, "Did you see the action message?");
+        }
+
+        if (text.startsWith("/txt "))
+        {
+            trigger.printText(text.substring(5));
+        }
+
+        if (text.startsWith("/open"))
+        {
+            trigger.printOpen();
+        }
+
+        if (text.startsWith("/close"))
+        {
+            trigger.printClose();
+        }
+
+        if (text == "/start")
+        {
+            String welcome = "Welcome to Universal Arduino Telegram Bot library, " + from_name + ".\n";
+            welcome += "This is Chat Action Bot example.\n\n";
+            welcome += "/send_test_action : to send test chat action message\n";
+            welcome += "/send_test_action2 : to send test chat action message\n";
+            bot.sendMessage(chat_id, welcome);
+        }
+    }
+}
+
+Telegram::Telegram(WiFiClientSecure &sec_client, ITrigger &trig)
+    : trigger(trig), secured_client(sec_client), bot(BOT_TOKEN, sec_client) {}
+
+Telegram::~Telegram() {}
+
+void Telegram::init()
+{
+    secured_client.setInsecure();
+    secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
+    secured_client.setHandshakeTimeout(5);
+    // secured_client.setTimeout(5);
+
+    Serial.println("clearing old messages");
+    int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
+    while (numNewMessages)
+    {
+        for (int i = 0; i < numNewMessages; i++)
+        {
+            String chat_id = bot.messages[i].chat_id;
+            String text = bot.messages[i].text;
+            String from_name = bot.messages[i].from_name;
+
+            String txt = String("ignored '") + text + String("' from ") + from_name +String("(")  + chat_id + String(")");
+
+            Serial.println(txt);
+        }
+        numNewMessages = bot.getUpdates(bot.last_message_received + 1);
+    }
+
+    bot.sendMessage(TELEGRAM_BOT_OWNER, "Hi I'm online.");
+    bot_lasttime = millis();
+}
+
+void Telegram::cyclic(unsigned long now)
+{
+    if (now - bot_lasttime > BOT_MTBS)
+    {
+        Serial.print(bot.last_message_received);
+        Serial.println(" checking");
+
+        auto stat = WiFi.status();
+        Serial.println("WifiStat= ");
+        Serial.println(stat);
+
+        int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
+
+        while (numNewMessages)
+        {
+            handleNewMessages(numNewMessages);
+            numNewMessages = bot.getUpdates(bot.last_message_received + 1);
+        }
+
+        bot_lasttime = now;
+    }
+}

src/main.cpp

@@ -0,0 +1,124 @@
+#include <Arduino.h>
+#include <WiFi.h>
+#include <WiFiClientSecure.h>
+
+#include "Telegram.h"
+#include "ITrigger.h"
+#include "FlipDotDrv.h"
+#include "secrets.h"
+
+// BearSSL::WiFiClientSecure secured_client;
+WiFiClientSecure secured_client;
+bool Start = false;
+
+FlipDotDrv flip(96, 16, 1);
+
+class myTrigger : public ITrigger
+{
+private:
+  /* data */
+public:
+  myTrigger(/* args */) = default;
+  ~myTrigger() = default;
+
+  void printText(String text) override
+  {
+    Serial.print("Display would show '");
+    Serial.print(text);
+    Serial.println("'");
+    flip.printText(text.c_str());
+  }
+
+  void printOpen() override
+  {
+    flip.printText("offen", 18, 0, 2);
+  }
+
+  void printClose() override
+  {
+    flip.printText("geschlossen", 15, 4, 1);
+  }
+
+} trigg;
+
+
+Telegram tele(secured_client, trigg);
+
+uint8_t rawBuff[192] = {};
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println();
+
+
+
+  Serial.println("Initializing Display");
+  flip.sendRaw(rawBuff, sizeof(rawBuff));
+
+  delay(500);
+  Serial.println("draw checker");
+  memset(rawBuff, 0xAA, 192);
+  for (int i = 0; i < 192; ++i)
+  {
+    if ((i % 4) < 2)
+      rawBuff[i] = 0xAA;
+    else
+      rawBuff[i] = 0x55;
+  }
+  flip.sendRaw(rawBuff, sizeof(rawBuff));
+  delay(500);
+  Serial.println("bigger checker");
+  for (int i = 0; i < 192; ++i)
+  {
+    if ((i % 8) < 4)
+      rawBuff[i] = 0x33;
+    else
+      rawBuff[i] = 0xCC;
+  }
+  flip.sendRaw(rawBuff, sizeof(rawBuff));
+  delay(500);
+  Serial.println("largest checker");
+  for (int i = 0; i < 192; ++i)
+  {
+    if ((i % 16) < 8)
+      rawBuff[i] = 0x0F;
+    else
+      rawBuff[i] = 0xF0;
+  }
+  flip.sendRaw(rawBuff, sizeof(rawBuff));
+
+  // attempt to connect to Wifi network:
+  Serial.print("Connecting to Wifi SSID ");
+  Serial.print(WIFI_SSID);
+  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
+  while (WiFi.status() != WL_CONNECTED)
+  {
+    Serial.print(".");
+    delay(500);
+  }
+  Serial.print("\nWiFi connected. IP address: ");
+  Serial.println(WiFi.localIP());
+
+  Serial.print("Retrieving time: ");
+  configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
+  time_t now = time(nullptr);
+  while (now < 24 * 3600)
+  {
+    Serial.print(".");
+    delay(100);
+    now = time(nullptr);
+  }
+  Serial.println(now);
+
+
+  tele.init();
+}
+
+void loop()
+{
+  unsigned long now = millis();
+
+  tele.cyclic(now);
+  yield();
+}

test/README

@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html