/*******************************************************************
A telegram bot for your ESP8266 that controls the
onboard LED. The LED in this example is active low.
Parts:
D1 Mini ESP8266 * - http://s.click.aliexpress.com/e/uzFUnIe
(or any ESP8266 board)
= Affilate
If you find what I do useful and would like to support me,
please consider becoming a sponsor on Github
https://github.com/sponsors/witnessmenow/
Written by Brian Lough
YouTube: https://www.youtube.com/brianlough
Tindie: https://www.tindie.com/stores/brianlough/
Twitter: https://twitter.com/witnessmenow
*******************************************************************/
#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
// Wifi network station credentials
#define WIFI_SSID "SSID"
#define WIFI_PASSWORD "PASSWORD"
// Telegram BOT Token (Get from Botfather)
#define BOT_TOKEN "XXXXXXXXX:XXXXXXXXXXXXXXXXXXX"
const unsigned long BOT_MTBS = 1000; // mean time between scan messages
X509List cert(TELEGRAM_CERTIFICATE_ROOT);
WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);
unsigned long bot_lasttime; // last time messages' scan has been done
const int ledPin = LED_BUILTIN;
int ledStatus = 0;
int id = 0;
void handleNewMessages(int numNewMessages)
{
Serial.print("handleNewMessages ");
Serial.println(numNewMessages);
for (int i = 0; i < numNewMessages; i++)
{
String chat_id = bot.messages[i].chat_id;
String text = bot.messages[i].text;
Serial.print("Message ID = ");
Serial.println(bot.messages[i].message_id);
Serial.print("Update ID = ");
Serial.println(bot.messages[i].update_id);
id = bot.messages[i].message_id;
String from_name = bot.messages[i].from_name;
if (from_name == "")
from_name = "Guest";
if (text == "/ledon")
{
digitalWrite(ledPin, LOW); // turn the LED on (HIGH is the voltage level)
ledStatus = 1;
bot.sendMessage(chat_id, "Led is ON", "");
}
if (text == "/ledoff")
{
ledStatus = 0;
digitalWrite(ledPin, HIGH); // turn the LED off (LOW is the voltage level)
bot.sendMessage(chat_id, "Led is OFF", "");
}
if (text == "/status")
{
if (ledStatus)
{
bot.sendMessage(chat_id, "Led is ON", "");
}
else
{
bot.sendMessage(chat_id, "Led is OFF", "");
}
}
if (text == "/start")
{
String welcome = "Welcome to Universal Arduino Telegram Bot library, " + from_name + ".\n";
welcome += "This is Flash Led Bot example.\n\n";
welcome += "/ledon : to switch the Led ON\n";
welcome += "/ledoff : to switch the Led OFF\n";
welcome += "/status : Returns current status of LED\n";
bot.sendMessage(chat_id, welcome, "Markdown");
}
}
}
void setup()
{
Serial.begin(115200);
Serial.println();
pinMode(ledPin, OUTPUT); // initialize digital ledPin as an output.
delay(10);
digitalWrite(ledPin, HIGH); // initialize pin as off (active LOW)
// attempt to connect to Wifi network:
configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
secured_client.setTrustAnchors(&cert); // Add root certificate for api.telegram.org
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());
// Check NTP/Time, usually it is instantaneous and you can delete the code below.
Serial.print("Retrieving time: ");
time_t now = time(nullptr);
while (now < 24 * 3600)
{
Serial.print(".");
delay(100);
now = time(nullptr);
}
Serial.println(now);
}
void loop()
{
if (millis() - bot_lasttime > BOT_MTBS)
{
int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
while (numNewMessages)
{
Serial.println("got response");
handleNewMessages(numNewMessages);
numNewMessages = bot.getUpdates(bot.last_message_received + 1);
}
Serial.print("Printing ID from loop() - ID = ");
Serial.println(id);
bot_lasttime = millis();
}
}
