For a quick and reliable way to turn on a computer from anywhere, without the need to forward broadcast packets or maintain local servers, a Telegram bot on an ESP32.
Key benefits:
- 🍃Low power consumption
- 📶Wireless
- ❌💻No need for raspberry pi or equivalents
- ❌🕸️ Don't need a static IP
To create such a bot, you need to use an ESP32 dev board, which can connect to a local network via Wi-Fi and consumes very little power — less than half a watt.
For ease of use, you can use the Arduino Framework.
The code for the bot should be simple and clear and can be found on Github. To compile, you need to install additional libraries:
To set up the bot, you need to fill in the Wi-Fi configuration and MAC address of the target device, as well as the Telegram user token and ID, so that no one else can use the bot.
// Telegram Bot Token
#define BOT_TOKEN "0000000000:000000000000000000000000000000000000"
#define ALLOWED_ID "000000000"
// WiFi configuration
#define WIFI_SSID "<wifi-network-name>"
#define WIFI_PASS "<wifi-password>"
// MAC address of the target device
#define MAC_ADDR "00:00:00:00:00:00" The code also revised the reboot of the board once every 4 hours so that the board does not freeze. And using the Telegram API every 5 seconds.
const unsigned long BOT_MTBS = 5000;
const unsigned long RESTRART_MTBS = 1000 * 3600 * 4; Using the bot is very simple — just send the /start command to get a list of available commands and use the /wol command.