ESP32 Smart Thermometer with Telegram Alerts
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Smart thermometer esp32 + dht22 with telegram alerts – rgb leds, oled display
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- Printables
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- Creative Commons — Attribution — Noncommercial
SMART THERMOMETER ESP32 + DHT22 WITH TELEGRAM ALERTS – RGB LEDS, OLED DISPLAY
Are you looking for an IoT project for environmental monitoring? This Smart WiFi Thermometer is an advanced monitoring solution enclosed in a fully 3D-printed, elegant housing.
Using the reliable ESP32-C3 Super Mini and the DHT22 sensor, the device doesn’t just display temperature and humidity—it acts as a complete alarm system.
Its real strength lies in the Telegram integration: you can configure two temperature thresholds, adjust LED brightness, and receive instant push notifications on your smartphone, all through simple chat commands.
It also provides immediate visual feedback through RGB LEDs (Green, Yellow, Red).
✨ Main Features
- Optimized 3D Design: Compact enclosure hides all cables and components.
- RGB LED Visual Feedback: WS2811 LED strip on the diffuser changes color based on temperature.
- IoT Remote Control: Configure thresholds and receive instant alerts via Telegram Bot.
- Affordable Components: Uses standard, easily available parts.
🔩 Components Needed
- Microcontroller: ESP32-C3 Super Mini
- Sensor: DHT22 (pins removed for compact assembly)
- Display: 0.91" OLED (I2C)
- LED Strip: WS2811 RGB
- PCB 30 x 70: Prototype PCB (cut to size)
- Connectors: JST connectors + 2-pin screw terminal
- Power: USB Type-C connector
- Hardware: M2x5 flat head screws, heat-set threaded inserts
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