A simple ESP32 project that displays real-time clock, temperature, and WiFi signal strength on a 1.3" OLED screen.

A compact ESP32-based mini-dashboard that displays real-time clock, temperature, and WiFi RSSI on a 1.3" SH1106/SSD1306 OLED display.
Designed to be simple, readable, and always on.

• Real-time NTP-synchronized clock
• Temperature monitoring (internal/external)
• WiFi signal strength indicator
• Button-controlled screen switching
• Large, easy-to-read text
• Auto WiFi reconnect

• ESP32 development board
• 1.3" I2C OLED (SH1106 or SSD1306)
• Momentary push button
• 10kΩ resistor (pull-down)
• Optional temperature sensor (DHT11/DHT22)
• Jumper wires

• Arduino IDE
• Libraries:
  • WiFi.h
  • Wire.h
  • NTPClient
  • WiFiUdp
  • U8g2 / Adafruit SSD1306
  • Adafruit GFX
  • Temperature sensor library (optional)

Explanation:
The 10kΩ resistor pulls GPIO 23 LOW by default.
Pressing the button connects GPIO 23 to 3.3V → reads HIGH → screen changes.

1. Install ESP32 board support in Arduino IDE
2. Install required libraries
3. Open the .ino file
4. Set WiFi SSID and password
5. Select ESP32 Dev Module
6. Upload

• ESP32 connects to WiFi on boot
• Button on GPIO 23 switches between screens:
  1. Clock
  2. Temperature
  3. WiFi signal strength
• Display updates automatically

This project is open-source under the MIT License.

Amiel Josh Basug