Introduction: Real-Time Crypto Dashboard With ESP32 and Nextion Display (Binance API)

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About: World of E- project

In this tutorial, I’ll show you how I built a real-time cryptocurrency dashboard using an ESP32 microcontroller and a Nextion touchscreen display.

The system fetches live crypto data from Binance API and displays it with auto-scaling charts, color-coded values, and alerts for support/resistance.

No external server or PC needed — just hardware + code


Perfect for anyone interested in:

  1. Crypto + IoT
  2. ESP32 Projects
  3. DIY Dashboards
  4. Real-time data visualization

Let’s get started!

Supplies

ESP32 Dev Board-1-Any generic ESP32 board

Nextion Display-1-I used 10-inch model

USB cable + 5V supply-1-For powering ESP32 and/or Nextion display

Jumper wires-Several-For TX/RX and power connections

Optional: Micro SD card-1-or uploading Nextion .tft file

Step 1: Hardware Wiring

Connect the ESP32 to the Nextion display:
  1. Nextion TX → ESP32 GPIO17 (RX2)
  2. Nextion RX → ESP32 GPIO16 (TX2)
  3. VCC → 5V
  4. GND → GND
  5. Make sure TX goes to RX and vice versa.


Step 2: Designing the UI With Nextion Editor

Use Nextion Editor to create the display layout

Add buttons, text boxes, and chart components

Export the .tft file to SD card and flash the display

(Include screenshots of the UI design here)

Attachments

Step 3: ESP32 Code Overview

Written in Arduino IDE

Uses FreeRTOS tasks for Nextion & Wi-Fi communication

Binance API fetches prices every few seconds

Displays current price, % change, high/low

Live chart updates dynamically

Attachments

Step 4: Features Demo

Step 5: Customize It

You can expand this project by:
  1. Adding candlestick charts
  2. Sending alerts to Telegram
  3. Logging data to SD card or cloud
  4. Using other APIs or adding volume/RSI data


Step 6: Code + UI Files Upload

.ino or .zip of Arduino code

.hmi and .tft from Nextion

Step 7: Final Step: Wrap-up

That’s it! You've now built a live crypto dashboard that fetches real-time Binance data and displays it on a custom touchscreen interface using ESP32.

Let me know in the comments what you'd add or improve in version 2!