EleksCava Crypto Ticker User Guide（Demo Firmware）

📌 Product Overview

EleksCava is a Wi-Fi enabled ESP32-based development kit featuring a 2.9-inch E-Ink display, RGB indicator LEDs, and capacitive touch buttons. It is designed for developers and makers to prototype visual data interfaces, IoT displays, and low-power projects.

Note: The included firmware displays cryptocurrency data using publicly available APIs for testing and demonstration purposes only. It is not intended for commercial use.

EleksCava Display

🛠 Hardware Specifications

  • MCU: ESP32-WROOM-32
  • Display: 2.9" E-Ink screen (black & white)
  • RGB LED: WS2812B x3
  • Touch Input: 3 capacitive touch keys
  • Interface: USB-C (power & serial)
  • Battery: 3.7V 1200mAh LiPo with TP4056
  • Stacking: Via bundled mechanical clips (2 included)
  • Framework: PlatformIO / Arduino compatible

🌟 Key Features

📜 E-Ink Display

  • High contrast and glare-free
  • Wide viewing angle
  • Extremely low power consumption

⚡ Programmable Platform

  • ESP32 open hardware
  • Customizable display logic
  • Demo firmware pre-installed

🖥 Web-Based Configuration

  • Connects via 2.4GHz Wi-Fi
  • No mobile app installation required
  • Access configuration via browser

🔄 Developer-Friendly

  • OTA firmware updates
  • Open-source firmware compatibility
  • Supports user customization

🚀 Quick Start Guide

🔌 0. Power Supply

  • Use a 5V/1A USB power adapter
  • Can also run from a USB port
  • USB-C cable included

📶 1. First Connection

WiFi Connection

  • On power-up, the board enters config mode
  • Connect to Wi-Fi: EleksCava_XXXX (no password)

🌐 2. Network Configuration

Network Setup

  1. Visit http://192.168.4.1 in a browser
  2. Select your home Wi-Fi
  3. Enter password and save
  4. The device reboots and connects

🖥 3. Using the Demo Firmware

  • Default screen: BTC/USD price
  • Use buttons to cycle through coins
  • Press Key B to view device IP
  • Use this IP in a browser to access settings

🎮 Button Operations

▶️ Basic Controls

Button Function
Key A Previous item
Key B Change display mode
Key C Next item

⚙️ Special Operations

Button Combo Action
Key A + Key C (hold 3s) Reset Wi-Fi and config

📺 Display Modes

💰 1. Demo Price Mode

Crypto Mode

  • Shows live price via API (non-commercial)
  • Includes 24hr change data

🕰 2. Clock Mode

Clock Mode

  • Displays current time and date
  • Auto timezone support

📊 3. Chart Mode (Coming Soon)

Chart Mode

  • Historical price chart
  • High / Low trend

⚙️ Device Management

🔗 Accessing Settings Panel

Management Portal

  • Press Key B to display device IP
  • Enter IP in browser to change settings

🛠 Troubleshooting

🔌 Power Issues

  • Use 5V/1A USB adapter
  • Use quality USB-C cable

📶 Wi-Fi Troubleshooting

  • Check password
  • Stable signal required
  • If fails, device reverts to config mode

📈 Data Issues

  • Updates every 30 seconds
  • Ensure reliable internet connection

🛠 Technical Support

Note: This kit is designed for educational, prototyping, and non-commercial uses.