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EleksCava User Guide
Complete setup and usage guide for your EleksCava cryptocurrency and stock market display device.
Product Overview
EleksCava is an ESP32-based intelligent financial market display featuring a 2.9-inch E-Ink screen for real-time cryptocurrency and stock price monitoring.
•Dual market support for cryptocurrencies (Bitcoin, Ethereum, etc.) and stocks (US, A-shares, Hong Kong stocks)
•Real-time data updates from professional financial data sources
•E-Ink display: Low power consumption, eye-friendly, persistent display when powered off
•LED trend indicators: Visual price change indication through color changes
•Web configuration interface: Easy device parameter configuration through browser
•Multi-device stacking: Support for up to 5 devices stacked vertically
Getting Started
1. Power On Your Device
Connect your EleksCava to a power source using the USB-C cable. The device will automatically power on and display the startup screen. If WiFi is not configured, it will automatically enter configuration mode.
2. WiFi Setup
- When the device enters AP mode, the LED indicator turns blue
- Search for WiFi networks on your phone or computer
- Find and connect to the hotspot named 'EleksCava_XXXX' (XXXX is the last four digits of MAC address)
- The hotspot requires no password, connect directly
3. Network Configuration
- After connecting to the hotspot, the configuration page should automatically open in your browser
- If it doesn't open automatically, manually visit: http://192.168.4.1
- In the configuration page: Select your WiFi network (2.4GHz only), Enter WiFi password, Click 'Save' button
- The device will automatically restart and connect to your WiFi network
Button Functions
Basic Button Functions
| Key | Function |
|---|---|
| Key A | Switch to next cryptocurrency or stock |
| Key B | Switch display mode (Cryptocurrency → Stock → Time → Weather → Device Info → QR Code) |
| Key C | Switch to previous cryptocurrency or stock |
Combination Button Functions
| Combination | Function |
|---|---|
| A + C (10s) | A + C long press (10 seconds): Enter WiFi configuration mode (AP mode), LED turns blue |
Cryptocurrency Configuration
Accessing Configuration Interface
- Enter the device IP address in your browser
- Navigate to the main configuration page and find the 'Cryptocurrency Settings' section
Adding Cryptocurrencies
- Enter cryptocurrency symbol in the input box (e.g., BTC, ETH, XRP)
- Smart suggestions will appear to help you select the correct cryptocurrency
- Click the '1.Add' button to add it to the list
- Maximum of 10 cryptocurrencies supported
Supported Cryptocurrencies:
BTC (Bitcoin)
ETH (Ethereum)
XRP (Ripple)
USDT (Tether)
SOL (Solana)
BNB (Binance Coin)
DOGE (Dogecoin)
ADA (Cardano)
TRX (Tron)
LTC (Litecoin)
Managing Cryptocurrency List
•Adjust order: Use 'Up'/'Down' buttons next to each coin to adjust display order
•Delete coins: Click 'Delete' button to remove unwanted cryptocurrencies
•Set holdings: Click 'Set' button to configure your holding amounts (optional feature)
•Reset list: Click 'Reset' button to restore default list
Sync to Device
- After completing list configuration, the '2.Sync to Device' button will automatically activate
- Click this button to sync configuration to device
- After successful sync, device will automatically update display
- Use device buttons A/C to cycle through different cryptocurrencies
Stock Configuration
Accessing Stock Configuration
Find the 'Stock Settings' section in the Web management interface
Adding Stocks
Supported Markets:
US Stock: US stocks (e.g., AAPL, TSLA, GOOGL)
Shanghai (SH): Shanghai Stock Exchange
Shenzhen (SZ): Shenzhen Stock Exchange
Hong Kong (HK): Hong Kong Exchange
Beijing (BJ): Beijing Stock Exchange
Gold (SGE): Shanghai Gold Exchange
China Futures (NF): Domestic Futures
Gold Futures (COMEX): International Gold Futures
Futures Market: International Futures Market
- Select market type from dropdown menu
- Enter corresponding stock code
- Click '1.Validate' button to verify code validity
- After validation, click '2.Add' button to add
- After configuration, click '3.Sync to Device' button
Stock Display Information
- US stocks display $ symbol
- A-shares display ¥ symbol
- Hong Kong stocks display HK$ symbol
- Support for after-hours trading data (US stocks)
- Display 'Not Trading Hours' during non-trading times
Firmware Updates
Update Preparation
- Ensure device is powered on and running normally before starting the update
- Check current version: View current firmware version in device Web management interface
- Stable network environment: Ensure stable WiFi or USB connection
- Sufficient power: Keep device connected to USB power during update
Web Interface Update (Recommended)
Online Update Method
- Visit official website: Use computer browser to visit www.elekscava.com/firmware
- Connect device: Ensure computer and EleksCava device are on same network
- Enter update mode: Find 'Firmware Update' option in device Web management interface or visit http://[device-IP]/firmware
- Select update method: Online update (download latest firmware directly from server) or Local update (upload downloaded firmware file)
WebSerial Update
- Preparation: Use browser supporting WebSerial API (Chrome 89+, Edge 89+), Prepare USB-C data cable to connect device to computer
- Access firmware page: Visit www.elekscava.com/firmware using Chrome or Edge browser
- Connect device: Connect your EleksCava device to your computer via USB-C cable
- Start update: Click 'Install Firmware' button, Select the serial port when prompted, Wait for installation to complete (about 2-3 minutes)
Update Precautions
Pre-update Check
- Backup configuration: Important WiFi and coin configurations may need to be reset after update
- Network stability: Ensure stable network connection during update process
- Power guarantee: Do not disconnect power or remove USB connection during update
During Update
- Progress display: Device screen will show update progress during update
- LED indication: LED will show special colors during update (usually purple or white flashing)
- Auto restart: Device will automatically restart after update completion
- Time requirement: Entire process usually takes 3-5 minutes
Post-update Setup
- Verify version: Confirm firmware version has been updated in Web management interface
- Reconfigure: Check and reset WiFi, coin list and other configurations
- Function test: Test all button functions and display modes are working properly
If Update Fails
Recovery Steps
- Reconnect USB cable and try updating again
- If device doesn't respond, disconnect and reconnect power, then retry
- Contact support at [email protected] if problems persist
Advanced Settings
Refresh Intervals
•Data update: Automatically fetch latest data every 30 seconds
•Screen full refresh: Default full screen refresh every 60 minutes
•Auto play: Set interval for automatic content switching
LED Indicator Settings
•Green: Price increase (configurable to reverse)
•Red: Price decrease (configurable to reverse)
•Blue: WiFi configuration mode
•White: No price change
•Rainbow effect: Time display and other special modes
Brightness levels: Off, Low (10%), Medium (50%), High (100%)
Timezone Settings
- Default automatic timezone detection
- Manual timezone selection (UTC-12 to UTC+14)
- Affects time display and trading hours judgment
Frequently Asked Questions
How to reconfigure WiFi?
Simultaneously long press buttons A and C for about 10 seconds, when LED turns blue you can reconfigure network.
Why can't I see my WiFi network?
Device only supports 2.4GHz WiFi, please confirm your router has 2.4GHz band enabled.
How to perform factory reset?
- Complete device reset: Visit www.elekscava.com/firmware and perform firmware update with 'Erase Flash' option checked to completely clear device data
- WiFi reset only: Press and hold Key A+C for 10 seconds on the device, wait for device to enter AP mode, then reconfigure network settings
How often does data update?
Device automatically fetches latest data every 30 seconds, screen defaults to full refresh every 60 minutes to prevent ghosting.
Which cryptocurrencies are supported?
- Supports mainstream cryptocurrencies on CoinGecko (maximum 10), defaults include:
- BTC (Bitcoin), ETH (Ethereum), XRP (Ripple)
- USDT (Tether), SOL (Solana), BNB (Binance Coin)
- DOGE (Dogecoin), ADA (Cardano), TRX (Tron), and more...
Which stock markets are supported?
- US stocks: All NYSE and NASDAQ stocks
- A-shares: All Shanghai and Shenzhen stocks
- Hong Kong stocks: Hong Kong Exchange main board stocks
Is E-Ink screen flickering normal?
Yes, normal. E-Ink screens have brief flickering during refresh, this is a technical characteristic.
Can multiple coins be displayed simultaneously?
Device displays one coin/stock at a time, use buttons A/C to quickly switch between different items.
Why won't the device start properly after power loss?
First disconnect power from the device, then hold any key (A, B, or C), toggle the ON/OFF power switch several times to completely discharge the device, then reconnect power to restart.
Technical Support
If you encounter usage issues, please get help through the following methods:
- Official website: www.elekscava.com
- Firmware updates: Visit official website regularly for latest firmware
- Technical support email: [email protected]
Important Notes
•Power requirements: Use 5V/1A or higher USB power adapter
•Network requirements: Stable 2.4GHz WiFi network connection required
•Operating temperature: 0°C ~ 40°C
•Screen protection: Avoid prolonged direct sunlight and high temperature environments
•Data accuracy: Display data is for reference only, please refer to official exchange data