EleksCava Web Installer

Install the latest firmware for your device and experience new features

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Local Configuration Portal

The new firmware provides a local web configuration portal to manage cryptocurrency lists and other settings without registration.

Real-time Data

Get real-time cryptocurrency prices and market data through efficient API connections, responding quickly to market changes.

Easy Installation

Install firmware directly through your browser with no additional software needed. Complete device updates in minutes.

Before Installation

This is a brand-new firmware for the EleksCava product with a local web configuration portal.
The new version allows you to manage cryptocurrency lists locally without registration.
Use Google Chrome or Microsoft Edge browser
Connect your device via USB
Make sure no other program is using the serial port

Firmware Installation

Select firmware version to install:

Complete system installation. All settings and files will be erased.

Note: The latest version (v1.3.8) includes WiFi roaming optimization for better network stability. If you are in mainland China or the US, you can use Gate.io API as an alternative data source (available in both v1.3.8 and v1.3.7).

Installation Steps

Click the Install button above
Select your device from the port list
Wait for the installation to complete
Your device will restart automatically

Do not disconnect your device during the installation process!

CAUTION: THIS FIRMWARE IS SPECIFICALLY DESIGNED FOR ELEKSCAVA MODELS ONLY. BEFORE FLASHING, ENSURE NO OTHER SMART DEVICES ARE CONNECTED TO YOUR USB PORTS. WE ARE NOT RESPONSIBLE FOR ANY DEVICE DAMAGE CAUSED BY FLASHING OPERATIONS.

Usage Guide

Setup Steps

Power the device using a USB cable, device requires 5V/1A power input
On first use, wait for the device to enter 'AP Mode', follow the on-screen instructions to connect to the device's WiFi hotspot (EleksCava_XXXX) using your phone or computer
Open a browser and visit http://192.168.4.1 to access the device configuration portal web page, then click the green button to enter the configuration page
On the configuration page, you can manually enter or search for nearby 2.4G WiFi networks, enter the correct WiFi password and send it to the device
After receiving the WiFi configuration, the device will automatically restart and enter the cryptocurrency display interface, showing BTC/USDT market data by default

Button Functions

Keys A/C to switch between cryptocurrencies (cycling through the device's built-in default list)
Key B to switch display between clock mode and device information screen, where you can see the device's IP address in the local network
Hold Keys A+C for 10 seconds to reset WiFi and restore factory settings

Device Configuration

Access the device's configuration portal web page by visiting its IP address in your local network. In the configuration portal, you can modify device WiFi settings, time sync server/timezone, cryptocurrency list management, cryptocurrency data source selection (switch to Binance US API if you are in the US), LED indicator brightness, and more.

Changelog (v1.3.8 - 2025-04-04)

Version 1.3.8 *WiFi Roaming Optimization 2025-04-04

Smart Roaming Features:
Integrated ESP-IDF WiFi Roaming functionality for optimized multi-AP switching
Added 802.11k-based roaming support
Implemented intelligent AP scoring system considering signal strength and channel quality
Optimized roaming trigger conditions and timing
Improved AP switching smoothness
Roaming Strategy Improvements:
Added RSSI threshold trigger mechanism (-70dBm)
Implemented signal strength improvement detection (minimum 10dBm)
Optimized scanning interval (10 seconds)
Implemented smart channel scoring
Added protection mechanism against frequent switching
System Stability:
Optimized WiFi event handling
Improved resource management and memory usage
Enhanced error recovery mechanisms
Improved logging system
Maintained compatibility with existing features
Technical Details:
Roaming Trigger Conditions:
* RSSI below -70dBm
* Scan interval 10 seconds
* Signal improvement threshold 10dBm
AP Scoring Weights:
* RSSI weight 65%
* Channel quality weight 35%
802.11k Support:
* Enabled neighbor reports
* Fast roaming support
Compatibility:
Fully compatible with v1.3.7
No reconfiguration required
Recommended update for all users
Automatic preservation of existing network settings
Known Issues:
None

Version 1.3.7 *API Enhancement & LED Control Optimization 2025-04-03

API Enhancements:
Added Gate.io API integration and optimization
Improved API proxy and error handling mechanisms
Enhanced cryptocurrency name and symbol mapping
Implemented smart API fallback strategy
Added comprehensive API health monitoring
LED Brightness Control Improvements:
Added Ultra Low brightness mode (5%)
Implemented LED OFF option
Optimized brightness adjustment logic
Enhanced brightness configuration persistence
Improved power consumption management
System Stability Enhancements:
Fixed cryptocurrency symbol restoration after restart
Optimized symbol list management
Improved configuration persistence
Enhanced system state recovery
Added automatic configuration backup
Technical Details:
New API endpoint: api.gateio.com
Brightness levels: OFF, 5%, 10%, 50%, 100%
Enhanced symbol state preservation
Improved configuration validation
Compatibility:
Fully compatible with v1.3.6
No configuration changes required
Recommended update for all users
Known Issues:
None

Version 1.3.6 *Configuration Portal Enhancement & Static IP Support 2025-04-02

Configuration Portal Improvements:
Added static IP configuration support
Enhanced network settings interface
Added IP configuration validation
Improved network setup workflow
Enhanced configuration persistence
Static IP Features:
Manual IP address configuration
Subnet mask and gateway settings
DNS server configuration options
IP validation and format checking
Automatic configuration backup
User Interface Updates:
Redesigned network settings page
Added IP configuration tooltips
Enhanced input validation feedback
Improved error message display
Added network status indicators
Technical Improvements:
Enhanced IP configuration storage
Optimized network initialization
Improved configuration validation
Added network parameter persistence
Compatibility:
Compatible with v1.3.5
No configuration changes required
Existing dynamic IP settings preserved
Recommended update for all users

Version 1.3.5 *Memory Optimization & Stability Enhancement 2025-04-02

Memory Management Optimization:
Optimized runtime memory usage
Improved memory cleanup strategy (every 40 minutes)
Enhanced SSL connection pool management
Optimized resource release timing
Implemented staged resource cleanup mechanism
API Connection Stability:
Fixed system crashes caused by SSL connection failures
Optimized API retry mechanism
Increased retry intervals
Implemented non-blocking SSL connections
Added network status monitoring
System Stability Improvements:
Increased task watchdog timeout to 60 seconds
Optimized task scheduling
Enhanced error recovery process
Improved system status monitoring
Optimized system restart strategy
Display Optimization:
Unified API error message format
Standardized three-line error message display
Added device IP address display
Improved user prompt readability
Auto-Update Control:
Added auto-update flag and task handler
Optimized update task management
Enhanced configuration persistence
Compatibility:
Compatible with v1.3.4
No configuration changes required
Recommended update for all users

Version 1.3.4 *Binance US API Support & Configuration Enhancement 2025-03-28

API Enhancement:
Added Binance US API data source option
Enabled access for users in the United States
Optimized API source switching mechanism
Improved error handling process
Enhanced data retrieval stability
Configuration Interface Improvements:
Updated cryptocurrency data source selection interface
Added Binance US API option description
Optimized configuration saving process
Improved error message display
Enhanced user interaction experience
Technical Details:
New API source: Binance US (api.binance.us)
Maintained same data format as Binance Global API
Optimized API response processing logic
Enhanced error recovery mechanism
Improved configuration validation
Compatibility:
Fully compatible with v1.3.3
No configuration changes required
Recommended update for all users
First boot after update may require longer initialization time (about 20 seconds)
Known Issues:
None

Version 1.3.3 *Beta Version - Binance API Migration & Memory Optimization (Erase device Required) 2025-03-27

Installation Requirements:
Complete flash erase is MANDATORY before upgrading
USB connection required (OTA functionality removed)
API Migration:
Switched to Binance API for cryptocurrency data
Optimized API request strategy for better efficiency
Added smart retry mechanism for network stability
Implemented API rate limiting protection
Enhanced error handling and feedback
Memory Management:
Optimized task stack sizes: Crypto(8192), Display(4096), WiFi(4096), LED(4096)
Reduced memory thresholds: SSL(40KB->20KB), Display Cache(32KB->16KB), Min Heap(20KB->15KB)
Implemented staged resource cleanup strategy
Enhanced memory fragmentation handling
Added detailed memory monitoring and logging
Display System:
Forced full screen refresh to fix screen brightness issues
Optimized time update logic (once per minute)
Improved device info display and interface transitions
Enhanced display stability during refresh
Known Issues:
Due to Binance API regional restrictions, users in mainland China and the United States cannot access cryptocurrency data directly
Users in restricted regions should consider using v1.2.14 (CoinCap API version) instead

Version 1.2.17 *Beta Version - Significant stability improvements 2025-03-12

NVS Storage Robustness:
Improved NVS storage detection and recovery mechanisms
Enhanced configuration parameter reading process to prevent NOT_FOUND crashes
Optimized default value fallback mechanism for system stability
Added NVS partition status monitoring for early detection of storage issues
Implemented multi-level storage recovery strategies for better boot success rate
File System Security Enhancements:
Fixed file system permission issues that caused temporary file creation failures
Improved LittleFS initialization with health check mechanisms
Implemented space verification before configuration file writing
Optimized temporary file operations to ensure configuration atomicity
Added file operation result validation for data integrity
Core Component Stability:
Optimized CryptoManager memory usage with proactive memory monitoring
Enhanced soft vs. hard restart handling with optimized boot processes
Improved JSON processing based on available memory
Enhanced SPI bus resource management between display and other SPI devices
Implemented real-time monitoring and automatic recovery of critical system states
Market Value Display Optimization:
Improved cryptocurrency market value display rules for better readability
Optimized large number formats with smart unit conversion (K, M, B)
Implemented dynamic price precision adjustment based on value magnitude
Enhanced percentage change display with better handling of extreme values
Added scaled display for large market values to maintain visual aesthetics
Technical Details:
Increased NVS initialization retry attempts from 3 to 5
Reserved minimum 100KB memory at boot, forcing cleanup if below threshold
Added file system write protection with automatic fallback to read-only mode
Dynamic JSON parsing based on memory conditions
Enhanced NVS configuration reading with default value validation
Market value formatting rules: >1000 as K, >1000000 as M, >1000000000 as B
Compatibility:
Fully compatible with v1.2.16
No configuration changes required
Strongly recommended update for all users
First boot after update may require longer initialization time (about 20 seconds)
Known Issues:
None

Version 1.2.16 *Beta Version - For first-time installation, please select Erase Flash 2025-03-03

System Storage Improvements:
Added automatic recovery for corrupted settings
Improved storage system reliability
Enhanced configuration backup and restore mechanisms
Redesigned flash partition layout for better storage efficiency
Increased application partition (app0) by 70% to 2.7MB
Expanded file system (spiffs) by 70% to 512KB
Memory Management Enhancements:
Optimized memory usage for better performance
Improved restart behavior with saved state information
Added memory defragmentation during startup
Added 128KB core dump partition for better debugging
Added 640KB reserved partition for future expansion
Cryptocurrency Display Fixes:
Fixed issue with cryptocurrency symbols not being saved after restart
Improved support for more cryptocurrency symbols
Enhanced cryptocurrency data loading process
WiFi Connection Stability:
Added automatic restart after successful WiFi configuration
Improved switching between configuration mode and normal operation
Enhanced WiFi connection monitoring and recovery
Added 5-minute timeout protection in configuration portal mode
Future Features Preparation:
Additional space for future Chinese font support
Expanded capacity for static resources and configuration files
Increased system configuration storage to 64KB
Installation Requirements:
Complete flash erase required before upgrading
USB connection required (OTA functionality removed)
Compatibility:
Fully compatible with version 1.2.15
All settings remain backward compatible
Backup of important configurations recommended
Recommended update for all users
Known Issues:
Some users reported boot failure due to device configuration loading issues and invalid memory access
Temporary solution: If device fails to boot, perform a complete flash erase and reinstall the firmware
Coming Soon:
Chinese font support
File system optimization
Enhanced display capabilities

Version 1.2.14 *For first-time installation, please select Erase Flash 2025-03-01

New Features:
Added LED brightness control in configuration portal
Implemented three brightness levels: Low (10%), Medium (50%), High (100%)
Improved power efficiency with customizable brightness settings
Configuration Improvements:
Added Device Options section to configuration interface
Added persistence for LED brightness preferences
Compatibility:
Compatible with all previous versions
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
More device configuration options
Enhanced power management features
Improved battery life optimizations

Version 1.2.13 *For first-time installation, please select Erase Flash 2025-03-02

New Features:
Added support for custom cryptocurrency data sources
Added ability to select different API providers in configuration portal
Implemented automatic fallback to default data source if custom source fails
WiFi Setup Improvements:
Fixed issue where the device would unexpectedly exit WiFi setup mode
Prevented error messages during WiFi configuration
Enhanced WiFi setup stability for a smoother configuration experience
Fixed LED indicator behavior during WiFi setup process
Compatibility:
Compatible with all previous versions
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Improved WiFi configuration experience
Enhanced network stability features
More visual feedback during setup process

Version 1.2.12 *For first-time installation, please select Erase Flash 2025-02-28

AP Mode Stability Improvements:
Fixed WiFi configuration screen from exiting unexpectedly when setting up your connection
Improved user experience during WiFi setup process
Device Info Interface Improvements:
Fixed Device Info screen from automatically switching to clock display
Prevented white screen issues when viewing Device Info
Fixed display issues when returning from Device Info to cryptocurrency price screen
Changed LED light effects in Time and Device Info screens for a cleaner visual experience
Compatibility:
Compatible with previous version
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Improved interface transitions
Optimized display refresh experience
More personalized Device Info display options

Version 1.2.11 *For first-time installation, please select Erase Flash 2025-02-27

Configuration Portal Improvements:
Fixed Sync to Device button not re-enabling after editing cryptocurrency list
Improved button response when modifying cryptocurrency lists
Enhanced overall user experience with clearer status indicators
Compatibility:
Compatible with previous version
No configuration changes required
Recommended update for all users
Known Issues:
None

Version 1.2.10 *For first-time installation, please select Erase Flash 2025-02-17

Time Configuration Improvements:
Fixed occasional time synchronization failures
Added better timezone validation
Enhanced user feedback during time sync process
Added automatic page refresh after successful time sync
Compatibility:
Compatible with previous version
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Enhanced configuration portal experience
Improved user interface responsiveness
More detailed synchronization status feedback

Version 1.2.9 *For first-time installation, please select Erase Flash 2025-02-06

Display Improvements:
Optimized Bitcoin price display for better readability
Updated on-screen messages for better clarity
Web Portal Enhancements:
Improved configuration page layout and content
Enhanced user instructions and guidance
Optimized text descriptions throughout interface
Compatibility:
Compatible with previous version
No configuration changes required
Known Issues:
None

Version 1.2.8 *For first-time installation, please select Erase Flash 2025-02-05

Stability Improvements:
Enhanced system monitoring for better reliability
Improved LED effects stability
Added state saving for LED and cryptocurrency settings
Bug Fixes:
Fixed LED effect transition issues
Improved error handling in various situations
Fixed state saving issues
Fixed memory issues for smoother performance
Compatibility:
Compatible with previous version
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Further performance optimizations
Enhanced LED effect transitions
Improved efficiency

Version 1.2.7 *For first-time installation, please select Erase Flash 2025-02-04

System Stability Improvements:
Added monitoring for LED operations
Fixed issues with LED effects
Improved resource management for better performance
Memory Optimizations:
Enhanced system stability under heavy use
Improved memory handling for longer uptime
Added proactive resource management
Compatibility:
Compatible with previous versions
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Further performance improvements
Enhanced monitoring features
Advanced resource management

Version 1.2.6 *For first-time installation, please select Erase Flash 2025-02-03

Memory Management Optimization:
Improved system stability during extended use
Enhanced performance under continuous operation
Reduced chances of unexpected restarts
System Stability:
Better memory management for smoother experience
Optimized stability under heavy load
Compatibility:
Compatible with previous versions
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Further performance optimizations
Enhanced monitoring features
Advanced resource management

Version 1.2.5 2025-02-02

System Stability Improvements:
Added automatic recovery for network connection failures
Implemented smart restart after multiple connection issues
Added state preservation after restart
Improved error handling for network problems
Display Enhancements:
Increased percentage display precision to 2 decimal places
Improved formatting consistency for large numbers
Better handling of special value cases
Compatibility:
All existing features maintained
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Enhanced network stability
More detailed error reporting
Advanced recovery options

Version 1.2.4 2025-02-01

Performance Improvements:
Optimized network connection handling
Reduced memory usage
Improved system stability
Memory Enhancements:
Approximately 10% increase in available memory
Enhanced system stability
Compatibility:
All existing features supported
No configuration changes required
Recommended update for all users
Known Issues:
None
Coming Soon:
Further performance optimizations
Connection management improvements
Additional performance features

Version 1.2.3 2025-01-28

Memory and Network Optimization Update
Network Improvements:
Faster and more reliable network connections
Reduced connection timeouts
Better handling of connection failures
Memory Management:
Added regular system cleanup
Improved overall system stability
Enhanced resource management
Performance Improvements:
Reduced memory usage by approximately 20%
Faster connection establishment
Better stability during extended operation
Notes:
This update focuses on optimizing performance and stability
No changes to core functionality or user interface
Compatible with all existing configurations
No configuration changes needed

Version 1.2.2 2025-01-25

New Features:
Added comprehensive system logging for better troubleshooting
Implemented storage space monitoring
Improvements:
Enhanced error handling
Improved system reliability
Added storage usage warnings
Optimized log management
Bug Fixes:
Fixed file system issues
Resolved API request error handling
New Commands:
viewlog: Display current system logs
clearlog: Clear the system logs
Additional Notes:
System stability improvements
Memory usage optimizations
Better error tracking capabilities

Version 1.2.1 2025-01-22

Memory Management Optimization:
Improved network connection handling
Reduced memory usage during internet access
Lowered risks of connection-related issues
Display Enhancement:
Added smart refresh management
Implemented balanced refresh strategy
Bug Fixes:
Fixed display fading issue after extended use

Version 1.2.0 2025-01-20

Enhanced cryptocurrency support to include top 100 tokens by market cap
Updated default cryptocurrency list with top tokens:
Bitcoin (BTC), Ethereum (ETH), XRP (XRP), Tether (USDT),
Solana (SOL), BNB (BNB), Dogecoin (DOGE), USD Coin (USDC),
Cardano (ADA), Lido Staked ETH (STETH), TRON (TRX)
Improved cryptocurrency handling system
Optimized memory usage for better performance
Enhanced symbol display formatting

Version 1.1.0 2024-12-15

Initial release with basic cryptocurrency price display
Support for top 5 cryptocurrencies
Basic WiFi configuration interface