This retro-inspired LED matrix box displays crucial Bitcoin information like real-time prices, remaining supply, block reward halving, and more on your desktop. You can also customize it to show any other data of your choice. Below is a step-by-step guide to building your own Bitcoin tracking device.
Project Overview
The Bitcoin Bar combines:
- Raspberry Pi single-board computer
- LED matrix display for visual output
- Custom wooden enclosure
- Real-time cryptocurrency data tracking
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Components Required
Hardware
- Raspberry Pi 3B (or newer)
- LED matrix display (8×8 or larger)
- 10mm white LED diode
- 100 ohm resistor
- 5V USB power adapter
- Soldering iron and solder
- 5mm MDF board
- 5mm acrylic sheet
- Wood glue
- Acrylic paint
Software
- Python 3.x
- Requests library
- Beautiful Soup 4
- Luma.LED_matrix library
Circuit Design
The project uses SPI (Serial Peripheral Interface) to connect the LED matrix to the Raspberry Pi:
| Raspberry Pi Pin | LED Matrix Pin |
|---|---|
| 5V | VCC |
| GND | GND |
| GPIO 10 (MOSI) | DIN |
| GPIO 8 (SPI CE0) | CS |
| GPIO 11 (SPI CLK) | CLK |
Software Setup
Dependencies Installation
Python Libraries:
pip install requests beautifulsoup4 luma.led_matrixDownload Project Code:
git clone https://github.com/jonathanrjpereira/Bitcoin-Bar
Configuration
The Bitcoin Bar can display 19 different real-time data parameters including:
- Current BTC price
- Market capitalization
- Circulating supply
- Block reward halving countdown
- Hash rate
- Difficulty adjustment
Customize the display sequence by modifying the bcbar.py file.
Enclosure Construction
Laser Cutting Parts
- Cut all MDF components using provided CAD files
Create slots for:
- LED matrix
- Acrylic diffuser
- Power cable access
Assembly Steps
- Paint the MDF enclosure with acrylic paint
- Glue acrylic diffuser into front panel slot
- Mount LED matrix flush with front panel
- Apply custom Bitcoin decal to diffuser
LED Wiring
- Solder 10mm LED with current-limiting resistor
- Connect to Raspberry Pi's 3.3V power
- Position LED to evenly illuminate diffuser
Final Assembly
- Mount Raspberry Pi to base plate
- Connect all electronic components
- Route power cable through back panel
- Secure all panels with locking mechanism
👉 Explore more DIY cryptocurrency projects
FAQ Section
How often does the display update?
The tracker updates data hourly to comply with API rate limits while maintaining current information.
Can I customize the displayed information?
Yes! You can modify the Python script to show any combination of the 19 available parameters or add new data sources.
What power supply is recommended?
A standard 5V/2.5A USB power adapter provides sufficient power for both the Raspberry Pi and LED components.
Is soldering required?
Basic soldering is needed for the LED connections, but you can use screw terminals or breadboards for prototyping before permanent installation.
Project Enhancements
For improved functionality:
- Add touch controls for parameter selection
- Implement wireless connectivity
- Create mobile app companion for remote monitoring
- Integrate multiple cryptocurrency tracking
The Bitcoin Bar makes an excellent desktop companion for cryptocurrency enthusiasts, combining retro aesthetics with modern blockchain technology.
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