A library for displaying crypto asset prices on an LED matrix panel using a Raspberry Pi.
Requires:
- Adafruit 64x32 LED Matrix Panel
- Raspberry Pi Zero WH
- CoinMarketCap API Account
See the Howchoo guide for installation and configuration instructions:
https://howchoo.com/pi/raspberry-pi-cryptocurrency-ticker
You can customize the application by adding any of the following settings to your settings.env file in the root directory of this repo:
| Name | Default | Description |
|---|---|---|
| SYMBOLS | btc,eth | The asset symbols you want to track. |
| CURRENCY | usd | The currency used to show asset prices. CoinGecko currently supports "usd" and "eur", while CoinMarketCap supports only "usd". |
| API | coingecko | The API you want to use to fetch price data. Currently supported APIs are "coingecko" and "coinmarketcap". |
| REFRESH_RATE | 300 | How often to refresh price data, in seconds. |
| SLEEP | 3 | How long each asset price displays before rotating, in seconds. |
| CMC_API_KEY | The CoinMarketCap API key, required if you specified API=coinmarketcap. | |
| SANDBOX | Used for CoinMarketCap only. Set SANDBOX=false if you're developing and want to use the sandbox API. |
Example:
SYMBOLS=btc,eth,ltc,xrp
API=coingecko
Note: Some symbols are ambiguous. For example, uni currently corresponds to three different currencies in the CoinGecko API. To specify the
currency or token you want (with CoinGecko only), you can use the following:
SYMBOLS=btc,eth,uni:uniswap
The second value (uniswap) corresponds to the ID of the currency in the API. This is currently only supported for the CoinGecko API. You can find the CoinGecko ID for a token in the URL. E.g. https://www.coingecko.com/en/coins/uniswap.