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This code is for the M5StickC Plus to display the current rates of Bitcoin (BTC), Ethereum (ETH), and Ripple (XRP) in Canadian dollars (CAD) using the CoinMarketCap API. The rates are updated every 5 minutes. Each rate is displayed for 10 seconds before switching to the next rate
This is simple LED BANNER constructed of Arduino Digispark and daisy-chained set of MAX7219 LED 8x8 matrix. Displays up to 500 characters long text message that is stored in non-volatile EEPROM memory of the chip and uploaded via USB from the PC ( Putty terminal ) - natively from USB or via FTDI232 USB-to-Serial converter