Here is one of the Bitcoin and LiteCoin Ticker that i made.

The exchange rate refresh every 30 seconds

Features

1. Wifi enabled for data update.
2. Very low power 3W.
3. 2x16 LCD additional data can be displayed. 20x4 can be also added.
4. Has buzzer for huge change in exchange rate.
5. As of now both BTC and LTC are displayed. any coin rate can be displayed

any new ideas are welcome .

Product Image here
 https://www.potatopi.com/litecoin-ticker/
 https://www.potatopi.com/bitcoin-ticker/