What is Ask?
Many exchanges and apps, including Crypto.com’s App, support crypto-fiat pairs, most often US dollars. A trading pair tells you which currencies you can exchange for one another. For example, BTC/USD allows you to buy bitcoin with US dollars, or sell bitcoin for US dollars. There are also crypto-to-crypto pairs, such as BTC/USDT, ETH/BTC, and so on. Below are some examples of the trading pairs our exchange supports. Order book crypto An order book, according to Investopedia, refers to “an electronic list of buy and sell orders for a specific security or financial instrument organized by price level”. This electronic list shows the number of shares or crypto tokens are being bid or offered at each price point. The lists have become more important by the day in the crypto market given the recent volatility as they improve the market transparency and enable traders to identify excellent entry or exit price points.
Crypto order books
If you wire a 0.5 Watt 8 Ohm speaker between digital Pin 3 of your Arduino Nano and ground, Talkie will produce some voice output through it OK. However, it will be very quiet. Therefore I also added a very low cost small audio amplifier. This connects to the Arduino with 3 wires and has 2 screw terminals to attach your speaker to. This makes the sound easier to hear. Buy orders A limit order book (LOB), also known as the central limit order book (CLOB) is an electronic bookkeeping system maintained by an exchange, which shows all buy and sell limit orders that come in for a given instrument — stocks, futures, bonds, cryptocurrencies, etc. The limit order book trading strategy is simply trading based on the order flow.
The bottom line
You could now stop at this stage and run the software using the Arduino Serial View Window to see the outputs. Secure and audited smart contracts Crypto exchanges all you to trade multiple trading pairs. For example, aside from being to trade BTC/USD, you can also trade other cryptos/fiat pairs like ETH/USD, BNB/USD, ADA/USD, or even crypto/crypto pairs like ETH/BTC or ADA/ETH.