If you wonder how Bitcoin ATM works, you are in luck. Bitcoin ATMs are created so that people can access the Bitcoin blockchain directly, and not have to use an exchange. Basically, a Bitcoin ATM is a computer that has some kind of data scanner, a connection to the internet, and the ability to accept and dispense cash.
Making a sale with a Bitcoin ATM is very simple. All you will have to do is send Bitcoin from your wallet to the address the ATM uses, and then wait for the transaction to be confirmed. The ATM will then dispense cash, and you are all set.
If you want to buy Bitcoin with cash, these machines are also a great fit. You will be able to put your cash into the ATM, and the machine will buy Bitcoin on your behalf, and send it to a wallet of your choice. You now own Bitcoin, and can do with it what you like.
The only downside to Bitcoin ATMs is that they tend to have limits on how much cash they will accept or dispense, and this could be a problem for some users. They also tend to be concentrated in North America and Europe, but this is changing as Bitcoin becomes more popular.