New functions are added to point of sale with bitcoin that operates without an Internet connection

Bitmain launches new Bitcoin miner with liquid cooling system

Developer Ben Arc this week updated the point of sale that uses the Bitcoin (BTC) Lightning Network, with which payments can be made through the layer two solution of the protocol.

Last September, Arc had already announced the launch. It is a device synchronized, through the private key, to a Lightning (LN) server, where a QR code is generated, which is the equivalent of a payment invoice.

But this installment has two new features. According to precise In a video posted on Twitter, in addition to working with and without the internet, the point of sale now has an on-chain option (that is, on the main Bitcoin network), with which a new address or link can be generated for each payment, using an extended public key (xPub).

Advertising

New functions are added to point of sale with bitcoin that operates without an Internet connection

This, according to the developer, is useful “for large purchases.” Also, a QR code is included to mempool.space, so that you can check the payments once they have been executed.

Meanwhile, added a ATM option, which allows you to generate withdrawal links after entering a certain amount. As specified, this function uses the LNURL-withdraw protocol. Therefore, withdrawals can be made offline.

New functions are added to point of sale with bitcoin that operates without an Internet connection
Ben Arc developed a point of sale that works with bitcoin and the Lightning Network. / Source: Ben Arc/Twitter.

“This is great for stores in El Salvador that are working with bitcoin,” says the specialist, who clarifies that merchants can establish a “small margin” of profit for their businesses, using this point of sale.

See also  Bitcoin miners forced for the first time to operate only on solar energy

As reported in CriptoNoticias, the point is synchronized with the LNURL server, which allows generating non-static payment invoices and without being connected to the internet.

This means that, with the device, the merchant can enter the amount to receive, so that the payer scans the QR code from their LN compatible wallet and cancels their purchase.

Something that the developer highlights is that this device has the peculiarity that it can be built by anyone, in addition to being open source, so anyone can collaborate. There is no previous product, but it can be used and modified by anyone, in order to adapt to their needs.

Three versions of outlets

Ben Arc reported that his project can be run on multiple devices. These, as specified, can be purchased on the web.

The first, whose cost is eight United States dollars (USD), is the cheapest version. This is limited to a small board and a medium resolution screen, where it is shown the QR code that the buyer must scan to pay.

New functions are added to point of sale with bitcoin that operates without an Internet connection
The points of sale can be purchased on the web and modified to operate with LN. / Source: GitHub.

The following, at $15, is a bit more streamlined. The device is from the technology company Lilygo. It has a small screen and the device can be connected to a keyboard membrane or use the connection plate that is made precisely for a configurable point of sale and with offline Lightning Network support.

And the latest device, the M5Stack, is based on ESP32 and has a charging base. This has an average price of USD 70. Several tests have already been done with it and, according to Arc, it was operating in the famous bar Room77, located in Berlin, Germany, “and it worked very well”.

Leave a Comment

Your email address will not be published.