Barcode
Unicode barcodes
For some reason I decided to see if Code 39 barcodes were renderable with Unicode block drawing characters. The answer is yes. This should be scannable if it is all on a single line:
│ │█ █│││█ █ │█││█ │█ █││ │█ █││ │█ ││█│││█│ █ █│█ ││││█ █ ││ │█ █│
Source code: github.com/osresearch/barcode
Datamatrix
This one doesn't seem to work, possibly due to spacing..
▌▙▚▚▘▙▌▚▚<br/>
▙▚▄▖▚▟▘▘▙<br/>
█▄▝█▟▘▗▌▗<br/>
▙░▄▞▗▙▀▖▄<br/>
▌▄▞▄▌▄▛▌▄<br/>
▌▙▐▌█▙▝▌▙<br/>
▙▀▛▙▌▚█▚▚<br/>
▌▞▙▙░▀▟▄▙<br/>
█▄▙▟▄▄▄▟▄<br/>
Last update:
November 8, 2020