The Bomem DA3 is a sort of Fourier rework spectrometer used for measuring numerous spectral information and [Usagi Electric] has one. On his quest to know it he runs down various rabbit holes, together with studying about numerous barcode codecs, doing a teardown of the Telxon LS-201 barcode scanner, and exploring how lasers work. That’s proper: lasers!
His purpose for wanting on the Telxon LS-201 barcode scanner is that it has the identical sort of helium-neon laser as his Bomem DA3 makes use of. Since he’s studying about barcode scanners he thinks it’s prudent to study barcode codecs too, and he has a dialogue with our very personal Adam Fabio about such issues, together with the UPC-A commonplace barcodes.
It’s enjoyable seeing the mainboard of the Telxon LS-201 sporting the acquainted 555 timer, LM393 comparator, and three op-amps: 5532, LF347, and TL062; no discrete logic in sight! In case you’re interested by barcode tech you would possibly wish to learn Barcodes Enter The Matrix In 2027 and Previous Barcode Scanner Motherboards Dwell Once more. The actual Hackaday article talked about within the video is that this one: The Eloquence Of The Barcode.
Additionally, within the curiosity of public well being and security, ensure you’re sporting laser safety glasses in the event you’re working with laser know-how. Even low energy lasers can do harm to your eyes. Laser emissions will be invisible to the human eye and also you don’t have nerves that inform you when your eyeballs are being roasted, so take care on the market!
