Using the QR code scanner you can easily safe and transfer data or you can use it as key for a door or maybe you want to use it to identify a ship
I made this a week ago and sadly for me, Megacrafter127 also made something a week ago this in fact: Punchcard Reader , something very similar to this. I didn't know about this, I didn't know about that. But we both had the same idea. Though I was inspired by the QR code from Mcdonalds while he was inspired by a punch card.
differences:
punch card: A small and compact reader for a small message (can be extended. It works well takes up a small amount of space but takes quite some time to read.
QR Code: The QR code reader scans 100 pixels in 5 seconds, it has 515,377,520,732,011,331,036,461,129,765,621,272,702,107,522,001 possibilities or 3^100 :D but of course, you won't be using the whole thing, most of the times you have to assign certain pixels to certain things, like every 4 pixels can be used to determine which letter a character will be in the Ascii system. The disadvantage for this reader is its size.
Unlike the punch card, the QR reader has a second layer, when placing no blocks, no signal will be put out, when placing a 1 block high pillar, it will be detected on the right side and-gate chip, when a pillar of 2 high is made, it will be detected on the left side and-gate chip. This adds a ton of possibilities.
I made this a week ago and sadly for me, Megacrafter127 also made something a week ago this in fact: Punchcard Reader , something very similar to this. I didn't know about this, I didn't know about that. But we both had the same idea. Though I was inspired by the QR code from Mcdonalds while he was inspired by a punch card.
differences:
punch card: A small and compact reader for a small message (can be extended. It works well takes up a small amount of space but takes quite some time to read.
QR Code: The QR code reader scans 100 pixels in 5 seconds, it has 515,377,520,732,011,331,036,461,129,765,621,272,702,107,522,001 possibilities or 3^100 :D but of course, you won't be using the whole thing, most of the times you have to assign certain pixels to certain things, like every 4 pixels can be used to determine which letter a character will be in the Ascii system. The disadvantage for this reader is its size.
Unlike the punch card, the QR reader has a second layer, when placing no blocks, no signal will be put out, when placing a 1 block high pillar, it will be detected on the right side and-gate chip, when a pillar of 2 high is made, it will be detected on the left side and-gate chip. This adds a ton of possibilities.
