Category Archives: 1 kB challenge

1 kB Challenge: And the winners are…

The 1 kB Challenge deadline has come and gone. The judges have done their work, and we’re ready to announce the winners. Before you jump down to find out who won, I’d like to take a moment to say thanks to everyone who participated. We had some incredible entries. To say that judging was hard is quite an understatement. Even [Eben Upton], father of the Raspberry Pi got in on the action. He created a new helicopter game for the classic BBC Micro. Look for writeups on the winners and many of the other entries in the coming weeks.

Grand

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Character Generation in 144 Bytes

[Jaromir Sukuba]  has an awesome BrainF*ck interpreter project going. He’s handling the entire language in less than 1 kB of code. Sounds like a great entry in the 1 kB Challenge. The only problem is the user interface. The original design used a 4 line character based LCD. The HD44780 controller in these LCDs have their own character table ROM, which takes up more than 1 kB of space alone.

[Jaromir] could have submitted the BrainF*ck interpreter without the LCD, and probably would have done well in the contest. That wasn’t quite enough for him though. He knew he could …read more

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Bitbanging VGA Fits In under 1 kB

Don’t throw those old VGA monitors away, turn them into works of art with [danjovic] and VGA Blinking Lights. This circuit uses a PIC16F688 to generate VGA video. Not just a random spray of monochrome dots either. VGA Blinking Lights puts up an ever-changing display of 48 colored squares.

Originally created for the square inch contest, VGA Blinking Lights could hide behind a quarter. [Danjovic] dusted his project off and entered it in The 1 kB Challenge. The code is written in PIC assembly. The final hex used to generate the squares clocks in at 471 words. Since the PIC …read more

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Assembly Required: Subroutine Calls and the 1K Challenge

The first computer I personally owned had 256 bytes of memory. Bytes. The processor in my mouse and keyboard both have more memory than that. Lots more. Granted, 256 bytes was a bit extreme, but even the embedded systems I was building as part of my job back then generally had a small fraction of the 64K bytes of memory they could address.

Some people are probably glad they don’t have to worry about things like that anymore. Me, I kind of miss it. It was often like a puzzle trying to squeeze ten more bytes out of an EPROM …read more

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The ESP: A New 1kB Contender Appears

The ESP8266 is officially checking into the Hackaday 1kB Challenge. Doing something meaningful in 1kB of compiled code is tricky; modern SDKs like the ones often used for ESP8266 compile even the simplest programs to nearly that size. If you want to use this hardware in your 1kB Challenge entry, I have a solution for you!

The ESP8266 now has a barebones build environment focused on minimizing code size, as little as 131 bytes to boot up and blink an LED. It also “supports” some new, insane clock rates (like 346 MHz) and crazy development cycle speeds. The WiFi is  …read more

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Step Up to the 1 kB Challenge

1 kilobyte. Today it sounds like an infinitesimally small number. Computers come with tens of gigabytes of ram, and multiple terabytes of storage space. You can buy a Linux computer with 1 gig of RAM and secondary storage as big as the SD card you throw at it. Even microcontrollers have stepped up their game, with megabytes of flash often available for program storage.

Rapidly growing memory and storage are a great testament to technology marching forward to the beat of Moore’s law. But, we should be careful not to forget the techniques of past hackers who didn’t have so …read more

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