A small plastic case with an OLED screen showing a side-scrolling game

Game & Light Brings Video Games To Your Keychain

If you’re old enough to remember the 1990s, you might recall the sheer variety of portable gaming platforms that were around in those days. There was of course the ubiquitous hand-held Game Boy, and if you preferred something larger you could buy a Sega Game Gear or an Atari Lynx. But you could also go smaller with tiny LCD games like Nintendo’s Game and Watch series, with some versions literally the size of a wristwatch.

With all of these having gone the way of the dodo, we’re happy to see that [grossofabian] kept the tiny game world alive by designing the Game & Light: a tiny hand-held games platform with an OLED screen. It’s small enough to attach to your keychain and comes with an LED to act as a mini flashlight. But of course the main feature is the included video game: currently it comes with LEDboy Adventures, a side-scrolling platformer similar to Google’s T-Rex Game. A USB port can be used to recharge the device as well as to upload new games.

The Game & Light is housed in a 3D printed case and powered by a lithium-ion capacitor that can store enough charge for around 40 minutes of play time. The CPU is an ATtiny402 eight-pin microcontroller with 4 kB of flash, which is just enough to store the entire LEDboy game. Although currently only one game is available, the system is fully programmable and open sourced, so anyone who feels up to the task can help develop new games for the platform.

If you like keychain-sized games, you’re in luck: we recently featured the solar-powered but otherwise similar RunTinyRun. A bit longer ago, creative hackers even managed to squeeze entire Game Boys into tiny packages.

Continue reading Game & Light Brings Video Games To Your Keychain”

How Tiny Can A Microcontroller Dev Board Be!

With innumerable microcontroller boards on the market it’s sure that there will be one for every conceivable application or user. Among them are some seriously tiny ones, but this wasn’t enough for [Alun Morris]. Wanting to see how small he could make an ATtiny board without a custom PCB, he took a SOIC-8 version of the popular minimalist processor and mated it to a 6mm by 8mm piece of 0.05″ prototyping board to create a device that is dwarfed by its connectors.

It’s an extremely simple circuit and hardly something that hasn’t been done before, but the value here is in the tricky soldering to make it rather than its novelty. The ATtiny402 and three passive SMD components are fitted on the smallest possible sliver of prototyping board to contain them, and the female headers and set of programming pins contribute far more to the volume of the device than the board itself. He also tried a side-on design with two smaller slivers of board before settling on the more conventional layout. The demonstration of the system in action seen in the video below the break is a magnetic flux detector, dwarfed by the 40-pin DIP Z80 it is sitting on.

A lot of boards claim to be tiny, but few are this small. This ESP32 is a more usual contender.

Continue reading “How Tiny Can A Microcontroller Dev Board Be!”