Planet Arduino

These days, it’s easy enough to play games on the go. If you have a smart phone, you are pretty much set. That doesn’t mean you can’t still have fun designing and building your own portable gaming system, though.

[randrews] did just that. He started out by purchasing a small memory LCD display from Adafruit. The screen he chose is low power as far as screens go, so it would be a good fit for this project. After testing the screen with a quick demo program, it was time to start designing the circuit board.

[randrews] used Eagle to design the circuit. He hand routed all of the traces to avoid any weird issues that the auto router can sometimes cause. He made an efficient use of the space on the board by mounting the screen over top of the ATMega chip and the other supporting components. The screen is designed to plug in and out of the socket, this way it can be removed to get to the chip. [randrews] needs to be able to reach the chip in order to reprogram it for different games.

Once the board design was finished, [randrews] used his Shapeoko CNC mill to cut it out of a copper clad board. He warns that you need to be careful doing this, since breathing fiberglass dust is detrimental to living a long and healthy life. Once the board was milled out, [randrews] used a small Dremel drill press to drill all of the holes.

The final piece of the puzzle was to figure out the power situation. [randrews] designed a second smaller PCB for this. The power board holds two 3V coin cell batteries. The Arduino expects 5V, so [randrews] had to use a voltage regulator. This power board also contains the power switch for the whole system.

The power board was milled and populated. Then it was time to do some measurements. [randrews] measured the current draw and calculates that he should be able to get around 15 hours of play time using the two 3V coin cell batteries. Not bad considering the size.

[via Reddit]

Filed under: Arduino Hacks

Everyone loves video games. But it can be difficult to enjoy certain games if you are injured or disabled and don't have the manual dexterity needed to execute fast button combos. Fortunately, we can use an Arduino to do it for us. The Arduino can send signals to the controller that simulate the buttons being pressed. This lets you pre-program commands that can be activated by a single button. This kind of mod could be used to help more gamers enjoy combo heavy games.

Read more on MAKE

It’s the project the Arduino Esplora seemingly was designed to create: a handheld video game. Mike Barela added a 1.8″ display from Adafruit, and adapted the code created by another maker named R0D0T. I was looking for a game that was more than the basics to show off the Esplora [...]

Read the full article on MAKE