Posts with «8x8» label

Matrix and Joystick

For the original tutorial, please visit: https://arduinobasics.blogspot.com

 
 

Project Description

In this project, we will use a little joystick to move a pixel around an 8x8 LED matrix. The joystick has a built-in button, such that when you press down onto the joystick, the colour of the pixel will change from red to blue to green. This is a very simple project, however, controlling the matrix adds a certain level of complexity. You will need to understand binary notation and bit-shifting techniques to grasp the concept of this tutorial.

All of the parts used in this project can be obtained from digitspace.com

 
 
 
 

Libraries

The SPI library is required for this project. However, this library is built into the current version of the Arduino IDE. No additional download is required. Just make sure to include it at the top of the sketch.

 
 

Arduino Code

The Arduino IDE can be downloaded from the official Arduino website: here.
Copy and paste the following code into your Arduino IDE and upload it to the Arduino UNO.

 
 

Connections

 
 

Project Video

As you can see from the video above, the pixel changes colour when the button is pressed. The position of the pixel relates to the position of the joystick. The lag between the joystick movement and pixel movement is minimal, and very satisfying.

 
 

Conclusion

This was a very fun and satisfying project that showcases the interaction between a joystick and a 8x8 LED matrix with the help of an Arduino UNO. This project was sponsored by the kind people at digitspace. Without their sponsorship, this tutorial would not have been possible. Please visit their website for some nice deals on Arduino related products.

If you found this tutorial helpful, please consider supporting me by buying me a virtual coffee/beer.

$3.00 AUD only

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ScottC 09 Mar 07:41
8x8  arduino  ce  clk  fun  joystick  led  matrix  module  mosi  pixel  programming  spi  sw  tutorial  uno  x  y  

Insert Coin (Cell) To Play LedCade

In this era of 4K UHD game console graphics and controllers packed full of buttons, triggers, and joysticks, it’s good to occasionally take a step back from the leading edge. Take a breath and remind ourselves that we don’t always need all those pixels and buttons to have some fun. The LedCade is a μ (micro) arcade game cabinet built by [bobricius] for just this kind of minimalist gaming.

Using just three buttons for input and an 8×8 LED matrix for output, the LedCade can nevertheless play ten different games representing classic genres of retro arcade gaming. And in a brilliant implementation of classic hardware hacking humor, a player starts their game by inserting not a monetary coin but a CR2032 coin cell battery.

Behind the screen is a piezo speaker for appropriately vintage game sounds, and an ATmega328 with Arduino code orchestrating the fun. [bobricius] is well practiced at integrating all of these components as a result of developing an earlier project, the single board game console. This time around, the printed circuit board goes beyond being the backbone, the PCB sheet is broken apart and reformed as the enclosure. With classic arcade cabinet proportions, at a far smaller scale.

If single player minimalist gaming isn’t your thing, check out this head-to-head gaming action on 8×8 LED arrays. Or if you prefer your minimalist gaming hardware to be paper-thin, put all the parts on a flexible circuit as the Arduflexboy does.

The HackadayPrize2019 is Sponsored by:

Hack a Day 06 May 19:31
2019 hackaday prize  8x8  arduino  arduino hacks  atmega328  game cabinet  games  led array  the hackaday prize