Gravity Pong – a 4.5 meter high RGB LED game #piday #raspberrypi @Raspberry_Pi
Adafruit customer Ragnar wrote in to tell us about this great ball bouncing RGB-LED game – check out more here!
Gravity Pong is a 4.5 meter high ball bouncing RGB-LED game. It contains, among other things, 1792 individual controllable LEDs, that together can draw up to almost 108 Amps!
Continue reading to find out how we took this into account when we built this game.
The objective is to bounce a ball as high as possible by pressing the button as close to the bounce-line as possible. Each game contains 3 bounces. And the closer to the line you bounce the ball, the more speed upwards will it get!
The core of the installation is built using several steel pipes. Since it was going to be rather high it was essential that it was easy to both transport and assemble on site.
The pipes were covered with 8 APA102 LED strips, each with 56 pixels. And each pipe module is built as modular as possible, with it’s own umbilical Cord. Through this Cord we transfer both power and signal (4 wires). Each pipe section can at maximum use up to 8*56*60 mA = 27 A (@ 5V), so the cabling were scaled accordingly.
Another advantage with APA102 compared to the well known WS2812 is that they use a synchronous data transfer method, i.e. separate data and clock signals, robustness and speed FTW!
Several mechanisms for making it easier to thread the 4 umbilical cords through the centre cavities in the sections underneath were implemented. Among them a 3D-printed funnel!
To diffuse the LEDs we used regular acrylic piping covered with a semitransparent vinyl film. It looked great!
APA102 5050 RGB LED w/ Integrated Driver Chip – 10 Pack – APA102C: Make your own smart LED arrangement with the same integrated LED that is used in our new fancy DotStar strips. This tiny 5050 (5mm x 5mm) SMD LED is fairly easy to solder and is the most compact way possible to integrate multiple bright LEDs to a design. If you want to prototype with these, we recommend our 5050-size LED breakout PCBs, solder them on for a breadboard-friendly package. Read more.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.