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What can you do with an LED strip? Today’s project will show you:
☞ Game 1: Reaction Time Challenge
At the start of the game, all LEDs on the strip will flash in rainbow mode for 2-8 seconds. When the rainbow pulse ends, the strip will turn white, and players on both sides need to press the button as quickly as possible. The first to press scores, and half of the LED strip turns green. If both press at the same time, the LED strip turns yellow, and no points are awarded or deducted. If someone presses too early, the round ends, and that person will lose a point.
Finally, record each person’s scores. The difficulty of the game can be modified, such as setting different flashing times, etc.
When the white LED moves to the end of the strip, players send a single LED back and forth by pressing their respective buttons. Good timing and quick pressing are essential for successfully hitting the ball. If no one presses after reaching the bottom, a point is lost. Since the speed of the LED increases after each successful hit, the game becomes more exciting as it progresses.
When the match begins, the entire strip pulses red – yellow – green, then two white lights turn on in the middle of the strip. Each side needs to press the button as quickly as possible to “pull” these two lights to the ends of the strip. The closer the two LEDs get to the ends, the more they will turn green.
☞ Game 4: Mini Golf for One
Charge a light dot to move it different distances along the strip. Hitting the green section of the strip means you have made it in the hole.
How do you like these games? Are you interested? There are similar projects on Kickstarter that are crowdfunding, and products are expected to be available by the end of the year.
Here are the required hardware and materials:
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Arduino Nano R3
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1 meter WS2812 LED strip (60 LEDs)
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128×32 SSD1306 OLED display
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1 x 220Ω resistor
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2 black buttons, 3 red buttons, 1 power button
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1 x 18650 3.7V 2000mAh lithium battery
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1 lithium battery boost/charge/control circuit
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1.5m USB data cable
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Other materials: wires, plastic casing, translucent plastic tube, screws, nuts, etc.
Many of the materials above are very common; you can check if you have any waste washing machine or dishwasher drain pipes at home.
The complete Arduino code can be downloaded from GitHub:
Link: https://github.com/johan-m-o/LEDTennis
Author: Johan
The original plan was to use 2 lithium batteries, but due to the size of the casing, only one battery could be used for power.Fortunately, the LED brightness can be adjusted, and the entire LED strip does not light up for long periods, so the power consumption is not particularly high; one is enough.
In a two-player game, each person holds one controller, as shown in the red box below. The Arduino control board and Player 1’s control button are in one casing, while the USB head, battery, power control board, and Player 2’s button are in the same casing.
The “Mode” button can pause the game, and it can also end the game and return to the main screen on the displayed screen. The game mode can be selected using the left and right buttons. Additionally, the LED brightness can also be adjusted using the left and right buttons from 1 (dim) to 10 (bright), with a default brightness level of 3.
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