Arduino project · Buttons and switches · Hard
LED Pong for Two Players
A light runs along five LEDs like a ball. Player 2 must press when the ball is on the far red LED. Player 1 must press when it comes back to the first red LED. A good hit gives you the point; a miss gives it to the other player.
What you will learn
- How timing and sequence make a game
- How two players can share one program
- How scores are kept in variables
How it works
The ball runs 1 to 5. When it is on LED 5 the program checks button 2: a press scores for player 2, otherwise player 1 scores. Then the ball returns and button 1 is checked on LED 1. Hold the button down in the simulator while the ball is on the end LED.
Try this next
- Make the ball faster each round.
- Stop at 5 points and play a tune.
- Show the score on two 7-segment digits.
The simulator program and explanation on this page are original. The idea follows a classic Arduino project that students have built for years.
Parts: sensors and actuators (tap to show or hide)
Try the inputs (virtual sensors)
Pins (you can change them)
| Part | Arduino pin (change it here) | How to wire it |
|---|
Every wire, one by one
Red rail = 5 V from the Arduino 5V pin. Black rail = GND. The coloured wires carry signals. Match the wire colours on the drawing to this list.
| # | Colour | From (part and leg) | To |
|---|
Steps run from top to bottom, then start again. While the simulation runs, the active step is highlighted in green.
Quantities come from the parts you added. The store links open a search for that item on Robu.in, Amazon.in and ThinkRobotics, so you always see what is in stock today. Check the model, voltage and price before you order.
| # | Item | Qty | Search term | Buy / compare |
|---|
The PDF has the circuit sketch, pin table, every wire, sequence, full code, the parts list with store links, do’s and don’ts for each part, and the safety notes. The project file lets you come back and keep editing.
In the real world
A table-top ping-pong game
The light is the ball. Each player presses at the right moment to hit it back.
Tip: use the gold tab at the bottom of the circuit drawing to pull the real-world view up over the Arduino board. Your parts stay visible above it, so you can press a button and watch the real scene react.
- LEDs = the ball travelling
- Two buttons = the two players