Matt Hughes| Quantity | Component name | |
| 1 | × | Arduino (tested with Uno) |
| 1 | × | 100Ω resistor |
| 1 | × | Speaker or piezo buzzer |
Arecibo message from an Arduino
A binary message beeper for the Arduino demonstrating the Arecibo message
A binary message beeper for the Arduino demonstrating the Arecibo message
| Quantity | Component name | |
| 1 | × | Arduino (tested with Uno) |
| 1 | × | 100Ω resistor |
| 1 | × | Speaker or piezo buzzer |