Playing music by waving your hands over a rangefinder for pitch and pressing capacitive sense pads for key.
- Program the Arduino Uno
- To use it, the Uno needs some sort of power, 9V or 5V or whatever.
- Press the 'reset' button. The red and green lights will blink.
- The switch normally sits in the 'OFF' position.
- Flip the switch to the RECORD position to play and record a tune.
- Move one hand vertically between 1 and about 10 inches above the rangefinder.
- Use the other hand to press the capacitive sense pads to choose a key.
- When you're done with a tune, flip the switch back to OFF.
- When you want to play back the tune, flip the switch to PLAYBACK.
- The tune will play once through.
- To play it again, flip the switch to OFF and then to PLAYBACK.
- To record a new tune, flip the switch to RECORD, which erases the old tune.
I've shared the boards at OSH Park. You can buy a set of three for $29.50.
| Refdes | Qty | Description | Digikey |
|---|---|---|---|
| J1 | 1 | CONN HEADER FEMALE .100" SNGL STR 8POS | 952-1823-ND |
| LED1 | 1 | LED RED DIFF 5MM ROUND T/H | 1125-1188-ND |
| LED2 | 1 | LED GRN DIFF 5MM ROUND T/H | 1125-1184-ND |
| R1,R2 | 2 | RES 220 OHM 1/4W 5% CF MINI | S220QCT-ND |
| R3,R4 | 2 | RES 10K OHM 1/4W 5% CF MINI | S10KQCT-ND |
| RV1 | 1 | POT 10K OHM 1/5W PLASTIC LINEAR | 987-1301-ND |
| SP1 | 1 | SPEAKER 8 OHM .25W 23MM ROUND | 458-1124-ND |
| SW1 | 1 | SWITCH TACTILE SPST-NO 0.05A 24V | SW400-ND |
| SW2 | 1 | SWITCH TOGGLE SPDT 5A 120V | EG2377-ND |
| U1 | 1 | CONN HEADER MALE .100" SNGL STR 40POS | S1012EC-40-ND |
The best way to place U1 is to buy one 40-position header is the cheapest option (about $0.50) and snap it apart into the sections you need.
| Refdes | Qty | Description | Adafruit |
|---|---|---|---|
| P1 | 1 | Maxbotix Ultrasonic Rangefinder LV-EZ1 | Product 172 |