Same core electronics as Pegasus โ you'll just buy less LED strip. Total: ~$27 (estimated, + shipping, PCB, printed parts).
The core circuit, PCB, and every electronic component below are exactly the same as the Pegasus build. The only differences: SG-1 uses its own 3D models and only 2 LED strips instead of 3 (no physical glyph ring on this model).
| Qty | Part | Description | Link | Cost |
|---|---|---|---|---|
| 1 | ESP32 controller | ESP32-WROOM-32D, 38 pin, USB-C | AliExpress | $3.13 |
| 1 | MP3 player | DFPlayer Mini | AliExpress | $2.18 |
| 2 | LED strips | WS2812B, IP30, 5V, 96 LED/m โ chevron + horizon only, ~0.83m total (see LED breakdown below) | AliExpress | ~$6.00* |
| 1 | Speaker | 8ฮฉ, 3W mini speaker | AliExpress | $3.75 |
| 2 | 9-pin socket headers | For the DFPlayer Mini | AliExpress | $1.61 |
| 2 | 18-pin socket headers | For the ESP32 | AliExpress | $1.89 |
| 3 | 330ฮฉ resistor | 1/4 watt | AliExpress | $1.44 |
| 1 | 1kฮฉ resistor | 1/4 watt | AliExpress | $1.47 |
| 1 | 1000ยตF 10V capacitor | Polarized electrolytic | AliExpress | $1.71 |
| 1 | 2-pin PC terminal block | 5.0mm pitch | AliExpress | $2.45 |
| 1 | JST-PH 2.0 | Board mount connector for the speaker | AliExpress | $1.51 |
| 1 | Micro SD card | Any size works, sound files are small (FAT32) | โ | โ |
| 1 | PCB | Same Pegasus board โ make your own, or order from JLCPCB using the Gerber files below | โ | โ |
| Electronics subtotal | ~$27.11* | |||
* The LED strip price is pro-rated from Pegasus's 3-strip listing (2/3 of $8.96) โ the exact cost depends on the reel length you pick when ordering.
No glyph ring on this model โ you only need two strips:
Total: 80 LEDs โ 0.83m minimum. Buy a bit more for margin and to route around the strip's factory solder joint.
/mp3/ at the root of the microSD card.Core electronics BOM put together by smaxsomeass โ thank you! Questions or missing a link? Ask on the Discord.