StompBox
About the StompBox PCB
StompBox is an open source PCB design by profdc9, published on GitHub. It is a 2-layer board measuring 207 × 52 mm, with 37 components from 12 distinct parts.
By type, the board carries 14 resistors, 6 connectors, 4 switches, 4 diodes, 3 capacitors and 2 jumpers.
It belongs with the audio designs in this gallery.
From the project
A guitar effects processor based on the Raspberry Pi Pico
This is a guitar effects processor based on the Raspberry Pi Pico. A video of some of the effects is at
https://www.youtube.com/watch?v=15d9mEu2koQ
1. Noise Gate 2. Delay 3. Room (set up specific echoes at particular delays) 4. Combine (mix together the signals from several effects) 5. 2nd order Bandpass filter 6. 2nd order Lowpass filter 7. 2nd order Highpass filter 8. 2nd order Allpass filter 9. Tremolo (amplitude modulated by a low frequency oscillator) 10. Vibrato (pitch modulated by a low frequency oscillator) 11. Wah (bandpass filter with center frequency controlled by an external…
StompBox bill of materials (BOM)
37 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | AudioJack2_Dual_Ground_Switch | PJ-3240-35mm-stereo | J1, J4, J6 |
| 1 | Barrel_Jack_Switch | BarrelJack_Horizontal | J2 |
| 1 | Conn_01x03 | TerminalBlock_bornier-3_P5.08mm | J3 |
| 1 | BATT | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | IP | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | TESTVOLTS | PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 4 | 10k | Potentiometer_Bourns_3296W_Vertical | RV1, RV2, RV3, RV4 |
| 4 | ThreeWayStompBox | ThreeWayStompBoxSwitch | SW1, SW2, SW3, SW4 |
| 4 | LED | LED_D5.0mm | D1, D2, D3, D4 |
| 3 | 100 nF | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3 |
| 13 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R4, R5, R6, R7, R8, R9 +5 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
StompBox design files
The KiCad project lives in the profdc9/GuitarPico repository on GitHub; these links point at the commit this page was built from.
- LayoutStompBox/StompBox.kicad_pcb
- SchematicStompBox/StompBox.kicad_sch
StompBox: common questions
How big is the StompBox PCB?
The StompBox measures 207 × 52 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the StompBox?
37 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the StompBox design files?
From the profdc9/GuitarPico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the StompBox design in my own project?
The repository has no license, so all rights stay with profdc9. Use it as a reference, and ask the author before reusing the design.
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