Part ID | Description | Value | Source | Link |
Main Board | Pi-Stomp Circuit board | Version 1.0.2 | TFS | |
Reg | Audio buffer supply regulator | AMS1117-3.3 | Amazon/DigiKey | |
R1, R2 | MIDI Resistors | 220 Ohm 1/4W | Mouser | https://www.mouser.com/ProductDetail/TE-Connectivity-Neohm/LR0204F220R?qs=%2Fha2pyFaduj70gdpyvFU3ecRVtTMomx0hXJHGZH%252BFgNm4ivu31wd8A%3D%3D |
R3, R4, R6, R7, R8 (NOT R5!) | Encoder & Footswitch pullup resistors | 33k 1/6W | Mouser | https://www.mouser.com/ProductDetail/Yageo/CFR-12JR-52-33K?qs=%2Fha2pyFaduicYmUoDqcqU7D9uIURgJBQwNsry7m3GblN7%2FayQ0o6PJAK%252BBweSPSQ |
R5,12,13,14 | Current limit (Bundles shipped in 2020 should use 390 ohm for R13) | 33 Ohm 1/6W | Mouser | https://www.mouser.com/ProductDetail/Yageo/CFR-12JR-52-33R?qs=%2Fha2pyFaduicYmUoDqcqU7D9uIURgJBQDGm7rfYRuwKMNaAQrH7R7kpZ5yNBB9Of |
R9, R10, R11 | Footswitch series resistor | 1k 1/4W | Mouser | https://www.mouser.com/ProductDetail/KOA-Speer/MFS1-4DCT52R1001F?qs=%2Fha2pyFaduj7RnmAuHPVMuRpJYf2TaE%252BgtFXAT5sVmkUFO%252Bn808ptQ%3D%3D |
R15, R16, R17, R18 | Buffer biasing | 2M 1/6W | Mouser | https://www.mouser.com/ProductDetail/603-MFR-12FTF52-2M |
D1 | MIDI Diode | 1N4148 | Mouser | https://www.mouser.com/ProductDetail/ON-Semiconductor-Fairchild/1N4148?qs=sGAEpiMZZMtoHjESLttvkoBU6cp6%252BZs9oaGbBohzXiI%3D |
C1-5 | Footswitch debounce and buffer input caps | 0.1uF / 25v Film | Mouser | https://www.mouser.com/ProductDetail/WIMA/MKS2C031001A00MC00?qs=sGAEpiMZZMv1cc3ydrPrF7l45uRd9dVhNfY7Wl9Nn4A%3D |
C6 | Supply Filter Cap | 220uF / 25v Electrolytic | Mouser | https://www.mouser.com/ProductDetail/Nichicon/UFW1E221MPD?qs=sGAEpiMZZMtZ1n0r9vR22e0BBN1kF1oiDCEpu3IqvL8%3D |
C7 | Buffer supply filter cap | 10uF / 25v Oscon | Mouser | https://www.mouser.com/ProductDetail/80-A758BG106M1EDAE70 |
C8, C9 | Buffer supply bypass caps | 0.1uF / 25v Ceramic | Mouser | https://www.mouser.com/ProductDetail/594-K104Z15Y5VE5TL2 |
Fuse | Resettable Fuse (looks like a capacitor) | 0ZRG0120FF1E | Mouser | https://www.mouser.com/ProductDetail/530-0ZRG0120FF1E |
Q1, Q2 | Relay driver transistor N-Chan MOSFET | 2N7000 | Mouser | https://www.mouser.com/ProductDetail/ON-Semiconductor/2N7000?qs=FOlmdCx%252BAA2o%2FKZOTk%2F3hg%3D%3D |
S1, S3 | 8-pin IC socket | | Mouser/Amazon | |
S2 | 16-pin IC socket | | Mouser/Amazon | |
U1 | DIN Midi darlington isolator (8-pin) (Only required for DIN MIDI) | 6N138 | Mouser | https://www.mouser.com/ProductDetail/Lite-On/6N138?qs=sGAEpiMZZMtd3yBnp8bAgJVeHfvx%252B1RWBVbqVNDa5yU%3D |
U2 | ADC for analog controls (16-pin) | MCP3008 | Mouser | https://www.mouser.com/ProductDetail/Microchip-Technology/MCP3008-I-P?qs=sGAEpiMZZMvTvDTV69d2Qm2vjLepl4EnaMdqVThrZKg%3D |
U3 | Buffer Opamp (8-pin) | MCP6292-E/P | Mouser | https://www.mouser.com/ProductDetail/579-MCP6292-E-P |
Rly1, Rly2 | Bypass Relays DPDT | TQ2-L2-3V | Mouser | https://www.mouser.com/ProductDetail/769-TQ2-L2-3V |
H1, H2 | Audio board I/O Header | 3-pin female | Mouser | https://www.mouser.com/ProductDetail/200-SLW10301TS |
H3 | Audio board GPIO Header - PREINSTALLED | 2×20 short female | N/A | |
H4, H5 | Main board audio I/O Header | 3-pin male | Mouser | https://www.mouser.com/ProductDetail/?qs=d9fIA1aNikRAvd6m1950OA%3D%3D |
H6, H9 | Main board Audio & LCD Header | 2×20-pin male | Mouser | https://www.mouser.com/ProductDetail/SparkFun/PRT-14275?qs=YCa%2FAAYMW01SLG%2FRsDUFug%3D%3D |
H7 | Pi Header | 2×20 tall female | Mouser | https://www.mouser.com/ProductDetail/Adafruit/2222?qs=sGAEpiMZZMu%252BmKbOcEVhFQfi8wYXkauJQr%252BpDv1VP6mm5DxBQT7C7A%3D%3D |
H8 | Footswitch/LED header | 2×6 Male 90 degree | Mouser | https://www.mouser.com/ProductDetail/Molex/90122-0126?qs=sGAEpiMZZMs%252BGHln7q6pm8NDWwBzqQCN%2Fy9%2F%2F175q3w%3D |
H10 | Power Header | 2-pin male molex | TFS | |
P1 | Volume Pot | 10k dual-gang audio taper | Mouser | https://www.mouser.com/ProductDetail/688-RK09L12D0A1T |
P2 | Tweak Pot | 10k linear taper | Mouser | https://www.mouser.com/ProductDetail/688-RK09L1140A2U |
Enc1-2 | Rotary Encoder | 12 detent quadrature | Mouser | https://www.mouser.com/ProductDetail/652-PEC11R4315FS0012 |
J1 | TRS Jack for Expression Pedal | 3.5mm (1/8“) | Mouser | https://www.mouser.com/ProductDetail/490-SJ1-3534NG |
J2 | Midi Jack | 5-pin | Mouser | https://www.mouser.com/ProductDetail/Adafruit/1134?qs=%2Fha2pyFadujqK9AZ8Eg%2FcT0SQyM4nKeC519ky%2FLRS8k%3D |
J3-6 | Input/Ouput Jacks | 1/4” Mono | Mouser | https://www.mouser.com/ProductDetail/550-12202 |
J7 | Power Jack (DC barrel) | 6.3/2.35mm (not std 9v jack) | Mouser | https://www.mouser.com/ProductDetail/693-4840.221 |
SW4 | Power Switch (SPST with lugs) | Round Rocker | Mouser | https://www.mouser.com/ProductDetail/612-RR111C1121 |
SW1-3 | Footswitches | SPST momentary NO | GPP | https://guitarpedalparts.com/products/spst-momentary-soft-touch-foot-switch |
W1-3 | Footswitch Wire (made from 4 female/female jumpers) | 2-conductor w/ female header | | |
W4 | Power connector/wire | 2-conductor w/ Molex | TFS | |
Tubing | Heat Shrink Tubing | 4mm diameter | | |
LED1-3 | Footsw LED rings (color assumes corresponding resistor) | White/Green/Blue | Smallbear | https://guitarpedalparts.com/products/12mm-led-ring-white |
Audio Board | Audio Injector Zero board | | Amazon | https://www.amazon.com/Audio-Injector-Zero-sound-Raspberry/dp/B075V1VNDD/ref=sr_1_3?crid=2U5Y1YMQG0F81&keywords=audio+injector+zero&qid=1643746466&sprefix=audio%2Caps%2C2755&sr=8-3 |
LCD | Pimoroni GFX Hat | | Mouser | https://www.mouser.com/ProductDetail/Pimoroni/PIM400?qs=%2Fha2pyFadujCVEaY%2FXmJjFfeHWxI0cpOfcW7Lkk%252B1X0%3D |
Pi | Raspberry Pi Model 3 A+ | | Mouser | https://www.mouser.com/ProductDetail/Raspberry-Pi/RPI3-MODAP?qs=sGAEpiMZZMspCjQQiuQ1fFTDrDpp2YD1MLfuWZRzWHn0HIOY0Khvtg%3D%3D |
HW1-4 | Nylon screw | M2.5 | TFS | |
HW5, 6, 7 | Nylon standoff for Audio Board & LCD | M2.5, 8mm tall | TFS | |
HW8, 9 | Nylon standoff (female on one end, male thread on other) | M2.5, 10mm with male thread | TFS | |
HW10 | Nylon standoff for Pi | M2.5, 10mm tall | TFS | |
HW11 | Nylon washer for Pi | M2.5, 1mm thick | TFS | |
Disk | Micro SD Card | 8+GB, Class 10 preferred | TFS | |
Enclosure | Drilled 1590DD | | TFS | |
K1, K2 | Volume and Tweak Knobs | With Pointer | TFS/GPP | https://guitarpedalparts.com/collections/knobs/products/small-pointer-knob-black |
K3, K4 | Encoder Knobs | Plain | TFS/GPP | https://guitarpedalparts.com/collections/1-4-round-shaft-knobs/products/small-pointer-knob-black-no-indicator |
PS | Power Supply 5v/2A | 2.5×5.5 center positive | Mouser | https://www.mouser.com/ProductDetail/675-TE10A0503C01 (US blades) For IEC receptacle use: https://www.mouser.com/ProductDetail/Condor-SL-Power/TE10A0503F01?qs=sGAEpiMZZMvasLKgtn5bIV5CeZWKG5kBy9JNu5qyTa63Z7bOZ8SZiQ%3D%3D |