full_bill_of_materials

Full Bill of Materials for Pi Stomp

This is the BOM for circuit board version 1.0.2

For board version 1.0.1 (older) use this one: full_bill_of_materials_1.0.1

Maybe goes without saying, but please don't assemble just from this BoM. Use the full_build_instructions. At least use the zoomable photos for validation that each part is attached correctly.

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
  • full_bill_of_materials.txt
  • Last modified: 2022/02/01 20:18
  • by admin