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GuitarPedalSTM32

GuitarML·GuitarPedalSTM32·hardware/STM32H7B0_GuitarPedal/STM32H7_GuitarPedal.kicad_pcb

GuitarPedalSTM32 PCB layout, top view — open source STM32 board by GuitarML
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About the GuitarPedalSTM32 PCB

GuitarPedalSTM32 is an open source STM32 PCB design by GuitarML, published on GitHub under the MIT license. It is a 4-layer board measuring 60 × 95 mm, with 101 components from 47 distinct parts.

Its main chip is the STM32H7B0VBT6, from the STM32 family. Other key parts include the LD1117S50CTR, MCP6002T-I/SN, OPA1652AIDR, CS4270 and TLV76733QWDRBXQ1. By type, the board carries 44 capacitors, 23 resistors, 8 ICs, 4 connectors, 3 diodes and 3 inductors.

It belongs with the audio designs in this gallery.

From the project

Guitar pedal using a stm32h7 microcontroller programmed with CubeIDE (PCB and Firmware)

This is a custom STM32 digital guitar pedal with firmware programmed in c++ using STM32CubeIDE. It uses a STM32H7B0 Arm Cortex-M7 microcontroller running at 280MHz with 1.4MB SRAM and 128kb of flash. The PCB is designed using KiCad, and the JLCpcb Gerbers are included for easy ordering. This pedal is capable of reverbs, delays, granular, filtering, amp and cabsims, and anything else you can think up.

GuitarPedalSTM32, from the project README
From the project README

Main components on the GuitarPedalSTM32

LD1117S50CTRMCP6002T-I/SNOPA1652AIDRCS4270TLV76733QWDRBXQ1CPC1018NSTM32H7B0VBT6

GuitarPedalSTM32 bill of materials (BOM)

101 components, 47 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LD1117S50CTR
LD1117S50TR_SOT223
U1
2
MCP6002T-I/SN
MCP6002
U2, U6
1
OPA1652AIDR
OPA1652AID
U3
1
CS4270
U4
1
TLV76733QWDRBXQ1
TLV76733QWDRBxQ1
U7
1
CPC1018N
U8
1
STM32H7B0VBT6
STM32H7B0VBTx
U9
1
SS8050
Q1
1
Crystal_GND24 16Mhz
Y1
1
NMJ6HCD2
AUDIO_IN_TRS
J1
1
NMJ6HCD2
AUDIO_OUT_TRS
J2
1
DC-005-20A
Barrel_Jack_Switch
J3
1
NMJ6HCD2
EXPRESSION JACK
J5
1
Foot_Switch_1
FS1
1
Foot_Switch_2
FS2
1
20021121-00010C4LF
M05X2MINIJTAG
JP1
1
G6K-2
K1
6
10K
POT1, POT2, POT3, POT4, POT5, POT6
2
SW_SPDT
SW3, SW4
1
LED_1
LED1
Show 27 more
QtyPartRefs
1
LED_2
LED2
1
1N5817W
1N5817
D1
1
1N4007W
1N4007
D2
1
ASMB-MTB0-0A3A2
D3
2
600Ω@100MHz
FB1, FB2
1
200Ω@100MHz
FB3
7
2.2U
2.2u
C1, C2, C15, C49, C50, C55, C56
7
10UF
C3, C17, C21, C27, C34, C37, C41
15
100N
100n
C5, C7, C8, C9, C10, C12, C13, C14 +7
2
1u
C6, C11
5
100NF
C26, C31, C32, C39, C40
1
3U3
3u3
C28
1
47UF
C36
2
10P
10p
C43, C44
2
100u 35V
C45, C46
1
220P
220p
C52
1
2N7
C53
3
1K
R1, R22, R25
1
10K
10k
R2
2
2.2K
2.2k
R5, R6
1
470R
R7
6
2M
R10, R13, R17, R18, R23, R33
2
100K
R11, R14
2
1K5
1k5
R15, R26
3
5K1
5k1
R16, R27, R28
1
100R
R21
2
2K
R31, R32

GuitarPedalSTM32 design files

The KiCad project lives in the GuitarML/GuitarPedalSTM32 repository on GitHub; these links point at the commit this page was built from.

GuitarPedalSTM32: common questions

What microcontroller does the GuitarPedalSTM32 use?

The GuitarPedalSTM32 is built around the STM32H7B0VBT6, from the STM32 family.

How big is the GuitarPedalSTM32 PCB?

The GuitarPedalSTM32 measures 60 × 95 mm, has 4 copper layers and is 1.6268 mm thick.

How many components are on the GuitarPedalSTM32?

101 components, from 47 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the GuitarPedalSTM32 design files?

From the GuitarML/GuitarPedalSTM32 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the GuitarPedalSTM32 design in my own project?

Yes, under the terms of its MIT license, which GuitarML chose for the repository.

Can I test firmware for the GuitarPedalSTM32 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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