HardLabs

Mcguitarpedal

frsaba·mcguitarpedal·pcb/mcguitarpedal/mcguitarpedal.kicad_pcb

Mcguitarpedal PCB layout, top view — open source NXP board by frsaba
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About the Mcguitarpedal PCB

Mcguitarpedal is an open source NXP PCB design by frsaba, published on GitHub. It is a 2-layer board measuring 123 × 113.5 mm, with 113 components from 62 distinct parts.

Its main chip is the TEENSY4.1, from the NXP family. Other key parts include the Teensy Audio Board, LM4562, STPDWN-3P-5V, AMS1117-3.3 and 74HCT595. By type, the board carries 42 resistors, 17 capacitors, 14 diodes, 12 connectors, 12 test points and 7 ICs.

It belongs with the audio and displays & leds designs in this gallery.

From the project

Teensy 4.1 custom built guitar effects pedal. Uses the Teensy Audio Library and LVGL. Custom PCB design and 3D printed enclosure

- C++ with PlatformIO - Teensy Audio Library - UI made with LVGL - 5 implemented effects (more to come): - Chorus - Flanger - Tremolo - Delay - Reverb

Each effect can be separately toggled on/off and mixed with the dry/wet parameter. The effect parameters can be adjusted to tune the sound.

Mcguitarpedal, from the project README
From the project README

Main components on the Mcguitarpedal

TEENSY4.1Teensy Audio BoardLM4562STPDWN-3P-5VAMS1117-3.374HCT59574HC148

Mcguitarpedal bill of materials (BOM)

113 components, 62 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TEENSY4.1
Teensy4.1
U1
1
Teensy Audio Board
U2
1
LM4562
U3
1
STPDWN-3P-5V
U4
1
AMS1117-3.3
U5
1
74HCT595
U6
1
74HC148
U7
1
2N3904
Q1
1
BC416
Q2
1
OUT
J1
1
EXP
J2
1
IN
J3
1
PWR
J4
1
PWR_IN
J5
1
PREAMP_HEADERS
J6
1
ILI9488 Module
J7
1
POT_HP_VOLUME_10K
POT_HP_VOLUME_10k
J8
1
ENC1
J9
1
ENC2
J10
1
ENC3
J11
Show 42 more
QtyPartRefs
1
BTN_MTX
J12
1
Fuse 1A
F1
1
500
RG1
1
SW_PWR
SW1
1
SW_BYPASS
SW2
1
SW_TUNER
SW3
1
SW_PRESET
SW4
1
LINE_LEVEL
SW5
1
TP_SIGNAL
TP1
1
SHIFT_CLK
TP2
1
TP_LED_DATA
TP3
1
TP_STORE_CLK
TP4
1
TP_MOSI
TP5
1
TP_SCLK
TP6
1
TP_MISO
TP7
5
TestPoint
TP8, TP9, TP10, TP11, TP12
3
D_Schottky
D1, D2, D3
1
LED_TUNER
D4
1
LED_9V
D5
1
LED_5V
D6
1
LED_3V3
D7
1
LED_BYPASS
D8
1
LED_STATUS
D9
5
LED
D10, D11, D12, D13, D14
4
22U
22u
C1, C3, C5, C6
5
100N
100n
C2, C4, C8, C9, C17
1
100N
100n
C7
3
470N
470n
C10, C12, C16
1
10µ
C11
1
220N
220n
C13
1
2.2N
2.2n
C14
1
4.7N
4.7n
C15
1
500
R1
10
330
R2, R4, R6, R7, R8, R9, R10, R11 +2
2
1k
R3, R37
1
220
R5
15
10K
10k
R13, R14, R15, R18, R19, R20, R21, R22 +7
1
100
R17
3
50
R27, R28, R29
2
1M
R33, R34
6
100K
100k
R35, R36, R38, R39, R41, R42
1
2.2K
2.2k
R40

Mcguitarpedal design files

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

Mcguitarpedal: common questions

What microcontroller does the Mcguitarpedal use?

The Mcguitarpedal is built around the TEENSY4.1, from the NXP family.

How big is the Mcguitarpedal PCB?

The Mcguitarpedal measures 123 × 113.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mcguitarpedal?

113 components, from 62 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 Mcguitarpedal design files?

From the frsaba/mcguitarpedal 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 Mcguitarpedal design in my own project?

The repository has no license, so all rights stay with frsaba. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Mcguitarpedal without the hardware?

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

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