HardLabs

SimpleDigital

codeandrelax·DelayEffectPedal·SimpleDigital/SimpleDigital.kicad_pcb

SimpleDigital PCB layout, top view — open source PIC board by codeandrelax

About the SimpleDigital PCB

SimpleDigital is an open source PIC PCB design by codeandrelax, published on GitHub under the MIT license. It is a 2-layer board measuring 75 × 78 mm, with 127 components from 35 distinct parts.

Its main chip is the PIC16F72, from the PIC family. Other key parts include the 4066, MCP6002-xSN, LM317_TO-252, PT2399 and AMS1117-5.0. By type, the board carries 49 capacitors, 39 resistors, 17 connectors, 8 ICs, 7 diodes and 2 transistors.

It belongs with the audio designs in this gallery.

From the project

Firmware and PCB design of PT2399 IC based digital delay effect guitar pedal

This repository contains schematic, design files and firmware for digital delay guitar effect pedal based on PT2399. Effect pedal was inspired by The Time Manipulator effect pedal.

Electro Smash's pedal is built using popular Arduino ATMEGA328P-PU chip. Solution found in this repositroy doesn't use the same microcontroller. It uses PIC16F72.

Board is designed using surface mounted components (SMD).

SimpleDigital, from the project README
From the project README

Main components on the SimpleDigital

4066MCP6002-xSNLM317_TO-252PT2399AMS1117-5.0PIC16F72

SimpleDigital bill of materials (BOM)

127 components, 35 distinct parts.

QtyPartRefs
1
4066
U1
2
MCP6002-xSN
U2, U4
1
LM317_TO-252
U3
2
PT2399
U5, U7
1
AMS1117-5.0
U6
1
PIC16F72
U8
2
BC847
Q1, Q2
1
20MHz
Y1
6
Conn_01x01_Male
J1, J4, J5, J8, J16, J17
1
Power connector
J2
2
AudioJack3_Switch
J3, J6
2
Conn_01x05
J7, J15
4
Conn_01x06_Male
J9, J10, J11, J12
1
ProgrammingPins
J13
1
PUSH_STOMP
J14
1
Conn_01x02
Battery_9V1
2
10k
RV1, RV2
1
Rotary_Encoder_Switch
SW1
4
1N4001
D1, D2, D3, D7
1
LED
D4
Show 15 more
QtyPartRefs
2
LED_Dual_CAC
D5, D6
19
100nF
C1, C2, C3, C6, C14, C15, C16, C20 +11
19
47uF
C4, C5, C7, C8, C9, C11, C13, C17 +11
4
6.8nF
C10, C19, C29, C35
4
3.3nF
C12, C18, C31, C34
2
22pF
C45, C46
1
2.2uF
C48
5
10k
R1, R2, R37, R38, R39
1
1M
R3
1
5k
R4
24
4k7
R5, R6, R7, R11, R12, R13, R14, R15 +16
1
22k
R8
1
500
R9
1
3k6
R10
5
330R
R19, R28, R29, R33, R34

SimpleDigital design files

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

SimpleDigital: common questions

What microcontroller does the SimpleDigital use?

The SimpleDigital is built around the PIC16F72, from the PIC family.

How big is the SimpleDigital PCB?

The SimpleDigital measures 75 × 78 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SimpleDigital?

127 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the SimpleDigital design files?

From the codeandrelax/DelayEffectPedal repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the SimpleDigital design in my own project?

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

Can I test firmware for the SimpleDigital without the hardware?

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

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