HardLabs

SCOUT2

oskitone·scout_2_prototype·kicad/scout/scout.kicad_pcb

SCOUT2 PCB layout, top view — open source AVR/Arduino board by oskitone

About the SCOUT2 PCB

SCOUT2 is an open source AVR/Arduino PCB design by oskitone, published on GitHub. It is a 2-layer board measuring 221.4 × 52.3 mm, with 88 components from 24 distinct parts.

Its main chip is the ATMEGA328P-PU, from the AVR/Arduino family. Other key parts include the LM386 and 6N138. By type, the board carries 27 diodes, 26 switches, 14 resistors, 8 capacitors, 4 connectors and 3 ICs.

It belongs with the audio designs in this gallery.

From the project

This is a prototype around a PCB I sent off to fab in March 2022... that I'm slowly bringing back to life. I'm kind of using it as a springboard for the next thing, whatever that is and whenever it happens!

This is a prototype around a PCB I sent off to fab in March 2022... that I'm slowly bringing back to life. I'm kind of using it as a springboard for the next thing, whatever that is and whenever it happens!

Very much work-in-progress. License will be MIT like other kits.

- Kicad project - OpenSCAD for scaffolding and keys models - STLs for 3D-printing

- Easy to solder. Only through-hole parts, even if it limits functionality. - Easy to change. Code can be edited with free software and cheap hardware. - Easy to play. No hidden menus, secret key combos, or overloading. One control per one…

SCOUT2, from the project README
From the project README

Main components on the SCOUT2

ATMEGA328P-PULM3866N138

SCOUT2 bill of materials (BOM)

88 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-PU
ATmega328P-PU
U1
1
LM386
U2
1
6N138
U3
1
16.00MHZ
16.00MHz
Y1
1
AUDIOJACK2_SWITCHT
AudioJack2_SwitchT
J1
1
CONN_01X06_MALE
Conn_01x06_Male
J2
2
DIN5
J3, J4
1
4.5V
4.5v
BT1
1
Speaker
LS1
1
10k Log
RV1
2
10K
10k
RV2, RV3
25
SPST
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +17
1
SW_SPST
SW26
25
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +17
1
LED_CRGB
D26
1
D
D27
2
220UF
220uF
C1, C6
4
.1uF
C2, C4, C5, C7
1
1UF
1uF
C3
1
.05uF
C9
Show 4 more
QtyPartRefs
6
220
R1, R2, R3, R10, R11, R12
6
10K
R4, R5, R6, R7, R9, R13
1
1m
R8
1
10
R14

SCOUT2 design files

The KiCad project lives in the oskitone/scout_2_prototype repository on GitHub; these links point at the commit this page was built from.

SCOUT2: common questions

What microcontroller does the SCOUT2 use?

The SCOUT2 is built around the ATMEGA328P-PU, from the AVR/Arduino family.

How big is the SCOUT2 PCB?

The SCOUT2 measures 221.4 × 52.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SCOUT2?

88 components, from 24 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 SCOUT2 design files?

From the oskitone/scout_2_prototype 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 SCOUT2 design in my own project?

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

Can I test firmware for the SCOUT2 without the hardware?

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

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