HardLabs

Salp board

aeiou642·sensOrb·Schematics & PCB/sensOrb/salp_board.kicad_pcb

Salp board layout, top view — open source AVR/Arduino board by aeiou642
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About the Salp board

Salp board is an open source AVR/Arduino PCB design by aeiou642, published on GitHub. It is a 4-layer board measuring 64.8 × 58.7 mm, with 57 components from 40 distinct parts.

Its main chip is the ATtiny3226-S, from the AVR/Arduino family. Other key parts include the LD1117S33TR, PN5321A3HN/C106_55, TP4057 and DW01A. By type, the board carries 23 capacitors, 11 resistors, 6 connectors, 5 ICs, 5 diodes and 2 transistors.

From the project

Initial commit

PlatformIO Notes: - Install PIO via. VSCode and follow standard installation instructions - In the platformio.ini file, change the following; - uploadport to whatever port the Serial to UART for the UPDI is connected to - monitorport to whatever port the Serial to UART the actual serial monitor is connected to

Main components on the Salp board

LD1117S33TRPN5321A3HN/C106_55ATtiny3226-STP4057DW01A

Salp board bill of materials (BOM)

57 components, 40 distinct parts.

QtyPartRefs
1
LD1117S33TR
U1
1
PN5321A3HN/C106_55
U2
1
ATtiny3226-S
U3
1
TP4057
U4
1
DW01A
U6
2
IRLML6402
Q1, Q2
1
27.12 MHz
Y2
2
ATTINY3226
J1, J8
1
Conn_01x03
J4
1
POWER_JUMPER
J9
1
POWER
J10
1
~
J12
1
Battery
BT1
1
SW_DPDT_x2
SW2
1
BZS55C5V1
D1
2
LED
D2, D3
1
BAT54CW
D4
1
APFA3010
D5
2
560nH
L1, L2
2
200p
C1, C2
Show 20 more
QtyPartRefs
2
22p
C3, C4
2
220p
C5, C6
2
.1u
C7, C10
2
100 nF
C8, C14
1
4.7u
C9
1
1n
C11
2
22pF
C12, C13
2
10uF
C15, C22
1
10nF
C16
1
10 uF
C17
3
100nF
C18, C20, C21
1
1uF
C19
1
0.1 uF
C23
1
1.6K
R1
4
1k
R2, R4, R9, R10
1
4.7k
R3
1
3.9k
R5
2
10
R6, R7
1
68
R8
1
100
R11

Salp board design files

The KiCad project lives in the aeiou642/sensOrb repository on GitHub; these links point at the commit this page was built from.

Salp board: common questions

What microcontroller does the Salp board use?

The Salp board is built around the ATtiny3226-S, from the AVR/Arduino family.

How big is the Salp board?

The Salp board measures 64.8 × 58.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Salp board?

57 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the Salp board design files?

From the aeiou642/sensOrb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Salp board design in my own project?

The repository has no license, so all rights stay with aeiou642. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Salp board 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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