HardLabs

Left main

Scaniox·headphones·electronics/left_main/left_main.kicad_pcb

Left main PCB layout, top view — open source Microchip SAM board by Scaniox

About the Left main PCB

Left main is an open source Microchip SAM PCB design by Scaniox, published on GitHub. It is a 4-layer board measuring 45 × 51 mm, with 69 components from 26 distinct parts.

Its main chip is the BM83, from the Microchip SAM family. Other key parts include the AS3435-EQFM, ATSAMD21G18_QFN, MCP73831T-2ACI/OT, SPX3819-3.3 and MAX17048G+T10. By type, the board carries 31 capacitors, 21 resistors, 10 ICs, 3 connectors, 2 diodes and 1 crystal.

It belongs with the audio designs in this gallery.

Main components on the Left main

AS3435-EQFMBM83ATSAMD21G18_QFNMCP73831T-2ACI/OTSPX3819-3.3MAX17048G+T10AP2127K-1.8AP22814AW5

Left main bill of materials (BOM)

69 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
AS3435-EQFM
IC1, IC2
1
BM83
U1
1
ATSAMD21G18_QFN
U2
1
MCP73831T-2ACI/OT
U3
1
SPX3819-3.3
U4
1
MAX17048G+T10
U5
1
AP2127K-1.8
U6
2
AP22814AW5
U7, U8
1
32.768KHZ
32.768KHz
Y1
1
connectors_board
J1
1
FB_Filters
J23
1
FF_Filters
J24
1
reset_button
SW2
1
RED
D1
1
MBR120
D2
19
10UF
10uF
C1, C6, C7, C8, C9, C10, C11, C12 +11
7
1UF
1uF
C2, C3, C17, C54, C75, C76, C77
2
22PF
22pF
C4, C5
2
470NF
470nF
C14, C43
1
0.1UF
0.1uF
C78
Show 6 more
QtyPartRefs
9
2.2K
2.2k
R1, R8, R9, R10, R11, R43, R47, R49 +1
3
100K
100k
R2, R3, R5
1
6.8K
R4
6
10K
10k
R6, R7, R42, R44, R74, R75
1
200
R72
1
68K
68k
R73

Left main design files

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

Left main: common questions

What microcontroller does the Left main use?

The Left main is built around the BM83, from the Microchip SAM family.

How big is the Left main PCB?

The Left main measures 45 × 51 mm, has 4 copper layers and is 0.799999 mm thick.

How many components are on the Left main?

69 components, from 26 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 Left main design files?

From the Scaniox/headphones 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 Left main design in my own project?

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

Can I test firmware for the Left main without the hardware?

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

More boards in headphones

Similar boards