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Bertha main

Hackuarium·bioreactor·pcb/main/Bertha_main.kicad_pcb

Bertha main PCB layout, top view — open source AVR/Arduino board by Hackuarium
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About the Bertha main PCB

Bertha main is an open source AVR/Arduino PCB design by Hackuarium, published on GitHub. It is a 2-layer board measuring 100 × 87 mm, with 155 components from 56 distinct parts.

Its main chip is the ATMEGA32U4-AU, from the AVR/Arduino family. Other key parts include the SST26VF064B-104V, DRV8811, DS18B20, ACT4088 and HX711. By type, the board carries 52 resistors, 38 capacitors, 21 diodes, 14 jumpers, 12 connectors and 8 transistors.

From the project

´´´ Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bus 001 Device 006: ID 047f:0115 Plantronics, Inc. Voyager Legend Bus 001 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120 Bus 001 Device 002: ID 046d:c011 Logitec

´´´ Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bus 001 Device 006: ID 047f:0115 Plantronics, Inc. Voyager Legend Bus 001 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120 Bus 001 Device 002: ID 046d:c011 Logitech, Inc. Optical MouseMan Bus 001 Device 007: ID 1781:0c9f Multiple Vendors USBtiny Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ´´´

Main components on the Bertha main

SST26VF064B-104VDRV8811DS18B20ATMEGA32U4-AUACT4088HX711

Bertha main bill of materials (BOM)

155 components, 56 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SST26VF064B-104V
IC1
1
DRV8811
IC2
1
DS18B20
U1
1
ATMEGA32U4-AU
U2
1
ACT4088
U3
1
HX711
U4
6
ZXMS6004
Q1, Q2, Q5, Q6, Q7, Q8
1
IPB80N03S4L-03
Q3
1
TRANSISTOR_PNPMMBT4403
Q4
1
MINI-USB-SCHIELD-32005-201
X1
1
Crystal
Y1
2
RJ12
J1, J4
1
Conn_Coaxial_Power
J2
1
Conn_02x03_Odd_Even
J3
2
AudioJack3_SwitchTR
J5, J12
1
SJ
J6
2
Conn_01x01
J7, J8
3
SJ
J9, J10, J11
1
Test 3.3V
JP1
1
Test 12V
JP2
Show 36 more
QtyPartRefs
1
IO1
JP3
1
IO2
JP4
1
M05PTH
JP5
1
M02PTH
JP6
4
JP4E
JP7, JP10, JP11, JP12
1
IO3
JP8
3
IO4
JP9, JP13, JP14
1
JUMPER-PAD-2-NC_BY_TRACE
SJ1
4
MBR0520LT1G
D1, D2, D3, D12
3
YELLOW
D4, D5, D7
3
GREEN
D6, D11, D13
4
BLUE
D8, D9, D18, D19
7
RED
D10, D14, D15, D16, D17, D20, D21
1
4.7u
L1
6
10u
C1, C3, C4, C13, C17, C21
22
100n
C2, C5, C6, C7, C8, C11, C15, C16 +14
2
22p
C9, C10
1
22n
C12
1
22u
C14
3
220n
C22, C23, C26
1
100u
C25
2
1n
C30, C31
21
10k
R1, R2, R10, R15, R17, R20, R21, R22 +13
2
22
R3, R4
5
100
R5, R8, R19, R32, R33
3
4.7k
R6, R12, R50
9
1k
R7, R9, R11, R13, R14, R16, R23, R26 +1
1
1M
R18
1
49.9k
R24
1
16.23k
R25
1
20k
R30
1
8.2k
R31
1
3.3k
R41
2
0.1
R43, R44
3
47k
R45, R46, R48
1
180
R47

Bertha main design files

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

Bertha main: common questions

What microcontroller does the Bertha main use?

The Bertha main is built around the ATMEGA32U4-AU, from the AVR/Arduino family.

How big is the Bertha main PCB?

The Bertha main measures 100 × 87 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bertha main?

155 components, from 56 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 Bertha main design files?

From the Hackuarium/bioreactor 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 Bertha main design in my own project?

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

Can I test firmware for the Bertha main 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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