HardLabs

QPCR-root

hisashin·qNinja·kicad/Ninja/batch08/root/qPCR-root.kicad_pcb

QPCR-root PCB layout, top view — open source Raspberry Pi board by hisashin

About the QPCR-root PCB

QPCR-root is an open source Raspberry Pi PCB design by hisashin, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 138.5 × 65.2 mm, with 85 components from 32 distinct parts.

Its main chip is the Raspberry_Pi_3A_Plus_wpi, from the Raspberry Pi family. Other key parts include the CJT1117-3.3, AP2210K-3.3TRG1, TL431DBZ and BD9D320EFJ-E2. By type, the board carries 26 capacitors, 19 resistors, 12 connectors, 8 ICs, 6 transistors and 3 diodes.

From the project

Open source Real-Time Quantitative PCR Implementation

QPCR-root, from the project README
From the project README

Main components on the QPCR-root

CJT1117-3.3AP2210K-3.3TRG1TL431DBZBD9D320EFJ-E2

QPCR-root bill of materials (BOM)

85 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CJT1117-3.3
U1
1
AP2210K-3.3TRG1
U2
5
TL431DBZ
U3, U4, U5, U6, U7
1
BD9D320EFJ-E2
U8
6
Q_NMOS_GSD
Q1, Q2, Q3, Q4, Q5, Q6
1
Raspberry_Pi_3A_Plus_wpi
J1
8
Conn_01x01_Male
J2, J3, J4, J5, J6, J7, J9, J10
1
Conn_01x20_Male
J12
1
Barrel_Jack_Switch
J13
1
Conn_01x02_Male
J14
1
Fuse
F1
5
Screw_Terminal_01x02
FAN1, HLID1, HLID2, HWELL1, HWELL2
1
RPI_LCD_TOUCH_7INCH
LCD1
1
Conn_01x02_Male
LCD1_POWER1
1
Conn_01x02_Male
LOCK1
1
SW_Reed
SW1
1
D_Schottky
D1
2
D
D2, D3
1
3.3uH(ALPS GLMC / TDK SPM6530)
L1
3
100uF
C1, C11, C12
Show 12 more
QtyPartRefs
5
4.7uF
C2, C10, C13, C14, C23
4
22uF
C3, C7, C25, C26
5
0.1uF
C4, C5, C8, C15, C24
3
0.01uF
C6, C21, C22
1
100pF
C9
5
10F2.7V
C16, C17, C18, C19, C20
4
150
R1, R2, R6, R7
7
47k
R3, R4, R5, R8, R9, R10, R19
1
10k
R11
1
8.2Ω 3W
R12
5
1k2W
R13, R14, R15, R16, R17
1
261k
R18

QPCR-root design files

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

QPCR-root: common questions

What microcontroller does the QPCR-root use?

The QPCR-root is built around the Raspberry_Pi_3A_Plus_wpi, from the Raspberry Pi family.

How big is the QPCR-root PCB?

The QPCR-root measures 138.5 × 65.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the QPCR-root?

85 components, from 32 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 QPCR-root design files?

From the hisashin/qNinja repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the QPCR-root design in my own project?

Yes, under the terms of its GPL-3.0 license, which hisashin chose for the repository.

Can I test firmware for the QPCR-root without the hardware?

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

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