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MicroRek

CalPolySpaceSystems·circuitCAD·Projects/MiniRek/MicroRek.kicad_pcb

MicroRek PCB layout, top view — open source Microchip SAM board by CalPolySpaceSystems
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About the MicroRek PCB

MicroRek is an open source Microchip SAM PCB design by CalPolySpaceSystems, published on GitHub. It is a 2-layer board measuring 71.1 × 34.9 mm, with 57 components from 37 distinct parts.

Its main chip is the ATSAMD21G18_QFN, from the Microchip SAM family. Other key parts include the FXPQ3115BV, LSM9DS1, nRF24L01P, SST26VF064B and TPS630250RNC. By type, the board carries 29 capacitors, 9 resistors, 6 ICs, 4 diodes, 4 inductors and 2 crystals.

From the project

Circuit board designs and resources for Cal Poly Space Systems' avionics

Main components on the MicroRek

ATSAMD21G18_QFNFXPQ3115BVLSM9DS1nRF24L01PSST26VF064BTPS630250RNC

MicroRek bill of materials (BOM)

57 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATSAMD21G18_QFN
U1
1
FXPQ3115BV
U3
1
LSM9DS1
U4
1
nRF24L01P
U5
1
SST26VF064B
U7
1
TPS630250RNC
U8
1
Crystal
Y1
1
ABS07-32.768KHZ-9-T
Y2
1
Conn_01x02
J1
1
Conn_01x02
J3
1
SW_Push
SW1
2
LED
D1, D4
1
D_Schottky
D2
1
D_Schottky
D3
1
12nH
L1
1
2.3nH
L2
1
7.9nH
L3
1
1uH
L4
3
0.1u
C1, C2, C4
1
1u
C3
Show 17 more
QtyPartRefs
7
0.1uF
C5, C6, C9, C10, C14, C20, C35
2
10nF
C7, C11
3
10uF
C8, C16, C29
1
33nF
C12
1
1nF
C13
2
10p
C15, C17
1
4.7pF
C19
2
10pF
C22, C25
1
2.2nF
C24
1
15pF
C28
1
1.5pF
C30
2
22uF
C36, C38
1
4.7n
C39
1
22k
R1
6
4.7k
R2, R3, R8, R10, R11, R12
1
1M
R6
1
100k
R13

MicroRek design files

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

MicroRek: common questions

What microcontroller does the MicroRek use?

The MicroRek is built around the ATSAMD21G18_QFN, from the Microchip SAM family.

How big is the MicroRek PCB?

The MicroRek measures 71.1 × 34.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MicroRek?

57 components, from 37 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 MicroRek design files?

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

Can I use the MicroRek design in my own project?

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

Can I test firmware for the MicroRek 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.

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