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AR9271 eval

oresat·oresat-dxwifi-hardware·AR9271_eval/AR9271_eval/AR9271_eval/AR9271_eval.kicad_pcb

AR9271 eval PCB layout, top view — open source board by oresat
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About the AR9271 eval PCB

AR9271 eval is an open source PCB design by oresat, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 64 × 84 mm, with 135 components from 47 distinct parts.

Other key parts include the AR9271-AL1A, AT24C04CXHMT and LT3080EQPBF. By type, the board carries 53 capacitors, 37 resistors, 12 LEDs, 6 ICs, 6 test points and 5 inductors.

It belongs with the rf & radio and iot & wireless designs in this gallery.

From the project

OreSat hardware for high speed data communications using 2.4 GHz WiFi.

This is hardware for the satellite only; please see the other repos if you're looking for the OreSat Live Handheld Ground Station or the Mini-OreSat testing platform for high altitude balloons.

We intend to use "ordinary WiFi" (IEEE 802.11b) as a high speed satellite communication system. What is not ordinary is that we run the radio under the amateur radio rules and regulations (FCC Part 97) and thus can increase power levels and antenna gains necessary to make the link budget work.

Main components on the AR9271 eval

AR9271-AL1AAT24C04CXHMTLT3080EQPBF

AR9271 eval bill of materials (BOM)

135 components, 47 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AR9271-AL1A
U-ATHEROS-AR9271
U1
1
AT24C04CXHMT
AT24C04C-XHM-T
U2
4
LT3080EQPBF
U3, U4, U5, U6
1
ECS-400-10-36-CKY
ECS-400-10-36-CKY-TR
Y1
1
UJ2-MIBH2-4-SMT
UJ2-MIBH2-4-SMT-TR
J1
1
HTST-110-01-L-DV-P
HTST-110-01-XX-DV
J3
2
132134-15
J7, J8
4
STAND-OFFTIGHT
H1, H2, H3, H4
1
952-3308
JP1
1
952-3308
JP2
1
952-3308
JP3
1
952-3308
JP4
6
TPTP06R
TP2, TP3, TP4, TP5, TP6, TP7
12
LTST-C193KGKT-5A
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +4
1
SMP1321-079
SMP1321-079LF
D1
2
PGB1010603MR
D2, D3
2
LQP03TN1N8B02D
1.8nH
L1, L2
2
LQP03TN2N2B02D
2.2nH
L3, L4
1
BLM18PG221SH1D
L5
9
GCM31CR71C475KA37L
4.7uF
C1, C22, C24, C25, C46, C47, C49, C50 +1
Show 27 more
QtyPartRefs
15
CGA2B1X7R1C104K050BC
100n
C2, C3, C6, C26, C27, C28, C29, C30 +7
4
CC0402JRNPO9BN100
10p
C4, C5, C35, C36
1
UMK063CG2R2CTHF
2.2pF
C7
5
UMK063CG100DTHF
10.0pF
C8, C9, C15, C16, C20
4
UMK063CG020CTHF
2.0pF
C10, C11, C12, C13
2
UMK063CG010CTHF
1.0pF
C14, C19
2
UMK063CG1R5CT-F
1.5pF
C17, C18
1
UMK063CG101JT-F
100.0pF
C21
2
C0402C103K4RACAUTO
10nF
C23, C48
1
CGA2B2C0G1H101J050BA
100p
C37
2
C0402C102K5GACTU
1n
C38, C40
2
C0402C103K4RACAUTO
10n
C39, C44
3
CGA2B2C0G1H100D050BA
1u
C41, C42, C52
1
DNP
R1
2
ERJ-2GE0R00X
0
R2, R3
5
ERJ-2GEJ103X
10k
R4, R7, R10, R13, R14
2
ERJ-2GEJ103X
4.7k
R5, R6
1
ERJ-2RKF51R1X
51.1
R8
1
ERJ-2RKF6191X
6.19k
R9
12
ERJ-2GEJ511X
510
R11, R15, R16, R17, R18, R19, R20, R21 +4
1
ERJ-2GEJ330X
33
R12
1
ERJ-1GNF1001C
1.0k
R26
2
ERJ-2RKF3303X
330k
R27, R30
2
ERJ-2RKF1203X
120k
R28, R31
1
ERJ-2GEJ105X
1M
R29
4
ERJ-6GEY0R00V
0
R32, R33, R34, R35
2
DNP
R36, R37

AR9271 eval design files

The KiCad project lives in the oresat/oresat-dxwifi-hardware repository on GitHub; these links point at the commit this page was built from.

AR9271 eval: common questions

How big is the AR9271 eval PCB?

The AR9271 eval measures 64 × 84 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the AR9271 eval?

135 components, from 47 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 AR9271 eval design files?

From the oresat/oresat-dxwifi-hardware 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 AR9271 eval design in my own project?

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

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