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Ax gateway

richardeoin·ax·hw/pi/ax-gateway.kicad_pcb

Ax gateway PCB layout, top view — open source Raspberry Pi board by richardeoin
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About the Ax gateway PCB

Ax gateway is an open source Raspberry Pi PCB design by richardeoin, published on GitHub. It is a 2-layer board measuring 2 × 17 mm, with 92 components from 39 distinct parts.

Its main chip is the Raspberry_Pi_Conn, from the Raspberry Pi family. Other key parts include the TG-5006CJ, TPS73433 and AX5243. By type, the board carries 46 capacitors, 18 inductors, 10 diodes, 8 resistors, 4 ICs and 4 connectors.

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

From the project

This folder contains the schematic files for the ax-gateway header board.

This folder contains the schematic files for the ax-gateway header board.

This board supports one or two AX5243 radios, with a bi-directional antenna port for each radio. It has been tested with a Raspberry Pi 3 Model B.

The differential match can be populated for various frequencies, using the values found in the AX5243 datasheet. Usually this is 144MHz, 434MHz or 868MHz. Lext can be populated so that frequencies outside of 400-525MHz / 800-1050MHz can be used; usually this is 22nH for 140-154MHz.

Ax gateway, from the project README
From the project README

Main components on the Ax gateway

TG-5006CJTPS73433AX5243

Ax gateway bill of materials (BOM)

92 components, 39 distinct parts.

QtyPartRefs
1
TG-5006CJ
IC1
1
TPS73433
IC2
2
AX5243
IC3, IC4
1
Raspberry_Pi_Conn
P1
2
COAX
P2, P3
1
PAD
P4
2
Jumper_NO_Small
JP1, JP2
2
TVS_DIODE
D1, D2
1
LAN
D3
1
INTERNET
D4
1
DATA 0
D5
1
DATA 1
D6
1
DC 1
D7
2
SCHOTTKY
D8, D10
1
DC 0
D9
2
68nH
L1, L2
4
18nH
L3, L4, L7, L8
2
47nH
L5, L6
2
27nH
L9, L11
2
12nH
L10, L12
Show 19 more
QtyPartRefs
2
0Ω
L13, L14
2
2.2µH
L15, L16
2
22nH
L17, L18
2
1µF
C1, C2
1
10nF
C3
3
4.7µF
C4, C9, C10
8
1nF
C5, C6, C7, C8, C39, C42, C43, C46
8
100nF
C11, C12, C13, C14, C16, C17, C41, C45
2
39pF
C15, C18
4
4.3pF
C19, C20, C23, C24
2
DNP
C21, C22
4
2.7pF
C25, C26, C32, C34
2
8.2pF
C27, C28
2
3.6pF
C29, C30
2
5.1pF
C31, C33
4
NOSTUFF
C35, C36, C37, C38
2
100pF
C40, C44
2
1kΩ
R1, R2
6
330Ω
R3, R4, R5, R6, R7, R8

Ax gateway design files

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

Ax gateway: common questions

What microcontroller does the Ax gateway use?

The Ax gateway is built around the Raspberry_Pi_Conn, from the Raspberry Pi family.

How big is the Ax gateway PCB?

The Ax gateway measures 2 × 17 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ax gateway?

92 components, from 39 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ax gateway design files?

From the richardeoin/ax repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Ax gateway design in my own project?

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

Can I test firmware for the Ax gateway 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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