HardLabs

Nordic aoa

davidlenfesty·nordic_aoa·hardware/nordic_tag/nordic_tag.kicad_pcb

Nordic aoa PCB layout, top view — open source STM32 board by davidlenfesty

About the Nordic aoa PCB

Nordic aoa is an open source STM32 PCB design by davidlenfesty, published on GitHub. It is a 2-layer board measuring 99.9 × 48.3 mm, with 38 components from 20 distinct parts.

Its main chip is the STM32F042F4Px, from the STM32 family. Other key parts include the AP2112K-3.3 and nRF52811-QCAA. By type, the board carries 14 capacitors, 8 resistors, 5 diodes, 3 ICs, 3 switches and 2 crystals.

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

From the project

Hardware and software for playing around with BLE direction finding.

This is where I'm putting hardware and software for playing around with BLE direction finding with the nRF52811.

This is partly for getting direction finding support into NimBLE, but that depends on the timeframe and if I get the hardware done before any commercial hardware shows up.

There will be two boards, the tag, and the locator. Both will be dev boards, with a USB debugging interface (CMSIS-DAP or dap42 or something), some broken out pins, and the antennas.

Main components on the Nordic aoa

AP2112K-3.3nRF52811-QCAASTM32F042F4Px

Nordic aoa bill of materials (BOM)

38 components, 20 distinct parts.

QtyPartRefs
1
AP2112K-3.3
U101
1
nRF52811-QCAA
U201
1
STM32F042F4Px
U301
1
32MHz
Y201
1
8MHz
Y301
1
USB_B_Micro
J101
1
Conn_01x08_Male
J102
3
SW_Push
SW201, SW301, SW302
5
LED
D201, D202, D301, D302, D303
1
3n9
L101
1
0p8
C101
1
4u7
C201
4
12p
C202, C204, C301, C302
3
100n
C203, C205, C209
1
1u
C206
1
100p
C207
1
NC
C208
2
0u1
C303, C304
3
10K
R201, R301, R302
5
1k
R202, R203, R303, R304, R305

Nordic aoa design files

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

Nordic aoa: common questions

What microcontroller does the Nordic aoa use?

The Nordic aoa is built around the STM32F042F4Px, from the STM32 family.

How big is the Nordic aoa PCB?

The Nordic aoa measures 99.9 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nordic aoa?

38 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Nordic aoa design files?

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

Can I use the Nordic aoa design in my own project?

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

Can I test firmware for the Nordic aoa without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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