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NRF52811 USB LoRa

alvarop·chaac·hw/nrf5281x_usb_lora/nrf5281x_usb_lora.kicad_pcb

NRF52811 USB LoRa PCB layout, top view — open source Nordic nRF board by alvarop

About the NRF52811 USB LoRa PCB

NRF52811 USB LoRa is an open source Nordic nRF PCB design by alvarop, published on GitHub under the MIT license. It is a 2-layer board measuring 31 × 19 mm, with 34 components from 19 distinct parts.

Its main chip is the NRF52811-QFAA, from the Nordic nRF family. Other key parts include the MIC550X, FT234XD and E22-X00M22S. By type, the board carries 17 capacitors, 6 resistors, 4 ICs, 3 diodes, 2 connectors and 1 crystal.

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

From the project

This is a work in progress for a wireless weather station project.

This is a work in progress for a wireless weather station project.

Hardware - Main development board design files Firmware - Code for the microcontroller * Software - Python scripts to communicate with the weather station, log, and plot data

Main components on the NRF52811 USB LoRa

MIC550XFT234XDNRF52811-QFAAE22-X00M22S

NRF52811 USB LoRa bill of materials (BOM)

34 components, 19 distinct parts.

QtyPartRefs
1
MIC550X
U1
1
FT234XD
U2
1
NRF52811-QFAA
U3
1
E22-X00M22S
U4
1
32.768kHz
Y1
1
USB_A
J1
1
TC2030-CTX
J3
3
LED_ALT
D1, D2, D3
1
FB
FB1
4
1uF
C1, C5, C14, C19
2
47pF
C2, C4
1
10nF
C3
5
0.1uF
C6, C11, C13, C15, C18
2
4.7uF
C7, C12
2
12pF
C9, C10
1
100pF
C16
1
DNP
R1
2
27
R2, R6
3
10k
R3, R4, R5

NRF52811 USB LoRa design files

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

NRF52811 USB LoRa: common questions

What microcontroller does the NRF52811 USB LoRa use?

The NRF52811 USB LoRa is built around the NRF52811-QFAA, from the Nordic nRF family.

How big is the NRF52811 USB LoRa PCB?

The NRF52811 USB LoRa measures 31 × 19 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the NRF52811 USB LoRa?

34 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the NRF52811 USB LoRa design files?

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

Can I use the NRF52811 USB LoRa design in my own project?

Yes, under the terms of its MIT license, which alvarop chose for the repository.

Can I test firmware for the NRF52811 USB LoRa without the hardware?

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

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