HardLabs

-NRF LoRa

JBeeBK·-NRF_LoRa·00_Hardware/LoRa_Project.kicad_pcb

-NRF LoRa PCB layout, top view — open source Nordic nRF board by JBeeBK

About the -NRF LoRa PCB

-NRF LoRa is an open source Nordic nRF PCB design by JBeeBK, published on GitHub. It is a 4-layer board measuring 60 × 45 mm, with 78 components from 51 distinct parts.

Its main chip is the nRF52840-QFAA, from the Nordic nRF family. Other key parts include the MAX17048G+T10, E22-900M22S, TPS2116DRLR, MIC5219-3.3YM5 and USBLC6-2SC6. By type, the board carries 29 capacitors, 20 resistors, 8 ICs, 7 diodes, 6 connectors and 5 inductors.

It belongs with the rf & radio, power & battery and keyboards designs in this gallery.

From the project

868Mhz LoRa board with USB/Battery Power. MCU is nRF52840 and some IO to add screen and keyboard.

PCB design for a Nordic nRF52840 (QFN48) with SX1262 LoRa module. Designed as a low-power mesh node for experimentation and LoRaWan or Meshtastic development.

This repo documents the hardware design; firmware will be added once the board is fabricated.

-NRF LoRa, from the project README
From the project README

Main components on the -NRF LoRa

MAX17048G+T10E22-900M22STPS2116DRLRMIC5219-3.3YM5USBLC6-2SC6MCP73831-2-OTnRF52840-QFAAFT231XS

-NRF LoRa bill of materials (BOM)

78 components, 51 distinct parts.

QtyPartRefs
1
MAX17048G+T10
IC1
1
E22-900M22S
IC2
1
TPS2116DRLR
U1
1
MIC5219-3.3YM5
U2
1
USBLC6-2SC6
U3
1
MCP73831-2-OT
U4
1
nRF52840-QFAA
U5
1
FT231XS
U6
1
Crystal
Y1
4
Conn_01x04_Pin
J1, J3, J6, J7
1
USB_C_Receptacle_USB2.0_16P
GCT
J2
1
Header_01x02_2.0mm JST PH
J4
1
2450AT18B100E
E1
1
~
RST1
1
LED Yellow
D1
1
LED Blue
D2
1
USB PWR
D3
1
BATT PWR
D4
1
VREG
D5
1
LED Orange
D6
Show 31 more
QtyPartRefs
1
LED Green
D7
1
10uH
L2
1
15uH
L3
1
3.3nH
L4
1
2.7nH
L5
1
4.7nH
L6
2
10uF
C1, C2
5
100nF
C3, C11, C12, C13, C27
1
470pF
C4
3
1uF
C5, C14, C19
3
100nF
C6, C17, C18
1
10uF
C7
5
100nF
C8, C10, C26, C28, C29
2
8pF
C9, C25
2
1uF
C20, C21
1
47nF
C22
1
C_NP
C23
1
100pF
C24
1
1.2pF
C30
1
1pF
C31
2
100k
R1, R2
2
5.1k
R3, R4
2
10k
R5, R20
1
4k7
R6
2
270R
R7, R8
2
1.5k
R9, R10
1
1k
R11
2
10k
R12, R18
2
1K
R13, R16
2
4k7
R14, R15
2
27R
R19, R21

-NRF LoRa design files

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

-NRF LoRa: common questions

What microcontroller does the -NRF LoRa use?

The -NRF LoRa is built around the nRF52840-QFAA, from the Nordic nRF family.

How big is the -NRF LoRa PCB?

The -NRF LoRa measures 60 × 45 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the -NRF LoRa?

78 components, from 51 distinct parts. The full bill of materials is listed on this page.

Where can I download the -NRF LoRa design files?

From the JBeeBK/-NRF_LoRa repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the -NRF LoRa design in my own project?

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

Can I test firmware for the -NRF 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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