HardLabs

Soilsense RFtest

fredriknk·ssense·CAD/Soilsense_RFtest/Soilsense_RFtest.kicad_pcb

Soilsense RFtest PCB layout, top view — open source Nordic nRF board by fredriknk

About the Soilsense RFtest PCB

Soilsense RFtest is an open source Nordic nRF PCB design by fredriknk, published on GitHub under the MIT license. It is a 4-layer board measuring 90 × 21 mm, with 60 components from 36 distinct parts.

Its main chip is the nRF52833_QDAA, from the Nordic nRF family. Other key parts include the SHTC3. By type, the board carries 21 capacitors, 12 resistors, 6 diodes, 5 inductors, 3 transistors and 3 crystals.

Main components on the Soilsense RFtest

SHTC3nRF52833_QDAA

Soilsense RFtest bill of materials (BOM)

60 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SHTC3
U1
1
nRF52833_QDAA
nRF52833_QDxx
U2
1
MMBT3906-7-F
MMBT3906
Q1
1
ALS-PT19-315C/L177/TR8
Q_Photo_NPN
Q2
1
IRLML6401
Q3
1
KC3225K75.0000C1GE00
X1
1
XRCGB32M000F2P01R0
32MHz
Y1
1
CM8V-T1A-32.768KHZ-9PF-20PPM-TA-QC
32.768kHz
Y2
1
JLINK
J1
1
Conn_Coaxial
J2
1
2460
Keystone 2460
BT1
3
9774025360R
H1, H2, H3
1
B3U-1000P-B
B3U-1000P
RST1
1
B3U-1000P-B
B3U-1000P
SW1
3
CDSU101A
D1, D2, D4
1
LG L29K-G2J1-24-Z
LED
D3
2
EDZVT2R5.1B
Zener Prot 5V
D5, D6
1
10uH
L1
1
15nH
L2
1
SDR0604A-4R7ML
4.7uH
L3
Show 16 more
QtyPartRefs
2
NC
L6, L7
3
1nF
C1, C4, C10
5
100nF
C2, C3, C9, C13, C16
4
12pF
C5, C6, C19, C20
1
47nF
C7
2
1uF
C8, C12
1
4.7uF
C11
1
100pF
C15
2
NC
C17, C18
1
GJM1555C1H1R0WB01D
1.0pF
C22
1
0R placeholder
C23
6
10k
R1, R5, R6, R8, R11, R12
2
10k
R2, R9
2
1M
R3, R10
1
1k
R4
1
470R
R7

Soilsense RFtest design files

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

Soilsense RFtest: common questions

What microcontroller does the Soilsense RFtest use?

The Soilsense RFtest is built around the nRF52833_QDAA, from the Nordic nRF family.

How big is the Soilsense RFtest PCB?

The Soilsense RFtest measures 90 × 21 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Soilsense RFtest?

60 components, from 36 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 Soilsense RFtest design files?

From the fredriknk/ssense 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 Soilsense RFtest design in my own project?

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

Can I test firmware for the Soilsense RFtest 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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