HardLabs

Sense rev4

Appiko·sense_snap_hw·sense_rev4/sense_rev4.kicad_pcb

Sense rev4 PCB layout, top view — open source Nordic nRF board by Appiko

About the Sense rev4 PCB

Sense rev4 is an open source Nordic nRF PCB design by Appiko, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 68 × 52 mm, with 41 components from 26 distinct parts.

Its main chip is the MDBT42Q, from the Nordic nRF family. Other key parts include the PIR, TLV8802 and MCP4012T-503E/CH. By type, the board carries 15 capacitors, 12 resistors, 4 ICs, 2 connectors, 2 diodes and 2 inductors.

From the project

This repository contains all the KiCad based PCB design and related documentation for all the PCBs developed at Appiko.

This repository contains all the KiCad based PCB design and related documentation for all the circuit boards developed at Appiko.

All the design files are licensed using CERN Open Hardware Licence v1.2.

Main components on the Sense rev4

MDBT42QPIRTLV8802MCP4012T-503E/CH

Sense rev4 bill of materials (BOM)

41 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MDBT42Q
U1
1
PIR
U2
1
TLV8802
U3
1
MCP4012T-503E/CH
U4
1
TSM2301
Q_PMOS_DGS
Q1
1
Crystal
Y1
1
AUDIO-JACK-4
Audio-Jack-4
J1
1
Conn_01x02
J2
1
Battery
BT1
1
SW_SPST
SW1
1
XZMDKVG45S
LED_GREEN/RED
D1
1
1N4148
D2
1
15NH
15nH
L1
1
10NH
10nH
L2
1
10UF
10uF
C1
2
1UF
1uF
C2, C3
2
8PF
8pF
C4, C6
2
100NF
100nF
C5, C11
3
22UF
22uF
C7, C8, C13
2
6.8NF
6.8nF
C9, C10
Show 6 more
QtyPartRefs
1
100PF
100pF
C12
2
100NF
0.1uF
C14, C15
2
33E
22E
R1, R2
4
1M5
R3, R4, R7, R8
5
33K
33k
R5, R6, R9, R10, R12
1
47K
47k
R11

Sense rev4 design files

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

Sense rev4: common questions

What microcontroller does the Sense rev4 use?

The Sense rev4 is built around the MDBT42Q, from the Nordic nRF family.

How big is the Sense rev4 PCB?

The Sense rev4 measures 68 × 52 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sense rev4?

41 components, from 26 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 Sense rev4 design files?

From the Appiko/sense_snap_hw repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Sense rev4 design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which Appiko chose for the repository.

Can I test firmware for the Sense rev4 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.

More boards in sense_snap_hw

Earlier revisions in the repo: sense_rev3, sense_rev2

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