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Node rev.2

engelberd·sensor-system·hardware/Node rev.2/Node rev.2.kicad_pcb

Node rev.2 PCB layout, top view — open source RP2040/RP2350 board by engelberd

About the Node rev.2 PCB

Node rev.2 is an open source RP2040/RP2350 PCB design by engelberd, published on GitHub. It is a 2-layer board measuring 52.7 × 104.5 mm, with 14 components from 12 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the OKI-78SR-5_1_5-W36-C and LP2950CZ-3.3/NOPB. By type, the board carries 5 capacitors, 2 ICs, 2 connectors, 1 module, 1 fuse and 1 diode.

It belongs with the sensors designs in this gallery.

From the project

Hardware design files for the Sensor System project.

Hardware design files for the Sensor System project.

The directory name is historical. This is an unreleased custom-board design, not the definition of the V2 boards installed in Sanok. Installed V2 wiring is defined by node/config/boardprofile.h`: SCK 14, MOSI 15, MISO 12, CS 13, DRDY 11, INT1 10 and no firmware-controlled DE pin. Do not change the firmware revision map from the in-progress KiCad project without a physical bring-up and an explicit new board revision.

Main components on the Node rev.2

OKI-78SR-5_1_5-W36-CLP2950CZ-3.3/NOPB

Node rev.2 bill of materials (BOM)

14 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OKI-78SR-5_1_5-W36-C
Murata Electronics
U1
1
LP2950CZ-3.3/NOPB
Texas Instruments
U2
1
~
MOD1
2
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
J1, J2
1
MF-R050
BOURNS
F1
1
RaspberryPi_Pico
PICO1
1
P6KE15A-DIO
DIOTEC SEMICONDUCTOR
D1
1
FRH035080-A
L1
1
220UF
220uF
C2
2
100NF
100nF
Vishay Intertech
C3, C6
1
10UF
10uF
C4
1
470UF
470uF
C5

Node rev.2 design files

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

Node rev.2: common questions

What microcontroller does the Node rev.2 use?

The Node rev.2 is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Node rev.2 PCB?

The Node rev.2 measures 52.7 × 104.5 mm, has 2 copper layers and is 0.19 mm thick.

How many components are on the Node rev.2?

14 components, from 12 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 Node rev.2 design files?

From the engelberd/sensor-system 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 Node rev.2 design in my own project?

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

Can I test firmware for the Node rev.2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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