HardLabs

Phased

Neumi·open_echo·development/phased_array_001_pico/phased.kicad_pcb

Phased PCB layout, top view — open source Raspberry Pi board by Neumi

About the Phased PCB

Phased is an open source Raspberry Pi PCB design by Neumi, published on GitHub. It is a 2-layer board measuring 75 × 100 mm, with 71 components from 20 distinct parts.

Its main chip is the RaspberryPi_Pico_W, from the Raspberry Pi family. Other key parts include the LM339 and MCP6004. By type, the board carries 35 resistors, 13 capacitors, 9 microphones, 6 connectors, 4 ICs and 2 test points.

It belongs with the sensors designs in this gallery.

From the project

Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.

Main components on the Phased

LM339MCP6004RaspberryPi_Pico_W

Phased bill of materials (BOM)

71 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
LM339
U1, U3
2
MCP6004
U2, U5
1
RaspberryPi_Pico_W
A1
1
MMBT2222A
Q1
1
OUT_SELECT
J2
1
MT3608_OUT
J3
1
MT3608_IN
J4
2
MT3608_GND
J5, J6
1
BOOST_ENABLE
J7
8
Microphone_Crystal
MK1, MK2, MK3, MK4, MK5, MK6, MK7, MK8
1
Transducer_TX
MK9
1
U_TRIGG
TP1
1
GND
TP2
1
10UF
10uF
C3
8
1UF
1uF
C8, C9, C10, C11, C16, C17, C18, C19
4
100NF
100nF
C12, C13, C14, C15
10
10K
10k
R1, R2, R6, R10, R14, R18, R22, R26 +2
9
1k
R5, R7, R8, R9, R11, R12, R13, R15 +1
8
100K
100k
R17, R21, R25, R29, R33, R35, R36, R37
8
1M
R19, R23, R27, R31, R38, R39, R40, R41

Phased design files

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

Phased: common questions

What microcontroller does the Phased use?

The Phased is built around the RaspberryPi_Pico_W, from the Raspberry Pi family.

How big is the Phased PCB?

The Phased measures 75 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Phased?

71 components, from 20 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 Phased design files?

From the Neumi/open_echo 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 Phased design in my own project?

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

Can I test firmware for the Phased without the hardware?

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

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