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Pulsephone main board

pulseopen·PulsePhone·main_board/pulsephone_main_board.kicad_pcb

Pulsephone main board layout, top view — open source board by pulseopen

About the Pulsephone main board

Pulsephone main board is an open source PCB design by pulseopen, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 70.5 × 128.5 mm, with 70 components from 31 distinct parts.

Other key parts include the XL1509-3.3, PCM5102APWR, TPS63020DSJR/3.7V Reg and TP4056-42-ESOP8. By type, the board carries 38 capacitors, 11 resistors, 6 connectors, 5 ICs, 3 diodes and 3 inductors.

It belongs with the audio, iot & wireless and displays & leds designs in this gallery.

From the project

An almost fully modular open source phone running off of the DART-MX8M-MINI SoM.

Built around the MCM-iMX93 System-on-Module, PulsePhone uses Hirose DF40 board-to-board connectors across all subsystems — keeping modules isolated, swappable, and independently developable.

The Main Board is the hub of the system, hosting the MCM-iMX93 SoM, an onboard DAC, and all signal routing. Every peripheral connects to it via DF40 connectors.

Full connector pinout in MBI-Lite Specification.

Pulsephone main board, from the project README
From the project README

Main components on the Pulsephone main board

XL1509-3.3PCM5102APWRTPS63020DSJR/3.7V RegTP4056-42-ESOP8

Pulsephone main board bill of materials (BOM)

70 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XL1509-3.3
U1
1
PCM5102APWR
U2
1
~
U3
1
TPS63020DSJR/3.7V Reg
U4
1
TP4056-42-ESOP8
U5
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J1
1
CONN_01X05
Conn_01x05
J2
3
CONN_2ROWS-35PINS_MOUNTINGPIN
Conn_2Rows-35Pins_MountingPin
J3, J4, J5
1
MICRO_SD_CARD_DET1
Micro_SD_Card_Det1
J7
1
Battery
BT1
1
MCM93_MOD
MCM93_MOD1
1
SW_Push
ON/OFF1
1
SW_Push
RESET1
2
D_Schottky
D1, D4
1
LED
D5
1
47UH
47uh
L1
1
1UH
1uH
L2
1
1.5UH
1.5uH
L3
28
22UF
22uF
C1, C7, C8, C9, C10, C11, C14, C15 +20
7
10UF
10uF
C2, C3, C6, C12, C13, C33, C34
Show 11 more
QtyPartRefs
2
2.2UF
2.2uF
C4, C5
1
100NF
100nF
C43
1
1Mega Ohm
R1
2
5.1 kΩ
R2, R3
1
1.2 kΩ
R4
2
10 kΩ
R5, R6
1
1.1 MΩ
R7
1
1kΩ
R8
1
174 kΩ
R9
1
1 MΩ
R10
1
51 kΩ
R11

Pulsephone main board design files

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

Pulsephone main board: common questions

How big is the Pulsephone main board?

The Pulsephone main board measures 70.5 × 128.5 mm, has 4 copper layers and is 1.580794 mm thick.

How many components are on the Pulsephone main board?

70 components, from 31 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 Pulsephone main board design files?

From the pulseopen/PulsePhone 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 Pulsephone main board design in my own project?

Yes, under the terms of its GPL-3.0 license, which pulseopen chose for the repository.

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