HardLabs

Interface brain

ademuri·colordance-circle·hardware/interface-brain/interface-brain.kicad_pcb

Interface brain PCB layout, top view — open source NXP board by ademuri

About the Interface brain PCB

Interface brain is an open source NXP PCB design by ademuri, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 154.5 × 105 mm, with 170 components from 29 distinct parts.

Its main chip is the PPPC241LFBN-RC, from the NXP family. Other key parts include the SN74ACT244PWR, ISL83490IBZ-T and AP3211KTR-G1. By type, the board carries 61 capacitors, 54 resistors, 40 connectors, 9 diodes, 5 ICs and 1 inductor.

From the project

An art project that uses arrays of colored lights around a circle to create kaleidoscopic colored shadows.

An art project that uses arrays of colored lights around a circle to create kaleidoscopic colored shadows.

"This is not an officially supported Google product"

This project uses two build systems, PlatformIO and CMake. PIO is for code which runs on embedded devices - these run the actual hardware. CMake is for running tests on standard PCs.

To build with PlatformIO, run pio run -e , where is one defined in platformio.ini (e.g. teensy`).

Main components on the Interface brain

SN74ACT244PWRPPPC241LFBN-RCISL83490IBZ-TAP3211KTR-G1

Interface brain bill of materials (BOM)

170 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
SN74ACT244PWR
U1, U2
1
PPPC241LFBN-RC
Teensy4.1
U3
1
ISL83490IBZ-T
ISL83490
U4
1
AP3211KTR-G1
AP3211
U5
1
Anderson
J1
24
69167-103HLF
Conn_01x03
J2, J3, J4, J5, J6, J7, J8, J9 +16
14
76384-302LF
Conn_01x02
J18, J19, J20, J21, J26, J27, J28, J29 +6
1
54601-908WPLF
RJ45
J40
1
SMBJ13CA
D_TVS_12V
D1
1
C8678
SCHOTTKY
D2
4
SMBJ6.0CD-M3/H
D_TVS_DATA
D3, D4, D5, D7
1
LED
D6
1
SMBJ6.0CD-M3/H
D_TVS_5V
D8
1
C8678
D
D9
1
NR6028T6R0M
5.6uH
L1
39
100NF
100nF
C1, C2, C3, C4, C8, C9, C10, C11 +31
2
ESC477M035AH4EA
470uF
C5, C56
3
10UF
10uF
C6, C59, C61
1
10NF
10nF
C7
14
22NF
22nF
C24, C25, C26, C27, C36, C37, C38, C39 +6
Show 9 more
QtyPartRefs
1
22UF
22uF
C54
1
1NF
1nF
C57
5
10K
10k
R1, R2, R3, R4, R25
1
RMCF0603FT11K5
11.5k
R5
1
RC1608F2211CS
2.21k
R6
1
120
R7
16
33
R9, R10, R11, R12, R13, R14, R15, R16 +8
22
1k
R26, R27, R28, R29, R30, R31, R32, R33 +14
8
DNP
R34, R35, R36, R37, R50, R51, R52, R53

Interface brain design files

The KiCad project lives in the ademuri/colordance-circle repository on GitHub; these links point at the commit this page was built from.

Interface brain: common questions

What microcontroller does the Interface brain use?

The Interface brain is built around the PPPC241LFBN-RC, from the NXP family.

How big is the Interface brain PCB?

The Interface brain measures 154.5 × 105 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Interface brain?

170 components, from 29 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 Interface brain design files?

From the ademuri/colordance-circle 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 Interface brain design in my own project?

Yes, under the terms of its Apache-2.0 license, which ademuri chose for the repository.

Can I test firmware for the Interface brain without the hardware?

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

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