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Cyton wired

BostonUniversitySeniorDesign·brain-4ce·hardware/electrical/cyton wired/cyton wired.kicad_pcb

Cyton wired PCB layout, top view — open source PIC board by BostonUniversitySeniorDesign

About the Cyton wired PCB

Cyton wired is an open source PIC PCB design by BostonUniversitySeniorDesign, published on GitHub. It is a 4-layer board measuring 61.4 × 61.3 mm, with 89 components from 41 distinct parts.

Its main chip is the PIC32MX250F128B-I/SS, from the PIC family. Other key parts include the ADS129X, CP2102N-AXX-XQFN24, MCP1754T-3302E/OT, LM2664 and TPS7A24. By type, the board carries 41 capacitors, 16 resistors, 13 diodes, 7 ICs, 5 connectors and 2 switches.

It belongs with the usb & debug tools designs in this gallery.

From the project

This breakthrough technology is integrated with a computer game that provides the user with an environment to navigate using their mind. With the Brain-4ce (pronounced "Brain Force") headset, users can perform four different actions: rotating clockwise, rotating counterclockwise,

This breakthrough technology is integrated with a computer game that provides the user with an environment to navigate using their mind. With the Brain-4ce (pronounced "Brain Force") headset, users can perform four different actions: rotating clockwise, rotating counterclockwise, moving forward, and moving backward. Each action corresponds to a physical motion that the user imagines themselves doing.

Cyton wired, from the project README
From the project README

Main components on the Cyton wired

ADS129XCP2102N-AXX-XQFN24MCP1754T-3302E/OTLM2664TPS7A24TPS723XX-Q1PIC32MX250F128B-I/SS

Cyton wired bill of materials (BOM)

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

QtyPartRefs
1
ADS129X
ADS129x
U1
1
CP2102N-AXX-XQFN24
CP2102N-Axx-xQFN24
U2
1
MCP1754T-3302E/OT
U3
1
LM2664
U4
1
TPS7A24
U5
1
TPS723XX-Q1
TPS723xx-Q1
U6
1
PIC32MX250F128B-I/SS
U7
1
ABMM2-8.000MHZ-E2-T
Y1
1
CONN_02X13_ODD_EVEN
Conn_02x13_Odd_Even
J1
1
CONN_01X08
Conn_01x08
J2
2
CONN_01X04
Conn_01x04
J3, J5
1
CONN_01X02
Conn_01x02
J4
1
USB_B_Micro
CONN1
1
SM_FUSE
F1
2
SW_Push
SW1, SW2
6
TPD4E1B06DCKR
D1, D2, D3, D4, D5, D6
2
ESD_VARISTOR
D7, D8
1
TVS_D
D9
1
LED_RED
D10
1
LED_GREEN
D11
Show 21 more
QtyPartRefs
1
D_Zener
D12
1
LED
D13
2
CHOKE
L1, L2
5
CA0508KRX7R9BB102
C1, C2, C3, C4, C5
9
1UF
1uF
C6, C7, C8, C9, C11, C19, C20, C23 +1
6
0.1UF
0.1uF
C10, C14, C21, C22, C25, C26
1
100UF
100uF
C12
6
10UF
10uF
C13, C29, C30, C36, C38, C41
2
1NF
1nF
C15, C27
2
0.01UF
0.01uF
C16, C34
2
47PF
47pF
C17, C18
6
2.2UF
2.2uF
C28, C31, C32, C33, C35, C37
2
18PF
18pF
C39, C40
5
CAY16-222J4LF
R1, R2, R3, R4, R5
1
1M
R6
2
22 ohm
R7, R8
2
1k ohm
R9, R10
2
330 ohm
R11, R12
1
0
R13
1
1k
R14
2
470K
470k
R15, R16

Cyton wired design files

The KiCad project lives in the BostonUniversitySeniorDesign/brain-4ce repository on GitHub; these links point at the commit this page was built from.

Cyton wired: common questions

What microcontroller does the Cyton wired use?

The Cyton wired is built around the PIC32MX250F128B-I/SS, from the PIC family.

How big is the Cyton wired PCB?

The Cyton wired measures 61.4 × 61.3 mm, has 4 copper layers and is 4.69 mm thick.

How many components are on the Cyton wired?

89 components, from 41 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 Cyton wired design files?

From the BostonUniversitySeniorDesign/brain-4ce 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 Cyton wired design in my own project?

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

Can I test firmware for the Cyton wired without the hardware?

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

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