4 layers59 × 53 mm Nff pcb, the printed circuit board in 3D

Nff pcb

Linux SBC featuring two wifi radios, masquerading as a USB charger.

Size: 59 × 53 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 145
Nets: 256
Pads: 774
Tracks, vias: 18,447, 262
Pours: 30
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 17 Mar 2021
Updated: 17 Mar 2023

Overview

Nff pcb is an open-source printed circuit board by o7-machinehum, from the o7-machinehum/wifiwart repository on GitHub, published under the MIT licence. It is a 4-layer board of 59 × 53 mm with 145 parts on 256 nets, routed with 18,447 tracks and 262 vias.

It is built around the A33, AP131-25WG and AS4C512M16D3L-12BINTR. Its parts include 81 capacitors, 32 resistors, 7 ICs, 4 connectors and 4 inductors. It belongs with the radio and wireless and computers and single-board computers boards of this library.

Main components

README

readme.md

Wifiwart

Custom Non Form Factor Board

Final boards

The WiFiWart is an open source WiFi penetration device masquerading as a wall charger. It features a 1.2Ghz Cortex A7 MPU with two WiFi chips. The electrical, mechanical and software elemenet are all completely open source. Check out the blog series!

Parts

145

Qty	Value	Footprint	References
40	100nF	Capacitor_SMD:C_0402_1005Metric	C1, C2, C3, C4, C30, C31, C32, C33, C37, C38, C40, C42, C43, C48, C100, C104 +24
12	22uF	Capacitor_SMD:C_0805_2012Metric	C6, C9, C10, C11, C14, C15, C16, C17, C22, C23, C24, C25
11	TestPoint	TestPoint:TestPoint_Pad_1.0x1.0mm	TP1, TP3, TP6, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18
7	22uF	Capacitor_SMD:C_0402_1005Metric	C53, C54, C55, C56, C69, C70, C94
6	0R	Resistor_SMD:R_0402_1005Metric	R15, R16, R17, R18, R19, R26
6	10uF	Capacitor_SMD:C_0402_1005Metric	C29, C99, C102, C103, C105, C106
5	100k	Resistor_SMD:R_0402_1005Metric	R20, R21, R23, R24, R25
4	10nF	Capacitor_SMD:C_0402_1005Metric	C7, C12, C18, C20
4	1k	Resistor_SMD:R_0402_1005Metric	R1, R2, R4, R5
4	1uH	Inductor_SMD:L_Coilcraft_XxL4020	L1, L2, L3, L4
4	MountingHole	MountingHole:MountingHole_3.2mm_M3	H1, H2, H3, H4
4	TPS62095RGTR	TI:TI_RTE_S-PWQFN-N16	U3, U4, U5, U6
2	10M	Resistor_SMD:R_0402_1005Metric	R29, R31
2	10k	Resistor_SMD:R_0402_1005Metric	R22, R30
2	10pF	Capacitor_SMD:C_0402_1005Metric	C95, C96
2	10uF	Capacitor_SMD:C_0805_2012Metric	C26, C28
2	22R	Resistor_SMD:R_0402_1005Metric	R27, R28
2	240R	Resistor_SMD:R_0402_1005Metric	R3, R6
2	30pF	Capacitor_SMD:C_0402_1005Metric	C97, C98
2	450pF	Capacitor_SMD:C_0402_1005Metric	C8, C13
2	5nF	Capacitor_SMD:C_0402_1005Metric	C19, C21
2	USB_A	Connector_USB:USB_A_Molex_105057_Vertical	J2, J3
1	0.1uF	Capacitor_SMD:C_0402_1005Metric	C27
1	110k	Resistor_SMD:R_0402_1005Metric	R11
1	120k	Resistor_SMD:R_0402_1005Metric	R10
1	150k	Resistor_SMD:R_0402_1005Metric	R8
1	160k	Resistor_SMD:R_0402_1005Metric	R12
1	1uF	Capacitor_SMD:C_0402_1005Metric	C101
1	200k	Resistor_SMD:R_0402_1005Metric	R32
1	220k	Resistor_SMD:R_0402_1005Metric	R14
1	24Mhz	Crystal:Crystal_SMD_Abracon_ABM8G-4Pin_3.2x2.5mm	Y1
1	32.768khz	Abracon:Abracon-ABS05-0-0-MFG	Y2
1	330k	Resistor_SMD:R_0402_1005Metric	R9
1	470k	Resistor_SMD:R_0402_1005Metric	R7
1	82k	Resistor_SMD:R_0402_1005Metric	R13
1	A33	A33_FP:Allwinner_Technology_Co.,_Ltd.-A33-0	U2
1	AP131-25	Package_TO_SOT_SMD:SOT-23-5	U7
1	AS4C512M16D3L-12BIN	AS4C512M16D3L:Alliance_Memory-AS4C512M16D3L-12BIN-0-0-IPC_A	U1
1	Conn_02x10_Odd_Even	Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Vertical	J5
1	Micro_SD_Card_Det_Hirose_DM3AT	Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5	J1

Questions

How big is the Nff pcb PCB?

It measures 59 × 53 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Nff pcb use?

145 parts, built around the A33, AP131-25WG and AS4C512M16D3L-12BINTR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Nff pcb KiCad files?

From the o7-machinehum/wifiwart repository on GitHub, at the commit this page was made from: the board is electronics/nff_pcb/hardware.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Nff pcb design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Radio and wireless Computers and single-board computers

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/o7-machinehum-wifiwart-hardware-3" title="Nff pcb in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/o7-machinehum-wifiwart-hardware-3.jpg" alt="Nff pcb" width="1200" height="900">

A picture that opens the board, for a README

[![Nff pcb](https://pcbkit.io/embed/boards/o7-machinehum-wifiwart-hardware-3.jpg?size=s)](https://pcbkit.io/boards/o7-machinehum-wifiwart-hardware-3)

Source

Repository: o7-machinehum/wifiwart
Board file: electronics/nff_pcb/hardware.kicad_pcb
Commit: 0942b49
Licence: MIT

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