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Keyb2 nofill

krzys9876·ZX_Spectrum_diy·Kicad4/keyb2/keyb2_nofill.kicad_pcb

Keyb2 nofill PCB layout, top view — open source board by krzys9876
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About the Keyb2 nofill PCB

Keyb2 nofill is an open source PCB design by krzys9876, published on GitHub under the MIT license. It is a 2-layer board measuring 177.2 × 103.8 mm, with 59 components from 48 distinct parts.

By type, the board carries 40 switches, 8 diodes, 5 resistors, 4 connectors and 2 capacitors.

It belongs with the test & measurement designs in this gallery.

From the project

KiCad projects (schematics and boards) for a full-diy ZX Spectrum replica

All boards that I designed, etched and soldered to create a full-diy replica of ZX Spectrum. Kicad4 (just a keyboard) and Kicad5

This is NOT a cycle-perfect replica so do not expect to launch fancy demos on it. The project started as a breadboard simplest possible computer using Z80. Quite quickly I started thinking of making a replica of ZX Spectrum - the first computer I ever used as a kid. All I wanted was to:

Keyb2 nofill bill of materials (BOM)

59 components, 48 distinct parts.

QtyPartRefs
1
PWR
J1
1
GND
J2
1
KB
J3
1
ADDR
J4
1
SW_1
SW1
1
SW_Q
SW2
1
SW_A
SW3
1
SW_CAPS
SW4
1
SW_2
SW5
1
SW_W
SW6
1
SW_S
SW7
1
SW_Z
SW8
1
SW_3
SW9
1
SW_E
SW10
1
SW_D
SW11
1
SW_X
SW12
1
SW_4
SW13
1
SW_R
SW14
1
SW_F
SW15
1
SW_C
SW16
Show 28 more
QtyPartRefs
1
SW_5
SW17
1
SW_T
SW18
1
SW_G
SW19
1
SW_V
SW20
1
SW_6
SW21
1
SW_Y
SW22
1
SW_H
SW23
1
SW_B
SW24
1
SW_7
SW25
1
SW_U
SW26
1
SW_J
SW27
1
SW_N
SW28
1
SW_8
SW29
1
SW_I
SW30
1
SW_K
SW31
1
SW_M
SW32
1
SW_9
SW33
1
SW_O
SW34
1
SW_L
SW35
1
SW_SYM
SW36
1
SW_0
SW37
1
SW_P
SW38
1
SW_ENT
SW39
1
SW_SP
SW40
8
D
D1, D2, D3, D4, D5, D6, D7, D8
1
10u
C1
1
100n
C2
5
10k
R1, R2, R3, R4, R5

Keyb2 nofill design files

The KiCad project lives in the krzys9876/ZX_Spectrum_diy repository on GitHub; these links point at the commit this page was built from.

Keyb2 nofill: common questions

How big is the Keyb2 nofill PCB?

The Keyb2 nofill measures 177.2 × 103.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyb2 nofill?

59 components, from 48 distinct parts. The full bill of materials is listed on this page.

Where can I download the Keyb2 nofill design files?

From the krzys9876/ZX_Spectrum_diy repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Keyb2 nofill design in my own project?

Yes, under the terms of its MIT license, which krzys9876 chose for the repository.

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