6502 Keypad Helper

acwright·6502-KIM·Hardware/Keypad Helper/Rev 1.0/Keypad Helper.kicad_pcb

6502 Keypad Helper PCB layout, top view — open source board by acwright

About the 6502 Keypad Helper PCB

6502 Keypad Helper is an open source PCB design by acwright, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 100 × 150 mm, with 9 components from 5 distinct parts.

Other key parts include the 74HC00. By type, the board carries 4 capacitors, 2 diodes, 2 resistors and 1 IC.

It belongs with the retro computing and displays & leds designs in this gallery.

From the project

6502-KIM 8-Bit Retro Computer Project

(Image shows the alternative Main Board configuration — preferred Backplane/Backplane Pro build pictured separately)

An AC6502 retro-style 8-bit computer based on the 65C02 microprocessor.

- Overview - Architecture - Systems - Software - Hardware - Backplane / Backplane Pro (preferred) - CPU Card (preferred) - Memory Card (preferred) - Serial Card - Backplane Helper - Keypad Card - Keypad Helper - Keypad LCD Helper - Main Board (alternative) - Firmware - CAD - Production - Schematics - Libraries - Bill of Materials - Keypad Card - Keypad Helper - Keypad LCD Helper - Purchase - License

6502 Keypad Helper, from the project README — From the project README

Main components on the 6502 Keypad Helper

6502 Keypad Helper bill of materials (BOM)

9 components, 5 distinct parts.

Qty	Part	Footprint	Refs
1	74HC00	DIP-14_W7.62mm_Socket_LongPads	U2
2	1N914	D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2
3	100nF	C_Disc_D5.0mm_W2.5mm_P5.00mm	C1, C2, C4
1	1uF	C_Disc_D5.0mm_W2.5mm_P5.00mm	C3
2	100k	R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R1, R2

6502 Keypad Helper design files

The KiCad project lives in the acwright/6502-KIM repository on GitHub; these links point at the commit this page was built from.

6502 Keypad Helper: common questions

How big is the 6502 Keypad Helper PCB?

The 6502 Keypad Helper measures 100 × 150 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 6502 Keypad Helper?

9 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the 6502 Keypad Helper design files?

From the acwright/6502-KIM repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 6502 Keypad Helper design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which acwright chose for the repository.

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