HardLabs

EProg

KALTCHUK·Z80_Modular_Computer·KiCAD files/EProg/EProg.kicad_pcb

EProg PCB layout, top view — open source AVR/Arduino board by KALTCHUK

About the EProg PCB

EProg is an open source AVR/Arduino PCB design by KALTCHUK, published on GitHub. It is a 2-layer board measuring 100 × 71.1 mm, with 12 components from 6 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the 8255A and 27C512. By type, the board carries 8 connectors, 2 ICs, 1 module and 1 capacitor.

It belongs with the retro computing designs in this gallery.

From the project

"Anyone who has brought up CP/M on a homebuilt computer has felt this moment of elation. A myriad of connections are properly closed; bits are flying at lightning speeds over busses and through circuits and program logic, to produce a single prompt". Gary Kildall

Main components on the EProg

8255A27C512Arduino_Nano_v3.x

EProg bill of materials (BOM)

12 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
8255A
U4
1
27C512
U5
1
Arduino_Nano_v3.x
A1
7
Conn_01x01_Male
J1, J3, J4, J5, J6, J7, J8
1
Conn_01x01
J2
1
10n
C7

EProg design files

The KiCad project lives in the KALTCHUK/Z80_Modular_Computer repository on GitHub; these links point at the commit this page was built from.

EProg: common questions

What microcontroller does the EProg use?

The EProg is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the EProg PCB?

The EProg measures 100 × 71.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the EProg?

12 components, from 6 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 EProg design files?

From the KALTCHUK/Z80_Modular_Computer 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 EProg design in my own project?

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

Can I test firmware for the EProg without the hardware?

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

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