2 layers45.7 × 31.8 mm
LEDx16 board
tardate/LittleArduinoProjects
a collection of "Little Electronic & Arduino Projects", most involving electronics or an Arduino in one way or another!
36 parts803MIT
2 layers68.8 × 53.6 mm
Eeprom
erikvanzijst/eeprom43Arduino-Based Parallel EEPROM Programmer Circuit
- Size
- 68.8 × 53.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 66
- Pads
- 124
- Tracks, vias
- 316, 27
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 13 May 2019
- Updated
- 30 Aug 2022
Overview
Eeprom is an open-source printed circuit board by erikvanzijst, from the erikvanzijst/eeprom repository on GitHub. It is a 2-layer board of 68.8 × 53.6 mm with 10 parts on 66 nets, routed with 316 tracks and 27 vias.
It is built around the 74HC595. Its parts include 3 capacitors, 3 ICs, 1 resistor and 1 diode. It belongs with the interfaces and adapters boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdParallel EEPROM Programmer
This is a Shield extension board for Arduino UNO R3 that adds the ability to read and write parallel EEPROM chips.
This repository contains:
- Arduino code
- Interactive Python based client to read and write to the EEPROM
- KiCad scehmatic and PCB
Installation and assembly
Install platformio to compile and upload the firmware to the Arduino:
$ platformio run --target uploadOrder the PCB either directly from Oshpark, or use the included Gerber files with any other board house.
With the shield attached to the Uno and hooked up to a computer, fire up the Python client. To write an image to the EEPROM:
$ source ./env/bin/activate
$ cat image.bin | ./eeprom.py load
Loading 400 bytes into EEPROM...
100%
Complete.
$Full writeup is at https://medium.com/@erikvanzijst/diy-eeprom-programmer-4fd11a486ea
The PCB can be ordered from OSH Park.
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C2, C3 |
| 2 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1, U2 |
| 1 | 470R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | AT28C256_40PIN_ZIF | Socket:DIP_Socket-40_W11.9_W12.7_W15.24_W17.78_W18.5_3M_240-1280-00-0602J | U3 |
| 1 | Arduino_Uno_Shield | Arduino:Arduino_Uno_Shield | XA1 |
| 1 | Green | LED_THT:LED_D5.0mm | D1 |
| 1 | LOGO | EEPROM:erik_400dpi_small | G*** |
Questions
How big is the Eeprom PCB?
It measures 68.8 × 53.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Eeprom use?
10 parts, built around the 74HC595. 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 Eeprom KiCad files?
From the erikvanzijst/eeprom repository on GitHub, at the commit this page was made from: the board is kicad/kicad.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Eeprom design in my own project?
Its repository states no licence, so its author keeps all rights: ask erikvanzijst before reusing the design.
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