Arduno shield for testing 4164/4264 (64k x 1bit) & 41256 (256k x 1bit) DRAM that are found in retro computers like the ZX Spectrum, early breadbin Commodore 64 and many more.
Item as shown in pictures.
Black PCB and RAGB LED.
Assembled and tested PCB.
Shield is compatible with Arduino UNO and Arduino Nano.
Setup for Nano, just plug in and program. (Arduino Not Supplied)
May have some marks from hand assembly and testing.
Based on ISS DRAMArduino schematic, further information can be found online.
There are many suitable programs online that are compatible with this tester.
How to use:
Arduno needs to be programmed with a suitable sketch such as Kinetix Extended DRAMArduino code.
Set jumper to suit type of dram, Closed = 4164 or Open = 41256.
Install DRAM with pin 1 closest to zif lever
Connect a USB cable (not supplied)
Press Reset on the Arduino nano or Test button (Button on PCB For UNO use) and allow the test to complete.
Red or Green LED indicate test pass or fail
Swap DRAM and press reset/test to test another
Depending on code used, serial output may be available to view during testing.
Pin Headers NOT Included for Arduino UNO use.
Requires soldering appropriate pin headers to suit Arduino UNO.
All Items sent with Australia Post with tracking.
Items are located in and posted from Australia.
I do combine postage with other items This should automatically be applied in cart.
Use at your own risk.
I take no responsibilty for any damage caused by improper use or installation.