PC Services

"From Payroll to Body Scanners"

Established 1994

PC Services (Electronics)

Arduino Mega Based - Logic Device Tester

Tel: 0118 946 3634
Email

The Company

Resources / Examples

Logic Device Tester

Commentaries

Personal

Logic Device Tester

This example of a custom system, was designed and built for an A level student Computing project for them to design and write the software. In this case a standalone unit for testing logic devices (DIP package 74 series, 14 and 16 pin), utilises an Arduino/Genuino Mega as control.

Complete Logic tester setup on a Mega

Project tested over 30 different devices in the same code, device selection via serial port or PS2 keyboard interface. When a test is completed the Pass or Fail code is also output to serial port, for other systems to log if required.

Monitors some analogue functions and current consumption of the device, along with testing logic functions of many device types.

In real semiconductor testing Automated Handling is often used to load and remove many thousands of devices between tests, so the tester had simulated inputs and outputs using additional switches and LEDs.

Click on an image for an enlarged view of the picture.

Boards features are -

LCD interface - and brightness control for backlight
PS/2 Keyboard interface
Simulated automatic handling interface
Monitoring of device current
Monitoring of a few analogue pins
Simple LED status
Simple push button to start testing
Monitoring if device is loaded
Different Test Interface boards for different sized devices to test
Directly plugs onto an Arduino Mega

Successful Test pass

The main user interface using LCD	The main tester shield
Display when test started with no device	Forced Failure Detection

Interested in something similar contact sales.

© 2016 onwards by PC Services, Reading UK	Last Updated: 9^th August 2017
If you encounter problems with this page please email your comments to webmaster