Projects

List of Projects, Developments, and Inventions

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Year Customer Description
1969
NCR
In-Circuit Tester for NCR 80 IC's ...... for 615 Century Computer
"
NCR
 615/500 Latch Test Card .............Tool................Received Dayton Award
1970
NCR
 Switching Unit for 361 Paper Tape Reader to be shared between a 390 and 500 Computer...... Mine Safety
1972
 Bubble Machine for Beverleys Dance at Eistedford ......................."I'm forever blowing bubbles"
1973
NCR
 210 Mod for Drawer Opening
"
NCR
 210 Mod for sequence control
"
NCR
 230 Mod Prevents adding to total 30
"
NCR
 Tester (named Joe) to operate keyboards continuously for testing purposes...............Mechanical
"
NCR
 Hammer Module Tester ............Exercises 640 Hammer Modules..............Copied by Spain Rework Centre
"
NCR
 Tester (Joe 2) Electronic version of Joe.....Operates Keyboards of Cash Registers or Calculators for testing
"
NCR
 655 Head Tester
"
NCR
 615 Disk Pack Rework Jig
"
NCR
 Board Comparator Tester .................Used for repairing 615 and 230 boards
"
NCR
 Dual Oscilloscope In-Circuit Tester .........Tracker for comparing a good and bad board
"
NCR
 Pulse Catcher..............Tool for latching multiple signals
"
NCR
 Logic Probe ..................Field and Rework Tool ...........................Schematic
"
NCR
 Hammer Driver Tester................for testing 640 Hammer Drivers ........... Photo of Jigs and Testers
"
NCR
 Motor Control Board Tester
"
NCR
 18-36 Calculator .. Mod .........one of first machines to use the Intel 4004 microprocessor.... by Busicom
1975
NCR
 Pulse Generator and IC Tester
"
NCR
 PSP PSP In-Circuit Tester.................Could test TTL, ECL, and CMOS Logic chip.............. Class
"
NCR
 7500 Scale Interface for Senekal Ko-Op
"
NCR
 2140 Label Printer Interface.................for Metro
"
NCR
 2115 Compulsary Sales Tax Mod ...............for OK Bazaars .............Schematic
"
NCR
 2115 Sales Tax Mod ..............for Edgars ...........................Schematic
"
NCR
 2116 Sales Tax Mod ...........for Edgars
"
NCR
 2115 Sales Tax Mod ..........for Woolworths ............................Schematic
"
NCR
 796 Keyboard Mod ...........for SARB .....................Schematic
"
NCR
 Switching Units .......................for SARB
"
NCR
 225 Parking Boom Control
" NCR
2140 Display Control
1980
NCR
 2116 Boom Control + No Sale Inhibit.............for Sun City
"
NCR
 In- Circuit Transister Testerer...............received E & I Award .......................Schematic
"
NCR
 2116 Mod................for Air Terminal Services .......................schematic
"
NCR
 Switching Unit............for Checkers.............726
"
NCR
 Switching Unit....................for Barclays ..............7750
"
NCR
 260 Mod Prevents Fast Operation..............for Klerksdorp
"
NCR
 2125 CDV Mod.........Provides Check Digit Verification........(TTL Solution)
"
NCR
 2135 Compulsary Tax Mod
1981
NCR
 2950 Waste Proof System .......for Trust Bank, Barclays, Standard Bank. .Interface Board ...sold around 300
"
NCR
 2950 Waste Proof System Interface Board Tester for Rework Centre
"
NCR
 2950 Audio Cassette Interface Mod
"
NCR
 2950 to 7740 7740 Interface
"
NCR
 775 ..50 Cheque Mod..for Standard Bank
"
NCR
 775 Journal Low Mod.............for Standard Bank
"
NCR
 775 Pocket Full Warning Mod
"
NCR
 775 Deaf Operator Mod...............for Barklays
"
NCR
 2120 Sales Tax Mod.............for OK Bazaars
"
NCR
 8200 IDC.B Mod
1982
NCR
 2125 2116 Remote Display and Printer................for Frasers
"
NCR
 2115 2116 Reciept On-Off Mod
"
NCR
 Movie Prop...............Modified Calculator
"
NCR
 Static Protection and Static Simulator
"
NCR
 2117 Mod.......for Woolworths
"
NCR
 Plastic Sealing Tool for Rework Centre
"
NCR
 Signature Probe ............Digital logic counter...... Used to troubleshoot logic on PCB boards
1983
NCR
 2117 Boom Control...............for Sun City
"
NCR
 2117 Turnstyle Control
"
NCR
 758 Mod....................for SARB
"
NCR
 A to D Interface for DM5 ...............Schematic................ PCB
"
Centronics to Answer Printer Interface................Used on my Acorn Atom Computer ........................Photo
"
   Eprom Programmer ..............Technicon Project..........8085 processor ........Uses MCS-85 Micro Controller Kit
   
"
NCR
 7750 Number Lister Printer Mod...................for VL & G
"
NCR
 Real Time Clock for DM5 ..............................Schematic
"
NCR
 Centronics to Answer Printer Interface....................8085 processor
"
 Atari Rom Writer
"
NCR
 Programable Combination Lock .......8085 processor.......for Support Room and Rework Centre ..Schematic
1984
NCR
 Scale to DM5 Interface
"
NCR
 DM5 to Petrol Pump Interface
"
NCR
 DM5 Drawer Interface
"
NCR
 Daisy RS232 Interface for DM5 .....................Schematic
"
NCR
 Bus Switcher for DM5 ....................... Schematic ....................Diagram
"
   DM5 Speech Board ........Uses SP0256 Chip
"
8748 In-Circuit Emulator and Programmer ............Technicon Project..........Z80 processor
"
Electronic Dice ..............8748 processor ........ Technicon Project
"
NCR
 2118 to DM5 Interface
"
Z80 In-Circuit Emulator.......................run from DM5
"
 Z80 Logic Anylyser ..................run from DM5
1985
NCR
 DLC Adaptor r..............IHDLC to RS232...........used by NCR Support and also sold to Pick n Pay
"
NCR
 7820 Not On File Mod.................for Pick n Pay Australia ................Schematic
"
NCR
 2117 Sales Tax Mod ................... for Frasers ..................Schematic
"
NCR
 2117 Reciept On-Off Switch
"
Jan
 Photo Club Scorer.................for Jan Dingshoff..................uses Eprom Logic
"
NCR
 RS232 Controller ..................8035 processor .................Schematic
"
NCR
 Electronic Drawer..................Opens on any string of characters...............8035 processor
"
NCR
 Trigger Box.........Activated by any string of characters ......8035 processor.............used to halt a Datascope .................................Used to trace intermittant 2126 fault at OK Bazaars
"
 Moving Message Display Unit .........Programable..........................Z80 processor
"
NCR
 7770 to PC Interface..........gives 7770 High Order Communication..........for Standard Bank .........Schematic
"
NCR
 Datascope to build above Interface..........used to analyse 7770 pocket LAN Protocol .................8039 processor
"
NCR
 RS232 Breakout Box ..................Tool for Field Engineers
"
NCR
 Code Activated Switch.........Soft Serial Switching Unit.............8035 processor
1986
NCR
 Thermal Printer Controller................Centronics to Thermal Printer...............Z80 processor ............Schematic
"
Logic Clip Monitor....................... Practical Electronics Award
" NCR
OCIA to PC Interface..................for CNA................8039 processor ..............Schematic
"
NCR
 7901 Upper Case Indicator...............for Overseas Marketing.................. Schematic
"
NCR
 7901 Alpha Key Lock
"
NCR
 5070 ATM Runaway Protection..... ....... Schematic................and.....Block Diagram
"
Colin
 Meter Unit .....................for Colin..........................8035 processor
"
Colin
 Hand Held Capture Unit ......................for Colin..................8035 processor
"
NCR
 7770 Thermal Printer
1987
NCR
 2841 to 2152 Interface ............................for Durban Market..............8039 Processor
"
NCR
 7770 Service Aid.............................Tool to switch between 7770 and PC Screen
"
 Musical Doorbell...............Selects different tune by number of presses...................8035 processor
"
 8051 In-Circuit Emulator ...............photo2 ...........Runs from DM5.................8031 processor
1988
NCR
 1225 Customer Display .......for Pick n Pay..........8031 processor .........Schematic
"
Ivor
 Binary Clock for Ivor Moolman........................8031 processor
"
 Speech Synthsiser ...............DM5......................uses 256 speech chip
"
NCR
 Barcode Reader for Cheque Printer......for ABSA ATM's........8031 processor........... Barcodes
1989
NCR
 2113 Customer Display ................for Woolworths
"
NCR
 Wand Barcode Reader.......for Pick n Pay..........8031 processor ...................Schematic
"
 Tranceiver..........for Alarms etc...............Two Wire link including Power.................. Schematic
"
   MCS-52 Basic Controller
1990
NCR
 Romulator ......for Firmware Development .......uses Ram to Emulate an Eprom ............Schematic
"
NCR
 Checkout Terminal using Dumb Screen....................for Shield
"
NCR
 Micro Processor Tester using Rom Emulation..............for Rework
"
NCR
 UPS Interface ..for NBS and Standard Bank...makes a standard UPS Intelligent............. Flyer ............
"
NCR
 Remote Status Indicator for ATM's. ( . CAI ......uses RF Link................Sold to FNB and NCR Ghana
"
NCR
 Serial Eprom Programmer ......... Photo2 .......Hex file sent down from a Computer............8051 Processor
"
NCR
 Logic Analyser.................. input to a DM5 screen
"
Bern
 Stepper Motor Controller................for Bernard
"
NCR
 7820 Not on File Mod........for Pick n Pay..........8051.......... Schematic.................... Waveforms
"
NCR
 Not on File Tester........................8051 processor
"
Tanbee
 Serial Port Expander.....................for Tanbee
" Tanbee

Parallel Port Buffer .....................for Tanbee ................. Photo

1991
   Electronic Dice ....................PIC Microcontroller Course ............. Farsoft Computers
1992
   Microprocessor Test Tool ....................... Used to single step a Microprocessor........Displays Address and Data
"
NCR
 HP Logic Analyser............................ Waveforms
1993
NCR
 Scanner Security Feature...............for Babcock..............8051 processor
"
PC Port Expander.......................8051 processor
"
NCR
 PC Drawer Control ........................ Retail Control Board ................... Flyer
"
NCR
 Terminal Drawer Control.................... 8051 processor.............................. Flyer
"
NCR
 Static Strap Tester......................for Rework Centre
"
NCR
 2127 Scanner Mod..............for Game................8051
"
Ed
 Magnometerr..............for Ed Wilson...............Measures Air Speed.............8051
1994
NCR
 Drawer Driver for ELPOS
"
NCR
 RS232 Interface for 1255 checkouts .... Protocol Converter.....fitted to all Pick n Pay Checkouts (3500)
"
NCR
 Thermal Printer Interface ........for Pick n Pay...... Schematic ...........Sample Receipts
"
NCR
 Thermal Printer Simulator.............................. Schematic
"
NCR
 RS232 Interface board Tester
"
NCR
 ATM Exit Counter...................Mechanical Counter to count notes
"
NCR
 Tamper Indicator Card Reader Mod for ATM's...... MCRW .......fitted to all ABSA ATM's ........PIC 16C711
"
NCR
 Tamper Indicator Board Tester
1995
NCR
 Thermal Printer Simulator
1998
NCR
 CableTester...............for Tamper Indicator Feature.............8751
1999
Jo
 Fuel Injector Simulator.......................for Jo.................PIC 16F84 processor
"
   Tile Sensor..........Capacitive circuit to detect a person standing on the tile
"
Jo
 VW Regulator ..............for Jo..............7805
"
Jo
 Lambda Sensor .........................for Jo........................Oxygen Sensor
2000
 Runabout Robot ....................PIC16C84 ......... Version 1
"
 Garage Door Indicator (beeper).........................2051 processor
"
Alan
 ATM Simulator ..................for Alan Townsend Australia
"
NCR
 7731 Cheque Fraud Detect ...........for Nedcor ..........fitted to all Nedbank 7731's..............2051 processor
"
Jo
 Electronic Control Unit....... for Cars.........for Jo........ECU ...........89S8253 processor
2002
   PC Keyboard Decoder..................Keyboard to RS232
2003
   Electronic Letter Box
"
Loraine
 RF Sensor for Ivan................so Loraine can know when Ivan gets up
"
Jo
 Hall Sensors ..................for Jo
"
   Round LED Clock....... ........................89S8253 processor
"
   ATMEL ISP Software Downloader ................... Before Atmel developed their version
"
Jo
 Handheld Unit ....................For setting up ECU...............for Jo
"
Jo
 Comparator Tester for Jo
"
Alan
 Modem Test Tool ...................for Alan Townsend Australia
"
Alarm Control Unit.................. Perimeter Alarm
"
Jo
 Cable Tester for Jo
"
Ed
 Battery Charger................for Ed Wilson
"
Jo
 Data Logger .................for Jo
"
89S8252 Downloader via RS232 + Software..........................used to load 89S8252 chip
"
   Downloader Cable for 89S8252 via LPT1 + Software.....................used to load 89S8252 chip
2006
   Automatic Door Bell......uses 2051 + Motion Detector..................Received Practical Electronics Award
"
   Adjustable Touch Switch ..................Received Practical Electronics Award
"
   Binary Clock ................2051 + RTC chip
"
   55 Second Telephone Timer......................for Denny
2007
   Dot Matrix LED Display Unit .......... Colour Version .......+........Software
"
   Nixie Clock
"
   Porthole 3D Picture .......uses round neon tube
"
Jennae
 Cuckoo Clock ............for Jennae
"
Eskom
 Accident Free Days for Ngatia Display Unit....................Eskom
"
Jennae
 Acrobat Puppet for Jennae
"
Jennae
 Butterfly for Jennae
2008
 Indicator for Post Offices
"
Jo
 Rev Converter
2009
 Switch and LED Controllers for Post Offices
"
 Selector Units for Post Offices
"
 Teller Logging System.................Logs number of clients to Excel file
2010
 RFID Reader ...........Photo
"
 RF Display System........ used for ...........Dischem ..........+ ...........Indicators
"
 Voice Module for Display Systems ...................ISD 1730
"
 Supervisor System for RF Display Systems
"
 SMS Call System...............uses WINSMS
"
Len
 Bingo Program ..................for Len Farr .................available at ............... Free Games
2011
 Automotive Controller for LED Displays
"
   Runabout Robot + RF Handheld Controller .......Version 2................ Program written in "C"
"
   Restaurant Call System ................Excell Program with SMS
"
SMS Call System Integrated into Queue Systems
"
   ATM Remote Status Monitor using SMS Technology to call Custodians
"
   RX2A Transmitter Mod for Remote Status Monitors for ATM's
2012
   Built own Website at www.chrishegter.co.za
"
   Built LED Chaser . Generates Rotating Colour patterns by Controling Tri Colour LEDs ............Video
2013
   SMS Messengerused to send SMS alerts to any cell number when an event occurs
"
Ed
 Built Macro Focus Controller for Ed Wilson's Camera
2014
   SMS Controller.....used to send SMS alerts to any cell number when an event occurs Software .
"
Bev
 Laundry Database Program ............ For Beverley's Laundry.........Designed by Interface Technology .
2015
   Load Shedding Solution ......... Controller to turn on LED Strips ..... Battery supported
"
   USB Mouse Modification ......Automatically activates left mouse button every minute ... for Slotomania
"
   3D Porthole picture .... Uses touch switches to turn LED lights On/Off .......For Beverley and myself
"
   Touch Switch Circuit Board Circuit Board .uses circuit that detects AC hum from ones body...Unique circuit
2016
   Cash Register Restoration .......Model 349 ....dated 1913 ....Class 4000 .... 100Class
2017
   Morse Code Detector entered on Arduino and displayed on PC ............ Click for Video
2018
   Parking Sensor based on Arduino and Ustrasonic Sensor.................Click for video
"
   Robotic Arm using Servos and Arduino ................Click for Video
"
   Panic Switch ............can contact up to 8 persons by SMS................uses WIFI............Panic Switch............Inside Switch
1960
   3D Picture.............Original .......... was done in Oils..................Video
2018
   Webserver in a Matchbox............Video
"
   Touch Switch.......hh ................Detects AC hum from body ............. Touch Switch Board Vid ............Video
"
   IOT ............ (Internet of Things Demo) ............Demo Video
"
   Tile Sensor ............Video
"
   Robotic Arm .Video