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Range of design and prototyping services
Standalone data loggers to customised specifications
PC-based on-line data loggers to customised specifications
Radio-linked remote sensing and control systems
Sensors implementation

Key technologies
Microchip microcontroller for standalone applications
Low power electronic components for standalone applications
Desktop PC or embedded PC (PC104) for PC-based on-line loggers
Radiometrix exempt-free radio linker for remote sensing and control systems
Programming in VB / VC  / DOS TP /  Delphi and PIC programming

Track Records
Electrical power controller system - Manchester University
On-line PC data logging system for lab experiments - Manchester University
Standalone subsea motion logger - 2H Offshore Engineering Ltd
PC on-line optical heart beat rate monitoring system - Plymouth University
Standalone optical heart beat rate monitoring system - Plymouth University
Standalone data logger for porpoise detection - Chelonia
Standalone data logger for PH measurement - Ruthern Instruments
Standalone voltage and current logger - Cableform Limited
Standalone event logger for monitoring voltage spikes - Cableform Limited
Transient pressure recorder - LB Europe
Radio caller identification system - Lynxpro Limited
PC Radio remote temperature logging and indication system - Electro Nite
Remote control and data acquisition - Radiometrix Limited

Publications
RS232 24-line versatile I/O card, Pei An, ETI, October and July, 1994
Smart mains controller, Pei An, ETI, August and September, 1994
Computer mobile robot, Pei An, ETI, January, 1995
Catching data from lpt1, Pei An, Electronic world, February, 1995
Personal computer stepper motor controller, Pei An, Electronic world and wireless world,
Heart beat rate monitor, Pei An, ETI,March, 1996
8031/80535 single board computer, Part I to V, Pei An, ETI, May-September, 1996 (5 articles)
Computer radio control for the home Pei An, ETI, Volume 26 Issue 11, 1997
High-speed analogue in, Pei An, Electronic world, January, 1997
Centronic mini-data lab, Pei An, ETI, Volume 26, No. 2, 1997
Game port data logger, Pei An, Electronics and beyond, October, 1997, No. 118
Programmable Centronic 24-line I/O card, Pei An, Electronics and beyond, April, 1997, No. 112.
Programming silicon floppies, Pei An, Electronic World, August, 1999
Analogue input without wires, Pei An, Electronic World, January, 1998
Standalone data logger, Pei.An and PinHua Xie, Electronics World, March, 1998
Standalone event logger, Pei.An and PinHua Xie, Electronics World, July, 1999
RS232 radio link, Pei An, Electronic world, May, 1996.
Thermocouple logger, Pei An, Electronic world, January, 1999
Single chip sound recorder, Pei.An, Electronics and Beyond, December, 1999
One IC stand-alone temperature logger, Pei.An, Electronics World, January, 2000
Radio Linked audio message player, Pei.An, Electronics and Beyond, Feburay, 2000
RS232 Radio link, Pei  An, Electronics World, June, 2000