From Concept to Market

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Case studies

Low Power

MEV have designed a number of in-house projects and customer projects around the Microchip PIC microcontroller. These are very low power devices and can be made to run off a CR2032 battery for months. Examples include


Although aimed at the energy management market, the Micrologger is a versatile instrument. Features include:

  • 4 pulse inputs
  • 1 sync pulse input
  • Serial interface (RS232 or RS485 or Meter Bus)
  • 128K on-board, battery-backed RAM.
  • It can log over 1 month's information
  • Retain that information for months

Used to profile energy consumption in large industrial sites, the Micrologger is a miniature, battery-powered, energy management logger. It can record power consumption from up to 4 pulse power meters for over a month and then be queried by a permanent serial interface or by a portable PC. The information gathered can be used to accurately profile site energy consumption enabling tailoring of site electricity billing.

The Micrologger is sold complete with a suite of energy management software by NewFound Energy Ltd..

Current To Frequency Converter

The current to frequency convertor will translate a standard 4 to 20mA analogue input to a train of pulses suitable for the Micrologger. This enables the Micrologger to be used to monitor analogue quantities.

Current to Frequency Converter
  • Frequency output 0 to 1 Hz
  • Loop powered
  • Isolated to 4 kV
  • Volt-free contacts

Agility Timer


Device offering timing facilities for dog agility and Flyball clubs.

Flyball is a dog sport in which teams of dogs race against each other from a start/finish line, over a line of hurdles to a box that releases a tennis ball to be caught when the dog presses the spring-loaded pad, then back to their handlers while carrying the ball.

Other Examples

We have many other designs based around the PIC either as the main component in a design or as an ancillary system used primarily for standby operations. Examples include:

  • Protocol convertor: A protocol conversion device allowing a PC to read information from a Manchester encoded data stream and send control information to a weather radar system via its USB port.
  • Vehicle tracking system: The PIC's low power requirements and extensive connectivity are particularly important in a vehicle tracking system developed for prestige cars.
  • UV Probe Calibrator: A hand held unit allowing the calibration of UV probes to be checked.
  • Boilerguard: A PIC based device that provides protection to gas boilers