Micro Processor Based Mk2 Speed Controller

This speedcontroller utilizes the PIC16C71 micro-controller from
the Arizona Microchip range and has a lot of new features compared
to the "speed controller Mk1", speedv1.zip.

Specification

	6 - 12 Cells
	40+ Amps  
	Input signal range 1.2 - 1.8mS
	35x59x15mm   
	Weight 40grams (without leads)
	Microprocessor Controlled               High Frequency Switching (1khz)
	BEC                                     Switch selectable BEC cut off voltage
	In flight re-settable BEC cut off       BEC disable jumper
	Fail Safe Motor cut off                 Two throttle response curves
	Max power LED                           Motor off / Brake on LED  
	Timed Motor EMF braking                 EMF brake disable
	Transmitter motor arming                On board arming button
	Soft start/stop switch option

By Ken Hewitt

Originally Published in 
Radio Control Models and Electronics Sept 95

ken@welwyn.demon.co.uk