Hardware : Lane Supply Controller with timer | ||||||||||||||||||||||||||||||||
This page describes a lane power supply
switch. It allows to switch on/off the lane power from the computer. 2 lanes. All schematics have been built with Eagle. Eagle project files are available thru a mail request. The lane supply controller circuit allows to controller each lane power supply from the PC using the parallel port.This system is used to switch on/off power supply on lanes during a staggered race or to switch off power supply just after a bad start. These designs are free of charge for personnal use purposes only. Contact support@uracerweb.org for any commercial use of the designs. Download Eagle project.
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Lane supply controller
Schematic : Placement PCB Real PCB size : 65mm x 55mm Part list :
External connections :
Detailed description : The lane relay is by default connected on the 'on contact status relay' in order to be able to play even when the computer is down (!!!). The computer system should put the parallel port interface pin on 'off status' to switch off power supply on the lane the switch is connected. Example for relay K1 (same for relay K2) : If you play with Ultimate Racer the pin number you solder the PC_CMD output should be specified in the hardware parameters. Ex : if a controller is soldered on pin 5 on LPT1, specify it as follow :
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