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Power Control

Last modified 14 May 08

This is it:

A 100x75 mm small box. Has to be mounted in car flat like this for the gyro to operate.

This box contains two functionalities, GPS and Power control. It may or may not contain IBus interface. Any carPC system needs power control for a smooth, OEM alike operation. So you can buy this module from me tailored for your needs.

The 8051 System

In order to control some timing sensitive stuff and also to be able to control the PC from IBus events I've designed an 8051 system.

This CPU is standing by at all times supervising IBus events like opening the car with the remote key.

It also makes sure the PC gets enough time to shut down and does not enable the LCD before PC is up and running

The GPS+DR module

Since I was tempted to make my own pcb already, I was pushed over the edge when I found Trimble GPS module that has dead reckoning (DR) capability. This could be included in the design. To the right is the gyro required.

If installed in a BMW direction and speed is sent on IBus and has not got to be wired separately to box. If that is not the case direction and tacho inputs are added to design for you to use. Tacho must not exceed 3000 pulses/s.

The Module Design

Get partlist, view schematics, etc.

The Power Control SW

Get to know functionality

Statediagrams, input and outputs, etc.

Get One

There is no documentation apart from this site. You can buy pcb, component kits of different level, and complete and tested modules from me.

2 main functionalities, Powercontrol (PC) IBus or not, and GPS. Combinations are:

p&p not included. 25% ax included. email b_o_swing at hotmail.com.

Bill of materials with ordering info including prices