Autonomous Fire-Fighting Robot Project

[wcz]

I'm currently building a small fire-fighting robot.
I use Eltec 442-3 pyroelectric sensor to detect a candle.
I use Sharp GP2D02 IR sensor to measure distance n spot obstacles.
I face a problem in programming the Eltec 442-3 sensor.
For all your information, i'm using Motorola 68HC11 microcontroller to control the sensors. Besides, i'm more prefer to assembly language. However, if you have any other examples written in other languages, that will be fine.
Could anyone with experienced on this issue to give me some tips n advices?
Thanks for those who contribute.

 

[eblc1388]

Hi WCZ,

You have not told us what your problem is.

Look carefully at the block diagram by the manufacturer, they have the output and reference pin wrong.

 

[fsahmed]

R u by any chance from Pakistan?? & Is this a robot that is to compete in NERC 2005?

 

[wcz]

Actually, i have no idea on how to program the Eltec 442-3 sensor.
I need some idea on it.
Is it i can program it through A/D converter?

 

[eblc1388]

Extremely simple to use, this sensor requires no external components, only power and ground connections. The output is an analog signal (0-5V) which can be read by any microcontroller with a spare analog input pin.

The above is quoted from the Eltec 442-3 pyroelectric sensor description. You do not program the sensor. Instead you program the PIC A/D pin to read the output of the sensor and your software then decide on what to do next.

I'm not familiar with 68HC11 and don't know whether it has any A/D pins or not.

 

[wcz]

thanks a lot.
i will try do it myself then.
thanks.