Analog to digital converter

[pasawphaw]

After reading the 10 digits from 18f452....i dnt know how to make use of the 10 bits to decide whether to initiate an interrupt or not.......pls help me with it

 

[Nigel Goodwin]

Why would you want to?.

 

[philba]

A most confusing question - digits or bits? I presume you meant bits in both cases. I think you don't understand what the term interrupt means. You don't initiate an interrupt - some external mechanism does.

Maybe your question is simply about how to use 10bits of data on an 8 bit machine - toss away the lower 2 bits - left justify and take the adresh value.

But in any event, I'd review your next question carefully so that it makes more sense.

 

[pasawphaw]

nigel goodwin

currently i am working on a sensor for a sumo robot!
the sensor only produces analog output. So, from that i will have to decide the direction of the movement of the robot.Pls give me some advice!!
Thanks

 

[Nigel Goodwin]

Simply read the sensor, then decide what to do based on it's value - there seems no need (or use) for interrupts.

 

[pasawphaw]

motor

can u give me a good source of to learn motor control software !!

 

[Nigel Goodwin]

What sort of control are you looking for?.

 

[pasawphaw]

motor control

i already have built an H bridge with mosfets... what i have to do now is to program using pic 18f452 with pwm. but i am pretty lost.
Thanks for ur help!!

 

[Nigel Goodwin]

I've not done it with an 18F series, but if you check my tutorials there's an example of two channel PWM using a 16F876, it should be simple to use it with an 18F series chip.

 

[biboy]

hi, Nigel.....it seems you're an expert on robotics.....i really wanted to build a simple robot as a starter...a robot that will move backward when it senses something that obstructs its way....what are the materials needed....the SW and HW...and what are the procedures to follow....i know some theories about analog and digital electronics...we build simple digital electronics circuits before...we have been lectured on microprocessor programming...but we haven't had the idea to put it in practice.......thanks in advance..

 

[Nigel Goodwin]

You might have a look at one of my websites at which has a simple robot based on the magazine robot Cybot.

 

[pasawphaw]

delay

hi,
i want to write a delay subroutine for 5s.Though i tried it with stopwatch simulator, the time doesnt synchronized with real time.Can i get a solution for that?

 

[pasawphaw]

pcb

hi,
i am currently using power pcb software to fabricate a pcb. my problem is that i want to connect the circuit board with power by a molex connector. so ,i place a connector instead of power and ground. Then, it shows error.I needed to replace it back with power and ground symbols.So,i will have no connector when i fabricate........i dnt know how to do that.pls help with this.
Thanks

 

[philba]

ok, 2 suggestions:

1) start a new thread for unrelated questions
2) place the connector and connect it to power (Vcc??) and gnd. I would guess your software expects to see gnd.

 

[sci-3d]

My opinion, If you use Servo motors it is will be easier.
I guess that you adc to connect with distance sensor to measure the your enemy robots, this not interrupt. You should poll this sensor every time as possible.