Author Topic: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!  (Read 2302 times)

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Offline intwizsTopic starter

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*URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« on: July 04, 2009, 11:22:33 AM »
http://www.societyofrobots.com/member_tutorials/node/55

This is the robot I'm making. But the problem is that the 14-pin MCU (PIC 16F616 is out of stock here in India. And i didnt manage to find the QRB1113 Sensors as well.....

and the ultrasonic sensors i bought didnt come with any manual.....they're just too bulbous looking things.....


where am i supposed to go from here....
please help me out....
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Offline airman00

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #1 on: July 04, 2009, 02:56:28 PM »
You can write a new program for a different microcontroller.
Can you provide a link or a picture of the ultrasonic sensors?
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline Soeren

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #2 on: July 05, 2009, 02:10:14 AM »
Hi,

Why are you nervous?
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #3 on: July 05, 2009, 05:28:46 AM »
lol is tat relevant?
http://societyofrobots.com/member_tutorials/node/84

check out tis MCU
i decided to buy it online...but there are different types.....

http://www.microchipdirect.com/ProductDetails.aspx?Catalog=BuyMicrochip&Category=PIC16F616&mid=1&treeid=1

I/P, E/P, E/ML, I/ML, I/SL, E/SL, E/ST

inshort....this is the first time im using an MCU......wich one do i need to buy?
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Offline galannthegreat

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #4 on: July 05, 2009, 06:35:11 PM »
You'll just need to stick with I/P.
Kurt

Offline jamort

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #5 on: July 06, 2009, 02:14:32 AM »
why are all your questions *urgent* when there standard questions?    :P   :P  :P
my english teacher once said, "dont talk about what you dont know in public...."

so I replied the truth, " Exactly why I dont ever talk about English."

Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #6 on: July 07, 2009, 03:29:50 AM »
CUZ IM COORDINATOR FOR THE ROBOTICS EVENTS AT MY COLLEGE, BUT I CANT ENTER EM
IM PLANNING TO ASK MY FRIENDS FROM OTHER COLLEGES TO COME AND WIN WITH THE BOTS WE'VE MADE TOGETHR....SO THAT WE'LL GET ALL THE PRIZE MONEY
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Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #7 on: July 07, 2009, 03:39:41 AM »
heres the picture u asked for
pls temme wat to do wid em...i dont hav ne clue of how to set up an interface...
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Offline SmAsH

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #8 on: July 07, 2009, 03:48:11 AM »
search around for an ultrasonic sensor schematic...
there is one thats going around that needs a 555 timer...
i was looking at it yesterday... i was thinking of getting a pair of those things too ;D
Howdy

Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #9 on: July 07, 2009, 03:57:22 AM »
can u please send me a link or somethin?
i need a circuit to interface the sensors with my MCU and the servos....
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Offline SmAsH

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #10 on: July 07, 2009, 04:32:51 AM »
well, there is http://www.hexamite.com/he240txrx.htm which is the basic idea... but then you will have to code it..
first figure out the speed of sound, then you will be able to find out how close objects are with an equation.
Howdy

Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #11 on: July 07, 2009, 06:19:10 AM »
i dont need a sensor....i already have the ultrasonic sensor, i need a suitable circuit to interface it with...
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Offline SmAsH

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #12 on: July 07, 2009, 06:28:57 AM »
that is a circuit... but your mcu will have to do the equations to figure out the distance to any objects...
Howdy

Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #13 on: July 07, 2009, 06:37:53 AM »
lol....i need to make the circuit?

is an ready made one available? im indian, currency rate wid USD is
45rs. =1 dollar
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Offline SmAsH

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #14 on: July 07, 2009, 06:40:23 AM »
yes, you will have to make the circuit.
if you want a premade circuit, why not just buy the sonar sensor? will it really be that much more?
Howdy

Offline intwizsTopic starter

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Re: *URGENT* IM NERVOUS...nd in dire need f HELP!!!!
« Reply #15 on: July 07, 2009, 06:42:22 AM »
yeah....it costs a lot more online.....i got just those sensors u see in the pic for cheap, they're not available in a ready made module in shops here....the ones that are available online are costly...
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