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1  Using Arduino / Microcontrollers / Burning bootloader to atmega8 using arduino UNO (v3) on: November 07, 2013, 07:42:50 am
i bought an atmega8 from the shop(its totally blank)
i want to write some arduino codes in that.
how do i do it?
(i have made the circuit using 2 capacitors and a 16mhz crystal. )
2  Using Arduino / Programming Questions / help with visual processing. on: March 24, 2013, 01:52:30 am
i want to try my luck at visual processing . i got no idea how to start.
but i can tell this.
cameras will send the live image to a computer.
the processing will be done by the computer, and serial data will be sent to the arduino .

now.
i am just school-goer. but i would really like to start with visual processing.
could anyone just give me a start with it?   
(my first project will be something like an obstacle avoiding robot using two side-by-side cameras)
3  Using Arduino / Programming Questions / Re: time elapsed funtion on: March 05, 2013, 02:20:29 am
ok. i am telling you what i need.

i need to trigger stuff(almost the same thing as a blink without delay) at certain intervals of time only.
the thing is, there are many trigger time value, so i want to make a funtion. 

i cant afford to delay the code .



p.s.
i have no clue about interrupts; would that be of any help in this situation ?
4  Using Arduino / Programming Questions / Re: time elapsed funtion on: March 04, 2013, 08:00:20 am
no, im sure i will be needing many reference times .
5  Using Arduino / Programming Questions / Re: time elapsed funtion on: March 04, 2013, 07:54:06 am
uhh.   
so you are telling me to make an object (or an array).

but that is not what i want .
is there absolutely NO workaround?
6  Using Arduino / Programming Questions / time elapsed funtion on: March 04, 2013, 07:32:43 am
i want to write a function that will check if the time(value passed to the funtion ) has elapsed or not.

for eg.

time_elapsed(3000); 

it should return true(1) after every 3000 milliseconds.

p.s.

this function will be called by many parts in the code, each checking for a different value of time. 

thnx in advance/  smiley
7  Using Arduino / Motors, Mechanics, and Power / Re: How to run motor in both directions, using just 2 output pins on: February 15, 2013, 11:09:57 am
nop, will not spend so much on a shield
8  Using Arduino / Motors, Mechanics, and Power / Re: How to run motor in both directions, using just 2 output pins on: February 15, 2013, 06:42:13 am
http://www.st.com/internet/analog/product/63141.jsp
9  Using Arduino / Motors, Mechanics, and Power / Re: How to run motor in both directions, using just 2 output pins on: February 15, 2013, 06:41:29 am
what about using the L293D ?

the ENABLE pins will always be HIGH(5 v source). to switch off the motors, i can use analogWrite(0)

is this idea going to work?
10  Using Arduino / Motors, Mechanics, and Power / Re: How to run motor in both directions, using just 2 output pins on: February 15, 2013, 06:18:54 am
so what do i finally do?
11  Using Arduino / Motors, Mechanics, and Power / How to run motor in both directions, using just 2 output pins on: February 15, 2013, 04:45:08 am
I want to run a dc motor, using just two output pins .

(I cant use a dpdt realy, and an h-bridge requires 4 pins)
{I just have tip 122, and I cant get any PNP transistors. }
12  Using Arduino / Motors, Mechanics, and Power / Re: controlling two transistors with same port on: February 13, 2013, 05:20:06 am
here is what it looks like
13  Using Arduino / Motors, Mechanics, and Power / Re: controlling two transistors with same port on: February 13, 2013, 04:58:40 am
i will post it soon, only if u can temmi if it will work or not .

(im planning to use 120ohms resistor)
what say?
14  Using Arduino / Motors, Mechanics, and Power / Re: controlling two transistors with same port on: February 12, 2013, 10:33:55 am
I know THAT . smiley-razz
but temmi will it work ?
15  Using Arduino / Motors, Mechanics, and Power / Re: controlling two transistors with same port on: February 12, 2013, 05:59:52 am
this is the diagram(the top two transistors will be connected to the same pin, and the bottom two, to another pin)
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