atmega

Hi...

I have an atmega 32... I want to use all of the 3 interrupts... I got problems with INT2...

I set it up as a falling edge and via a 10K resistor put the button to ground...

while(bit_is_set(PINB, PB2));

_delay_ms(5000);

//init interupt

GICR |= (1<<INT0) | (1<<INT1) | (<<INT2);

sei();

the problem is that after the while... when the interrupts are initialized... the pull-up drops out...

Hi, well got my robot to follow light, to see if everything was working fine, but the weird thing is, instead of changing direction in real time, it only changes direction when i reset my arduino board, same thing happens if i watch the serial monitor.

for example

it prints out 500 to the serial monitor

keeps printing 500, even if i change the light source.

Hi guys.

from this post (http://letsmakerobots.com/node/5593 ) by Rudolph i learned that you can program an atmega with the arudino IDE even if you haven't got an arduino board.

What i have here with me now is an atmega328, a serial programmer (precisely this one: http://www.sparkfun.com/commerce/product_info.php?products_id=14 ).

I have thought about atmega + camera idea too, but for use on atmega not sending. I looked at CMUcam but it wasn't so low-cost as it was advertised (100$ it too much). I found http://www.robotshop.us/sfe-cmos-camera-640-480.html . It seems cheap, microcontroller friendly and so on. Only problems are - SMD connections, killer programming and impossible debuging.

So, all thoughts and good links are welcome.

I am making a line follower using an ATmega8

Now the problem is the testing of line follower, there is a black line over a white surface and then after a while, there is a white line over a black surface....

The robot will make a start on any of the corners...so it is  impossible to tell whether it is a white line or black line...and also in middle, the contrast will change...

I have to make the program in such a way that it will detect the change in contrast and continue its work

I thot this can be done in programming part..so posted here...

Hi all, I am new here and about to make a debut in robotics with a simple line follower robot.

I have chose AVR ATmega8 as my microcontroller because I found out that we can chose which pins we want as input and which ones as output. So this seems pretty cool for a microcontroller. Also i figured out that it is cheaply available here.

G'day everyone. I have been asked to do some consultancy work for DAGU electronics and need to learn the atmega processors ASAP. I can design the hardware ok but will need some help with the software. My first concern is can an Arduino control 8 servos?

I want to try and have the polymorph caterpillar running off of an Arduino processor in a week ! :0

After a quick panic, I regained my senses and did a site search. Ok an Arduino can control 8 servos but I will still need help.

Any suggestions on on software libraries? Can anyone translate picaxe basic into C?