Let's Make Robots!
Hi guys, this is my current project, i thought the programming would be easy, but since i havent used my arduino for months, it's not going so well, lol. Well … Read more

Peculiar ldr problem...

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.

Still thinking about the name - bot

Hi LMR, been thinking about this robot... for the chassis, i will be using a nitro car chassis, and going to bend it the shape i want, its 2mm pink anodized aluminium(they didnt give colour choices lol)

will be using the tamiya dual gearboxes, havent used them before, so if they aren't what i expect i'll will have to get something else xD 

 

here's some skecth uping of what i expect to have:

robot3.jpg

 

 

 

Arduino + a doorbell's wireless modules

hello, hope you had a merry christmas, and will have a happy new year!

I found a wireless doorbell, and i would like to know it it would be possible to attach the button of the doorbell, to the TX pin on the arduino, and the receiver to the RX pin, sorta like this:

doorbell.jpg 

I think i would then be able to serial print what ever i want, and serial read it with the other arduino. say controll severall motors, even if it just has one button, would this be possible?

Xbee modules help

HI, well, the free day is arriving, so i thought i'd go to sprakfun and fill my cart.

what exactly do i need to have wireless COM betwen two microcontrolers, or PC, to micro controller, or even stand alone Xbee's?

I have these items in my cart:

Can i control a servo with a 555 timer?

Hi,

I would like to sweep a servo back and forth, and theres no point on using the arduino for this, and thats all i have at the moment, so if i supply 0v to the yellow wire on the servo(signal) and then supply it with 5v, then 0, then 5v again.... would it sweep the servo? or does it have to be modulated?

 

ty