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[on:]

Just wanted to say "Hi" and am eager to get going with some real projects for my Uno.
My first project is a mini turret...more of a hobby project than anything really useful, but it will make a fun little desktop toy, and give me an excuse to experiment with some PIR sensors.

Regards!

I will post some pics later

[Reply #1 on:]

So here is a link to the rendered turret.

http://myblogduino.blogspot.com/2010/12/turret-project-2-servos-pir-turret.html

If I'm lucky, I will have parts to bolt together this weekend

[Reply #2 on:]

The turret looks pretty cool. Did you design it and order it online somewhere or are you going to make these parts per your design??

[Reply #3 on:]

Thanks! I just sketched it up in inventor. I guessed at what it should look like. Mostly, the driving factor is mounting 2 futaba S3003 servos.
I don't know what will be mounted in the end, but the first thing will be a PIR array for testing.

[Reply #4 on:]

So, here is a photo of my super cheap/simple Ir sensor. I am going to make 4 and then have an single independent transmitter IR source.



*Not sure if I am going to need an Op Amp...but don't care right now!

[Reply #5 on:]

I finally got my lasercut parts  

Here is a peek

http://myblogduino.blogspot.com/2011/01/sneak-peek.html

[Reply #6 on:]

I couldn't wait, so I formed the parts up, and sprayed them.
Looks just like the rendering

http://myblogduino.blogspot.com/2011/01/first-stage-done.html

[Reply #7 on:]

Looks great! What materials did you use and where did you get them fabbed?

[Reply #8 on:]

Thx! It's gauge steel, and I know somebody who does laser cutting and they can sneak small parts every now and then

[Reply #9 on:]

Looks impressive so far Mr_Manny.

[Reply #10 on:]

Can I ask you a thing about the futaba s3003? With a bit of try and error I ended that they go, in microseconds, from 500 to 2400. Have you ever tried?

[Reply #11 on:]

QUOTE; Can I ask you a thing about the futaba s3003? With a bit of try and error I ended that they go, in microseconds, from 500 to 2400. Have you ever tried?


I thought of using the pwm method, but the Arduino library makes it easier to just define the angle.

I guess I am going to need to make a sensor with an amplifier afterall.
My serial output reads 1023 with no light source, and with the brightest light, I can only get it down to the low 900s. I will definitely need to make it more sensitive for it to be functional.

[Reply #12 on:]

Ha!  I guess nobody noticed, but I had my IR phototransistor backwards!
Now that I fixed it, I get serial readings ranging from 1023 to 27 using a simple light source which should make it usable for my project without adding a transistor to the circuit. *cross fingers*

[Reply #13 on:]

Ok, so now I made a pair of IR sensors to test with the servo, and so far seems like it all works fine! I breadboarded everything together, but couldn't mount the sensors on the servo yet, however, the servo responds to variance in light shining on the IR phototransistors.

a pic is in the link:

http://myblogduino.blogspot.com/2011/01/proof-of-concept-works.html

[Reply #14 on:]

Looking good.  Puts my first Arduino project to shame