Mitch Patenaude
Mitch Patenaude
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  • Newark, CA
  • United States
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Mitch Patenaude's Discussions

L293D vs SN754410NE

Started this discussion. Last reply by Mitch Patenaude Nov 3, 2009. 2 Replies

RC mode detection flaky

Started this discussion. Last reply by Thomas J Coyle III Jul 11, 2009. 2 Replies

Help making the female to female cables

Started this discussion. Last reply by Mitch Patenaude Jun 29, 2009. 3 Replies

 

Mitch Patenaude's Page

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Mitch Patenaude replied to Mitch Patenaude's discussion 'L293D vs SN754410NE'
The SN754410NE also seems a bit cheaper. The pinouts look the same, so I assume it's a drop-in replacement.
Nov 3, 2009
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Chris Anderson replied to Mitch Patenaude's discussion 'L293D vs SN754410NE'
The new one can handle more power. Both work, but the SN754410NE has more safety overhead.
Nov 2, 2009
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L293D vs SN754410NE

For the motor contorller (quad half-h driver) I notice in the shipping kit and in the published schematic, you use the L293D, but in the parts list you mention the SN754410NE. Why did you switch? Was there a problem with the SN754410NE?Thanks,-- MitchSee More
Discussion posted by Mitch Patenaude Nov 2, 2009
2 Comments
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Thomas J Coyle III replied to Mitch Patenaude's discussion 'RC mode detection flaky'
Mitch, There is one thing you can do if you want to spend around $20. That is to buy a receiver servo simulator: ( http://www.lynxmotion.com/Product.aspx?productID=466&CategoryID=113 ). It allows you to generate a servo PPM signal from ~1 ms…
Jul 11, 2009
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Reto replied to Mitch Patenaude's discussion 'RC mode detection flaky'
Check out (and recheck) each single wire with a multimeter. The Rx has to be plugged for the RC modes, else you'll have random behavior. Also check out your board with a lens to look for solder hairs eventually cross-connecting solder points.
Jul 11, 2009
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RC mode detection flaky

I'm having a problem where it is very flaky about detecting RC mode.There are cases where no receiver is connected and it goes into RC mode, and cases where there *is* a receiver connected and it doesn't. It seems to be almost random about whether it detects correctly.This might be because I got tired of waiting for delivery of the female-female (or male-male the way the RC world talks about them) cables and instead took extension cables, cut the wrong end off, and soldered them directly to the…See More
Discussion posted by Mitch Patenaude Jul 11, 2009
2 Comments
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Mitch Patenaude commented on Chris Anderson's blog post 'Instructions for using BlimpDuino'
I have a problem where it isn't consistently recognizing RC mode. The code looks to be averaging "channel 1" position, but it seems to be an int timer which counts clock interupts, and since the running average only has to get to 1,…
Jul 1, 2009
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Mitch Patenaude replied to Mitch Patenaude's discussion 'Help making the female to female cables'
I am interested in how you would convert, but it's a moot point for the moment. I already had a couple of extension leads that I was trying to solder new connectors on.. what I ended up doing was removing the header pins from the two servo…
Jun 29, 2009
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Nick Sargeant replied to Mitch Patenaude's discussion 'Help making the female to female cables'
If you haven't already ordered i would suggest ordering these. 10 servo leads for $5 delivered is hard to beat. With a scalpel and pliers i found they can easily be converted to Female to Female cables. Ill post pics if you are interested. Nick
Jun 29, 2009
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Mitch Patenaude replied to Mitch Patenaude's discussion 'Help making the female to female cables'
I feel like a bit of an idiot.. it looks like two of these are what I want: http://www.sparkfun.com/commerce/product_info.php?products_id=9187
Jun 28, 2009
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Help making the female to female cables

After being unable to find them on the web or in the local hobby shops, I'm trying to make the female to female patch cables used to hook the radio receiver up to the board, and I'm a little confused, and probably out of my depth.I ordered some female connectors on ebay, but apparently I didn't understand what female connectors are, because I got only what I thought of…See More
Discussion posted by Mitch Patenaude Jun 28, 2009
3 Comments
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Mitch Patenaude commented on Chris Anderson's blog post 'BlimpDuino home page'
I'm thinking that using 4 of these sensors rather than the ir detectors would make for some interesting behavior. I would probably need to tweak the code for the slower readout rate.
Jun 22, 2009
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Mitch Patenaude replied to JONATHAN's discussion 'Another inexpensive scratch built UAV'
I would love to see a youtube video of how you work with that foam. Do you use a hot-wire cutter, or just a regular knife? How much tape do you use to strengthen the foam?
Jun 21, 2009
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Mitch Patenaude commented on Chris Anderson's blog post 'Other things you'll need to complete your BlimpDuino kit'
I hope you'll excuse all the questions. I'm somewhat new at this. The 300mAh 2S lipoly packs I can find in local hobby stores aren't balanced, but I'm not sure how much difference it really makes. Should I hold out for the…
Jun 21, 2009
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Mitch Patenaude commented on Chris Anderson's blog post 'Other things you'll need to complete your BlimpDuino kit'
What about the voltage? Will the switching regulator on the board handle 11 or 14 volts? will the motor controller?
Jun 20, 2009
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Mitch Patenaude commented on Chris Anderson's blog post 'Other things you'll need to complete your BlimpDuino kit'
The pack you mention is on backorder everywhere I look. Would this battery be an acceptable substitute? it's slightly heavier (22g vs 19.5g for the other one) but otherwise has similar characteristics, though the form factor is somewhat…
Jun 20, 2009

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