Adam Conway
  • Male
  • San Jose, CA
  • United States
Share Twitter

Adam Conway's Friends

  • Jack Crossfire

Adam Conway's Discussions

Link Budget for Xbee

Started this discussion. Last reply by Adam Conway May 25, 2010. 1 Reply

Hey Folks,I was curious about the Xbee range in free space.  I put together a spreadsheet with a derivation of the Friis Equation (somebody check my work if they get a chance).  I know very little…Continue

Tags: xbee, xbee_distance, xbee_range, friis

To RTF or not to RTF...

Started this discussion. Last reply by Adam Conway May 24, 2010. 10 Replies

The only thing worse than a noob asking a boring question is a cheap noob doing the same... I am buying an easy star (shocker, I know) and looking at the RTF kit, I have a bad feeling that I am…Continue

 

Adam Conway's Page

Latest Activity

Adam Conway commented on NORMAN SANCHEZ's photo
Thumbnail

octa x8 photos coaxial configurations.

"Is this just new to me, or is it new to everybody?  I am looking at building my first quad (have a plane) I would love to be able to tweak the airframe to get a Octa Quad (also OctaQuad sounds a lot cooler than just quad). "
May 28
Adam Conway commented on Chad Frazer's blog post G-force Reduction for Electronics in Crashes.
"I like your idea but I think in solution 2 the liquid will only act as a damper, not a spring.  I would think you would want both. You give the human brain as an example, but the human brain is very susceptible to long duration shocks because…"
May 24
Adam Conway commented on Ruwan's blog post Computing power on a multirotor.
"I have a couple Fit-PC 3s that I have for work.  They are okay, however Foxconn sells a tiny nettop based on the E-350 which is much faster and more modern (and 1/4 the price!) "
May 23
Adam Conway commented on Chris Anderson's blog post Pictures from 3D Robotics at Maker Faire
"Chris will the video of the talk available?  I was there for a moment, but my 4 year old was done at that point and I could not stay. "
May 22
Adam Conway replied to Brian Perkins's discussion Bixler Weight and Balance
"there are control horns that screw through the control surface, however enough crashes (yes I crash a lot) and it will rip off the whole control surface :)  enjoy."
May 21
Adam Conway replied to Brian Perkins's discussion Bixler Weight and Balance
"I removed the washers and stuck the 2200 mAh battery up there and it flies very nicely.  This also has the added benefit that if you nose dive repeatedly into the ground less of the front crushes because the weight is already there."
May 21
Adam Conway commented on Chris Anderson's blog post Wired: "Why Arduino is a Hit With Hardware Hackers"
"I agree completely. The previous darling - in my eyes - was the PIC, they were cheap, flexible (similar architecture), had a great IDE and lots of cheap programmer options. The problem was that it was assembly based, and while the instructions were…"
Jul 7, 2010
Adam Conway commented on Chris Anderson's blog post Wired: "Why Arduino is a Hit With Hardware Hackers"
"I think they missed a pretty big point in the article and that is that Arduino is "good enough". Arudino is often used to control things that "do stuff" as an old prof of mine, Ed Carryer, used to say (I bet there are a few of…"
Jul 6, 2010
Adam Conway commented on John_NY's blog post Multiplex Easy Star UAS Configuration
"This is more a response to Jason's comment than to the blog, but hopefully is useful to everybody making the remote decision. I have received advice to get the Futaba 7C, Is there a cheaper alternative. I know that the Futaba EX6 is also spread…"
Jun 25, 2010
Adam Conway commented on Robero Navoni's blog post ArduCopter Hexa First outdoor test
"Ah makes sense, thanks!"
Jun 22, 2010
Adam Conway commented on Robero Navoni's blog post ArduCopter Hexa First outdoor test
"I fear that I am asking a stupid question, but what is the benefit of 6 fans over 4?"
Jun 22, 2010
Peruzatto commented on Adam Conway's blog post XBee range calculations
"Thanks!"
Jun 16, 2010
Fab - Arduino for Visual Studio commented on Adam Conway's blog post XBee range calculations
"ok"
Jun 16, 2010
Adam Conway commented on Adam Conway's blog post XBee range calculations
"By the way, I was off by an order of magnitude, I meant to write a BER of 10^-3 is 1 in 2 frames."
Jun 15, 2010
Fab - Arduino for Visual Studio commented on Adam Conway's blog post XBee range calculations
"Excellent, appreciated thanks"
Jun 15, 2010
Adam Conway commented on Adam Conway's blog post XBee range calculations
"One thing to know, as you get lower than a SNR of 5 on an XBee you don't lose connectivity, but the Bit Error Rate (BER) spikes. Fortunately the protocol is resilient enough to retransmit if there is a CRC error or an ACK is missed. So if you…"
Jun 15, 2010

Profile Information

About Me:
I run product for a Wi-Fi Startup called Aerohive, by day.
Tell us a bit about your UAV interest
When I was in grad school and after I did a lot with autonomous systems, but career got in the way and I ended up in Marketing... Anyhow, I have never lost my love of building stuff, especially stuff that do things without human interaction.
Hometown:
San Jose

Adam Conway's Blog

XBee range calculations

Posted on June 14, 2010 at 10:14pm 7 Comments



I originally posted this as a discussion but given the new guidelines for posting, I thought I would post it as blog. Also anybody who saw this before will find that I discovered a few important things (like the minimum SNR for zigbee). The spreadsheet that I created I left this as an editable Google Docs sheet so please don't save as you play with it.



With this spreadsheet you will find that in some cases it would be possible to transmit 10km, with the right antennas… Continue

Microsoft releases DIY robotics development suite

Posted on May 21, 2010 at 7:20am 7 Comments

How cool would it be to be the guy at Microsoft whose job it is to build robots all day. Microsoft apparently released a tool set to build robots on the .NET framework.

The good news is that it is free. The even better news is that it only runs on Windows

link

Comment Wall

  • No comments yet!

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

Contests

Season Two of the Trust Time Trial (T3) Contest has now begun. The third round was a reliablilty/aerial photography round for both planes and copters, which is now closed. Stay tuned for the next round, beginning soon.

A list of all T3 contests is here. 

 

Top Content 

1 What do you think the APM should do on fail safe

What do you think the APM should do on fail safe
2 ArduCopter 2.5 released!

ArduCopter 2.5 released!
3 Housekeeping note: Kevin Finisterre

Housekeeping note: Kevin Finisterre
4 Hexa-copter found after failed attempt of delivering cell phones to inmates of a Brazilian penitentiary

Hexa-copter found after failed attempt of delivering cell phones to inmates of a Brazilian penitentiary
5 Control Software

Control Software

Groups

© 2012   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service