"And then I look at the dates, did you do this?"
Brett W's Discussions
Piper Arrow II UAV Project
Started this discussion. Last reply by bGatti Oct 15, 2008. 18 Replies 0 Likes
Brett W's Page
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IceFyre13th commented on Brett W's blog post Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)IceFyre13th commented on Brett W's blog post Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)"Count me in, this is a great idea.
and why I joined the site"
Brett W commented on Dimitar Kolev's blog post New ST AHRS(s)?"Has anyone received a copy of the code or thesis paper? I still haven't... (rc@woollum.com)
Just curious."
Brett W commented on Dimitar Kolev's blog post New ST AHRS(s)?"Peter, I'm interested in your thesis project. Can you send a copy to rc@woollum.com?
Thanks!"
bGatti commented on Brett W's blog post Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)"Here's some ideas:
Stackability - use 2 ESC to drive a single motor from two batteries for redundancy.
Substitute solar cells/ 1 battery for solar planes; substitute 1 battery 2 coil for redundant windings.
I imagine a serial port is lighter…"
Brett W commented on Brett W's blog post Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)"Hi Tim,
I was planning to implement the first three already. The current draw will be both reporting as well as automatic limiting to save the ESC from damage."
bGatti commented on Brett W's blog post Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)"Brett Sorry I wasn't more clear,
Here the issue: It's Open Source 101
OS can provide value if there is a IP premium in the closed product.
Unfortunately (or fortunately), the current IP premium on ESCs is sub-zero. By my estimation - you…"
Brett W commented on Brett W's blog post Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)"I agree and that would be how this was released. Open source is key! Of course it's AVR-based so if you know how to program AVR's you can program these ESC's. The ISP header is broken out so it's easily accessible as well."
Brett W's Blog
Gauging Interest: 4 Channel ESC for Brushless Motors (RS232/PWM/I2C + Atmel AVR's!)
Posted on March 10, 2010 at 5:07pm 29 Comments 1 Like
I am designing (and may soon produce) a 4 channel electronic speed controller (ESC) for brushless RC motors.
The Problem
It seems as though everybody who builds a quadcopter uses 4 individual PWM ESC's (that are often zip-tied to the rotor arms).
http://ng.uavp.ch/moin/UserCopters…
Continue
The Problem
It seems as though everybody who builds a quadcopter uses 4 individual PWM ESC's (that are often zip-tied to the rotor arms).
http://ng.uavp.ch/moin/UserCopters…
Continue
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