David's Discussions
Brushless and ESC help
Started this discussion. Last reply by Sebastian Boehm Apr 13, 2010. 25 Replies 0 Likes
ESC programming
Started this discussion. Last reply by David Sep 11, 2008. 2 Replies 0 Likes
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Sebastian Boehm replied to David's discussion 'Brushless and ESC help'
most ESCs can't run the motor in two directions. if you send 1ms pulses the motor does stop, if you send 2ms pulses the motor will run at 100% speed.
I have programmed motor controllers using PWM, so if you need help, just ask me.
BUT: there…
Alex Cendejas replied to David's discussion 'Brushless and ESC help'
Thanks for your help guys, I think I finally got it right. The three cables do go to Power, Ground and the control signal, which must be a PWM from 1 to 2 ms I can generate with a microcontroller. I investigated a little bit more about the reverse…
Thomas J Coyle III replied to David's discussion 'Brushless and ESC help'
Alex,
You are going to need a servo driver like this: www.lynxmotion.com/Product.aspx?productID=466&CategoryID=113
to control the brushless motor through the ESC. The servo driver will provide PWM from ~1 ms to ~2 ms. You can use the servo…
Alex Cendejas replied to David's discussion 'Brushless and ESC help'
Hey, well I'm talking about a brushless motor ESC... I saw a picture of it showing how it must be wired up and it has 2 cables going to the battery, 3 cables for the motor, 2 cables to an ON/OFF Switch and then 3 cables which I assume are the…
Andre S replied to David's discussion 'Brushless and ESC help'
Hi Alex,
are you sure you are thinking of the same type of ESC the others were talking about? Based on my limited RC experience I'd say that an ESC has 3 cables connecting to it, ground, power and the signal, where if the ESC has a BEC then it…
Alex Cendejas replied to David's discussion 'Brushless and ESC help'
Hello, I know this post is quite old and maybe you won't answer but I still have to try.
I'm a mechatronics student and I'm currently working on a kind of important project. A few weeks ago I learned about brushless DC motors and…
David replied to Chris Anderson's discussion 'Discussion forum for Sparkfun 3-axis IMU-based autopilot board'
Hi, Bill:
So if I connect ESC to Radio 1 and connect the Rudder and Elevtor servos to Servos 1 and 2 on the UAV board, I should be ok to modify the code and to drive the servos, is that right?
Thanks
David replied to Chris Anderson's discussion 'Discussion forum for Sparkfun 3-axis IMU-based autopilot board'
Hi, Bill:
If I want to modify the firmware in UAV board WITHOUT connecting RC receiver to the board, can I use ESC to power UAV board directly? I mean to connect +5V and GND of ESC to the VCC and GND on the board. I have a 3s Lipo battery (11.1V)…
Comment Wall (1 comment)
- At 11:50pm on November 3, 2008,
Shoaib Mohsin said… - i am trying to built a Quad Rotor UAV. I need some help regarding the interfacing of microcontroller and ESC to control the various speed settings of brushless motors.
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