MR60

Power for analog pins (servos for roll/tilt, sonar, etc)

Hi,

On a 3DR quad arducopter, I am powering the APM2.5 with JP1 off and using the 5v input from the 3DR power module BEC (connects through the voltage measurement port).

This powers , If I understood correctly, all of the APM2.5 boards including the Analog I/Os pins and the input pins.

The maximum power delivery of the 3DR power module is 5,37V x 2,25 Amps. I wonder if this will be sufficient power if I connect two servos for the roll/tilt camera stabilization on the Analog I/o pins number 10 & 11 ?

If this is not enough power, how can I feed more power to these analog pins ?

 

Tx for help and experience on this,

Hugues

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • MR60

    Thx a lot that makes it clearer.

  • Hugues,

    I power the camera stabilization servos from a separate ESC - APM is pwered, like you, from the 3DR power module.  I also filter the +5v with a 50 uf and a .1 uf cap for good measure., but you probably don't need to.  Not worrying about my servos affecting the APM in any way just gives me peace of mind.  As Bll said, I take just the signal and ground line from the APM and add the +5v from a separate ESC in a home made circuit board with the caps.

    Cheers.   

  • Developer

    I think you will have enough power. The APM is drawing unto 500mA max, the servos draw that much each when moving ie. add 1A, so you 725ma to spare. If you want a supply with more capacity, you will need not to connect the middle pin and supply the 5V from a separate BEC (aka regulator). you will only need to connect the signal line and GND from the analog connection. (you always need a common ground)

This reply was deleted.

Activity

DIY Robocars via Twitter
May 15
DIY Robocars via Twitter
May 14
DIY Robocars via Twitter
May 13
DIY Robocars via Twitter
RT @f1tenth: Say hi to our newest #F1TENTH creation for @ieee_ras_icra next week in Philly. It’s going to be huge! 😎 🔥 @AutowareFdn @PennEn…
May 13
DIY Robocars via Twitter
May 11
DIY Robocars via Twitter
May 8
DIY Robocars via Twitter
RT @SmallpixelCar: Noticed my car zigzagged in last run. It turned out to be the grass stuck in the wheel and made the odometry less accura…
May 8
DIY Robocars via Twitter
RT @SmallpixelCar: Test my car. RTK GPS worked great. Thanks @emlid for their support. https://t.co/EkQ6qmjmWR
May 8
DIY Drones via Twitter
RT @chr1sa: @kane That's @diydrones circa 2009. Still have a box of those Canon cameras that we used to strap into planes, just like this.…
May 3
DIY Robocars via Twitter
RT @chr1sa: Our next @diyrobocars race is going to be outside at a real RC racetrack in Fremont on May 28. Fully autonomous racing, head-to…
Apr 30
DIY Robocars via Twitter
RT @f1tenth: Our Spring 2022 F1TENTH course @PennEngineers is coming to an end with a head-to-head race as a big finale. So proud of our st…
Apr 26
DIY Robocars via Twitter
RT @DanielChiaJH: I wrote a thing! Throughout the development of my @diyrobocars car I've been using @foxglovedev Studio to visualize and d…
Apr 23
DIY Robocars via Twitter
RT @SmallpixelCar: My new car for high speed. Low body, everything ( @NVIDIAEmbedded Jetson Xavier NX, @emlid RTK GPS, IMC) under the deck…
Apr 23
DIY Robocars via Twitter
Apr 21
DIY Robocars via Twitter
RT @f1tenth: F1TENTH Race training setup @PennEngineers for our upcoming ICRA2022 @ieee_ras_icra competition. @OpenRoboticsOrg @IndyAChalle…
Apr 21
DIY Robocars via Twitter
RT @fatcatFABLAB: Proud to be hosting a restarted DIY Robocars NYC Meetup April 26. Come by if you want to talk about and race self-driving…
Apr 17
More…