My controller will run all of this off my wall-wart, but as soon as there is multiple servo moves, it understandably resets the controller.
I am working out a battery scheme to power the bot and I would like to power the servos and sensors seperate from the controller.
There are multiple reasons for this, mainly though, the microcontroller provides a regulated 5.0v power to the servos, and I can not exceed 2.0A @ 7.2 volts or it could “permanently damage” it. I would like more than 5v to the servos.
I have a battery for the controller that will work fine, the servo battery is where I’m stuck.
And I was going to use: servocity.com/html/servo_power_boards.html
from what I can tell, this will completely isolate the power off the controller, so the only connection to it will be the signal wire.
has anyone used this before? if the power is coming off this board, why do the “From reciever” wires still have a + and -?
What is the best way to do this? Does the battery seem like a good choice?
Why don’t you power the elctronics (controller, sensors) with one battery and the servos with another. The only connection between the two batteries would be the negative(-) pole. This way one battery gives power only to your servos and one battery gives power only to your electronics.
I’d agree with Apostolos. Use two batteries. I can’t see that the power distribution board you mention would do much for you. Probably for an R/C car/plane.
You should also look into BEC’s. There’s been considerable discussion on this device on this forum. Search BEC.
What is the best way to power the servos seperately, physically?
Leave the signal wire going to my controller, and then connect all the + & - servo wires to the battery? seems like a lot of cutting and splicing, I thought the board I linked to eliminated this?
Assuming you are using an SSC-32 to drive your servos, then the Vlogic and Vservo power rails can be separated. Just remove the VL-VS jumper!
If not, then you’re going to need a little board with a raft of 3 pin connectors for the servos (hmm, like the board you posted on). Connect the grounds of the servos to the ground of your controller board (BB2), and run separate + wires from VL batt to controller board, and VS batt to this servo “distribution” board. The signals from the controller would go to the servos.
