mhfleming
USA
Asked
— Edited
Hello all,
I am working on a BB-8 and I want to use the Ez-B as the brains. I have wired up an arduino to take care of talking to the various LEDs in the head. But right now I have a separate power supply for the arduino and a different one for the Ez-B. How have other people done this? Is it possible to use just one power source?
Thanks for the help!
Matt
can you describe:
I hope this helps. The LEDs that I am using are simple monocolor LEDs. I do not have the exact specs with me.
As for the voltage input to the EZB, I was going to use the battery pack that came with the developers kit. But I could switch to a Lipo battery instead if that would work better.
Power sources:
developer kit battery pack with 6 x Rechargeable AA (NiMh) 6 x 1.2 = 7.2v 1900 mAh
developer kit battery pack with 6 x Non Rechargeable AA (Alkaline) 6 x 1.5 = 9v 2500 mAh
Lipo Battery https://www.ez-robot.com/Shop/AccessoriesDetails.aspx?prevCat=103&productNumber=41 7.4v 1300 mAh
Based on the public specs:
EZB (4.5-16v) https://www.ez-robot.com/Tutorials/Files/EZ-Bv4%20Datasheet.pdf
Nano via VIN pin (7-12v) https://www.arduino.cc/en/Main/ArduinoBoardNano
Adafruit circuit V+ Pin (5-30v) https://www.adafruit.com/product/1429
you can share one of the above power sources between all the 3 circuits.
Note: i strongly recommend a 7.4v Lipo Battery if you have plans to add the ezb servos to your project.
Thanks! I do not plan on adding Servos at this point. This is just for the head of BB-8 so it is more LEDs and some sounds.
Thank you again for the help!
Matt