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Topic: Help powering Adrduino UNO and servos from Lithium Ion battery (Read 1 time) previous topic - next topic


I need some help for my senior design project. The general idea of the design is I am using the Arduino UNO combined with the VRbot voice recognition module to control two linear servos/actuators.

Firgelli L12 -R Linear Servos:

I used an H-bridge IC L293D and followed the tutorial here to forward and reverse the actuators:

I have everything working correctly but I need some help on making it portable. I'm using a 7.4V 2200mAh rechargeable lithium ion battery to power everything found below:

Li-Ion 18650 7.4V 2200 mAh Rechargeable Battery module with PCB:

How can I safely and correctly power both the servos and Arduino board using just one battery. Can I connect the battery directly to both the servos and Vin of the Arduino? Any help would be great!


You probably need to get a UBEC like below.

Google forum search: Use Google Search box in upper right side of this page.
Why I like my 2005 Rio Yellow Honda S2000  https://www.youtube.com/watch?v=pWjMvrkUqX0



Instead of buying a UBEC, just get a $1 lm7805cv and hook it up

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