Hi,
I want to put an arduino system on a parrot ar.drone. Because it has to be pretty lightweight I had thought of a Sparkfun Fio v3 (Fio v3 - ATmega32U4 - DEV-11017 - SparkFun Electronics). I also want to connect 4 HC-SR04 ultrasonic rangers: Does anybody know how much they weigh (I have not found any information to this in the internet)? Also, the problem is they are 5v, and the Fio is only 3.3v. Would it be a good choice to get this 5v DC to DC step up device: 5V DC to DC Step Up - VPack PCB - PRT-08290 - SparkFun Electronics? I'm a newbie in electronics and arduino!
Thanks in advance!
The HC-SR04 weighs 0.3 ounces. So you could put 4 of them on your project and only add just a hair over an ounce.
Thank you! 