Twin Ducted fan arduino car

Projects General Guidance
1

Hey guys,

For a uni project, my group has to design an autonomous car. We've decided upon using an arduino chip to control two ducted fans, with brushless motors, independently so that they can be used for steering. I was wondering about how we would go about wiring the arduino as well as the electric circuit.

To make it simpler I will list the materials and the order/how they are connected:

2200 mAH 25 C 3s LiPo battery

Y harness which splits the current in two, and plugs into both ESCs (http://www.aliexpress.com/item/XT60-Parallel-Battery-Connector-Cable-Extension-Y-Splitter-for-DJI-Phantom/32299436956.html)

Both ESCs plug into a motor each.

Both ESCs have a three wire servo cable as well. The power that must be supplied to the arduino must be supplied through one of these cables, so that we have a battery eliminator circuit. How do i rig the other two wires in each cable, so that the motors are controlled independently as two separate servos?

Cheers fellas,

Nick

2

this can be done with the servo command.
cabling is very dependant on the units. be sure they run on 5 Volt.
So you have a hovercraft thing
if not the fans must be put on the steering wheel.

3

Use one of the ESC's BECs to supply the arduino. Disable the other, or pull the power wire from the three pin connector. Are you using an RC Tx/Rx for control feeds? If so, you could use the other BEC to power the Rx (common the grounds), but that is'nt really necessary. You will have better directional control if you use a servo driven pair of vanes (one on each EDF exhaust) to deflect air flow over trying to reduce RPM on one fan to induce a turn. You might also want to consider reversing ESC's to facilitate braking. sounds like fun. keep us informed as to your progress.