engine kill relay for rc

154

02:08:11

This is a circuit I used for an rc airboat powered by a 25cc weed eater motor with a 16" triple blade propeller. If my receiver system battery would get to low the circuit would activate the kill switch preventing loss of control. I powered the circuit through my receiver so if the receiver ever cut out due to low power my 5 foot long 40lbs airboat wouldn't go rouge and attack some poor kid at the lake. If the 7.4V power supply drops below 4.78 the relay switch activates. The circuit can be reset with the push button switch.

published 5 years ago

BillyT

5 years ago

The basic idea is good. As each relay has different characteristics some experimenting with the circuit resistances would need to be carried out.

wyoelk

5 years ago

I cleaned it up a tad to make it easier to follow. Hope you like it. _ _ http://everycircuit.com/circuit/4553901561610240

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.