gordy wrote:RobC wrote:The problem with flow meters and similar is that they depend on the tank being filled consistently.
Wouldn't the best way be to monitor the fuel going into an empty tank via the flow meter, then you have the exact amount in the tank when you take off.
you're making it complicated again, now you need a flow meter to measure fuel going in, a flow meter to monitor rate of consumption and a processor matching one against the other.
Surely the simplest way (KISS) is to just send a signal back to the tx when the fuel level gets low in the tank? Think of it like a battery low voltage warning, the best way is just to have a trigger for when the voltage drops to a set point.
Now that just leaves the format of this low level trigger.
Incidentally, the production receivers seem to have the 3.3v connections disabled by the simple process of clipping those two pins. This leaves the two analogue inputs with just input and ground connections. I guess the 3.3v rail reference is obsolete now
These are about 2-3mm wider and 5mm longer than the old 8 channel rx.