Triode
Well-Known Member
I'm working on converting a syma s107 to radio control. These are great little helicopters for under $30 except they use IR, and it can be choppy. (this is the helicopter for reference)
I have an ASK/OOK transmitter/receiver (**broken link removed**), it's small enough that it doesn't encumber the heli too much.
My progress so far is this:
+Located control signal output of the chip on the controller
+Realized that the signal needed to be inverted, and implemented a simple NOT gate
Current hurdle:
since the receiver needs 5V and the heli is 3.7V it still can't work without external power. With 5V applied the radio control works, but adding another battery would add too much weight.
Does anyone know if they make a small transmitter/receiver set that can work on less than 3.7V, or have a recommendation for a circuit that can boost 3.7V (which in operation may be only 3.2) up to atleast 5V in a small and simple enough package to fit in the helicopter? I have some MC3406 chips on hand, I don't know if they would work in this case.
I have an ASK/OOK transmitter/receiver (**broken link removed**), it's small enough that it doesn't encumber the heli too much.
My progress so far is this:
+Located control signal output of the chip on the controller
+Realized that the signal needed to be inverted, and implemented a simple NOT gate
Current hurdle:
since the receiver needs 5V and the heli is 3.7V it still can't work without external power. With 5V applied the radio control works, but adding another battery would add too much weight.
Does anyone know if they make a small transmitter/receiver set that can work on less than 3.7V, or have a recommendation for a circuit that can boost 3.7V (which in operation may be only 3.2) up to atleast 5V in a small and simple enough package to fit in the helicopter? I have some MC3406 chips on hand, I don't know if they would work in this case.
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