Can I go from a 3 wire ESC to a 2 wire servo?

[Daniel C]

Is it possible to go from a 3 wire esc to a 2 wire servo?

 

[olds97_lss]

What esc and what servo are you trying to use together? I haven't seen a 2 wire servo before. Not sure how that would even work as the 3 wire ones have power +/- and the third is the signal.

 

[entropy]

What esc and what servo are you trying to use together? I haven't seen a 2 wire servo before. Not sure how that would even work as the 3 wire ones have power +/- and the third is the signal.

2 wire servos are crude, basically just reversing the voltage to change direction, used in Arduino builds and other simple projects. Not suitable for RC unless you've got a controller to reverse the voltage to change directions.

 

[entropy]

so why the fuk do you want to use it are you that fuking cheap

Do you have a personal issue with this fella asking a simple question?

 

[entropy]

a stupid question, and you are stupid for trying to answer it

I’ve often questioned my capacity for learning, now I realise it’s not a capacity issue at all, I’m just stupid, confirmed by a random e-thug.

 

[olds97_lss]

2 wire servos are crude, basically just reversing the voltage to change direction, used in Arduino builds and other simple projects. Not suitable for RC unless you've got a controller to reverse the voltage to change directions.

Oh, I got you. Never saw something like that for RC use.

 

[Doom!]

2 wire servos are crude, basically just reversing the voltage to change direction, used in Arduino builds and other simple projects. Not suitable for RC unless you've got a controller to reverse the voltage to change directions.

I learned something new!

 

[>BD]

I learned something new!

I never knew that 2 wire servos were a thing. I'm guessing that is what they use in toy grade vehicles.

 

[Myster1086]

Hey I'm sorry to revive old thread, actually registered just to see if you have any pointers. I have a big 1/8th toy Ferrari, amped it up with the brushed motor of my redcat lightning when I upgraded to brushless, thing is I broke the gears inside the servo and replaced it thinking I got plenty of gears, none that meshed at that size tho. When I cracked open the busted hobby grade servo, hexfly I wanna say it is, I found that it's nothing but a motor connected to a potentiometer, I'm guessing the motor turns the pot, which the board reads as the steps and the location of the steering arm. I do have the original "servo" that was on the car but it's 2 wire, going to a 3 wire esc. Would joining up the +/- work still or are those always open and the 3rd being a pot what gives each the power needed for degree of turn? Or if you found a better way?

 

[WickedFog]

Servo wires are +/-/signal. The signal wire tells the servo what to do basically. If you try using just the positive and negative, you will have no control of the servo. In toy grade, the control is handled on the pcb.

 

[Myster1086]

Servo wires are +/-/signal. The signal wire tells the servo what to do basically. If you try using just the positive and negative, you will have no control of the servo. In toy grade, the control is handled on the pcb.

Ya that was my original conclusion, hooking them up without the signal it just goes full open and turning the other way with remote goes full open other way until releasing it then it goes back the other way

 

[WickedFog]

Ya that was my original conclusion, hooking them up without the signal it just goes full open and turning the other way with remote goes full open other way until releasing it then it goes back the other way

There will be no one way or the other. The signal wire tells the servo to do that.