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fixed power single esc?
#1
hello
is there anything at the market
that i could connect battery and motor and NO FC
and it would spinn this motor at full speed? or 50% speed?
withoud any FC?
i woild like to make something else from my biten motor, have idea for grass cutter xD
but would need to power this motor/esc by button withoud any FC etc?
does someone have an idea on esc like that?
thanks and regards !
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#2
You can wire an esc to a servo tester and use that to control your motor speed. (You can use a lipo to power if desired rather than the power supply he used in the video)
It’ll be variable speed, but you can set it to 50% or 100% or whatever fits your need.

Dangerous operations.

Disclaimer: I don’t know wtf I’m talking about.
I wish I could get the smell of burnt electronics out of my nose.
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#3
If you can generate a PWM signal through a potentiometer and maybe something like an arduino it should works directly without an FC.
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#4
i was thinking aboud arduino but was not shure if it is easiest solution
servo tester will be best for this - i didnt known of such device before ;P
thanks and regards
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#5
I’d be curious to see what you’re building as well as how it works out. Big Grin
Dangerous operations.

Disclaimer: I don’t know wtf I’m talking about.
I wish I could get the smell of burnt electronics out of my nose.
[-] The following 1 user Likes Lemonyleprosy's post:
  • d00lar
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#6
small update
this servo tester is 3s
is there such for 6s ;s
i have 6s battery and 6s motor so want use that ;P
if no tehen some voltage reg ? 6s>3s?
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#7
I’m not 100% sure what you’re asking, so I’m going to answer what I think you’re asking, please correct me if you’re asking something different.

If something says it’s rated for 3-6s, it means it can handle 3s to 6s batteries.
HOWEVER, since we’re talking about a servo tester, I think you mean that it can handle 3-6v (3v to 6v).

If your esc doesn’t have a 3 wire signal lead (5v, ground, and signal) in addition to the main power wires, then you could connect one of the bec’s linked below to your main power wires, run the 5v output to the servo tester, and run the signal wire from the servo tester to the signal wire on your esc.

https://www.mateksys.com/?portfolio=mbec6s
Dangerous operations.

Disclaimer: I don’t know wtf I’m talking about.
I wish I could get the smell of burnt electronics out of my nose.
Reply
#8
this servo tester is 3s * i messed up the quastion

this servo tester is 3s
is there such for 6s ;s
i have 6s battery and 6s motor so want use that ;P
if no then some voltage reg ? 6s to 3s?
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#9
See my previous answer. All the servo tester is doing is putting out a pwm signal to tell the esc how much power to put to the motor via a 5v pulsed signal- as long as you’re not putting too much voltage through the servo tester itself (in other words, use the linked to bec to power the servo tester), it doesn’t know nor care what size battery or amount of voltage/amperage is running through your esc or motor. It is strictly a control signal- it is taking the place of your throttle stick on a transmitter. Your transmitter doesn’t know or care what voltage or amperage is running through your quad- it just transmits “power equals 0% to 100%” depending on its value. Servo tester is the same.

Does that make sense or am I not explaining it well?
Dangerous operations.

Disclaimer: I don’t know wtf I’m talking about.
I wish I could get the smell of burnt electronics out of my nose.
Reply
#10
ok to be clear
https://aliexpress.com/item/4000902978297.html
this is 2-6s

and

https://aliexpress.com/item/32850817335.html
this is writen 4,8-6v

and this will work even with my 6s batteries because this esc/bec is lowering this voltage on this 3pin cable that goes to this servo teaster yes?
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#11
Correct.
The esc that you linked to has a bec that puts out 5v to 5.5v on that 3 pin cable depending on what amperage model you have- the servo tester can handle up to 6v, so regardless of which of those esc’s you have, the servo tester will be fine.

The 50A and above models of that esc are the only ones that say they can handle 6s batteries, so make sure you have that model or higher in order for your esc to be able to handle your battery.
Dangerous operations.

Disclaimer: I don’t know wtf I’m talking about.
I wish I could get the smell of burnt electronics out of my nose.
[-] The following 1 user Likes Lemonyleprosy's post:
  • d00lar
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#12
ok bought 50a version
will update some day what will be finished product ;d
[-] The following 1 user Likes d00lar's post:
  • Lemonyleprosy
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