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Topic: Problem with 2 way motor for arduino UNO R3 [Help!!!] (Read 190 times) previous topic - next topic

TheGuyUnknown

Hello everybody, i will like you to help me in a project than i'm curently working on.
So in a nutshell, this project is about creating a sort of drone but different and to do this i would like to use " drone " motor but not 3way motor with esc but just 2 way motor with a + and a - (like the one from the hubsan x4).
The problem is than i don't know if i can control the intesity/ speed of the motor directly from the arduino without using potetiometer or think like that. I add the idea to use transistor but i'm not sure.

*Thank you

AWOL

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MarkT

Hello everybody, i will like you to help me in a project than i'm curently working on.
So in a nutshell, this project is about creating a sort of drone but different and to do this i would like to use " drone " motor but not 3way motor with esc
A brushless motor is the term, or BLDC - for RC craft these are usually sensorless BLDCs and require
a brushless ESC.
Quote
but just 2 way motor with a + and a - (like the one from the hubsan x4).
That's a coreless slotless dc motor
Quote
The problem is than i don't know if i can control the intesity/ speed of the motor directly from the arduino without using potetiometer or think like that. I add the idea to use transistor but i'm not sure.

*Thank you
For small coreless/slotless you can use a single MOSFET with PWM, but you'll need a higher PWM rate I think
than the default on the Arduino - ie reprogram the relevant timer for a faster operation.  As with any motor
driver circuit a free-wheel diode would be needed - look for examples of single-direction DC motor or relay control.

Most coreless/slotless motors are small and typically require an amp or two at most, and are usually
rated for direct operation from a single LiPo cell, ie about 4V. 
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