Driving directly a stepper motor used for Vehicle’s Instrument Gauges.
The motor must be removed during the Sketch Loading (disconnect from USB pins) .
This kind of motors can be driven directly by the Trinket.
The motor follows the potentiometer.
The Sketch is the same used in the “Arduino Driving a Micro Stepper Motor” in this blog, just change the pin mapping to use the Trinket .
https://arduining.com/2012/04/22/arduino-driving-a-micro-stepper-motor/
Change the definitions in “Gauge_Pot01.ino”:
#define STEPS 720 // steps per revolution (limited to 315°) #define COIL1 1 #define COIL2 3 #define COIL3 4 #define COIL4 0 #define POTIN 1
The YouTube video…
Arduining 
where’s the code ?
in the post “Arduino Driving a Micro Stepper Motor”
” just change the lines as described.
https://arduining.com/?s=driving+a+stepper+motor
Wnen I realized I needed to do a search I found the above link and the code works great !
Thanks !
How to define number of steps the stepper motor VID29 ?
Now the link is included, thanks for your comments.
Can I connect to the Trinket more powerful stepping motor through the driver A4988? what needs to change in the sketch? Thanks!
I think will be easier,
Only STEP and DIR signals required, you don’t need the stepper library…
The RAMPS A4988 can only source about 700mA .
http://reprap.org/wiki/Pololu_stepper_driver_board
and is it possible to control two motors with two potentiometers?
Did it here:
Why such a long delay, and how to reduce it?
maybe motor is slow? Reduction ratio – 1/64? http://www.ebay.com/itm/191337497211
How to define number of steps the stepper motor ?
Respected sir,
I work as a cameraman sir I want to make a
focus control for a dslr camera lens.Earlir I made one with a hobby servo
Arduino and potentiometer and used arduino example skech servo knob,but
it has got some limitations like loud noise and only 180 degrees movement.
sir I want to control astepper motor, nema 17, using a easy driver v 4.0,
and I am new with Arduino and do not have adequate knowledge.
sir I want that the
stepper motor should respond to the potentiometer movement ie. it
should rotate 0-360 degrees and 360-0 degrees, one single rotation
according to potentiometer movement.
sir in arduino example skech stepper motor Knob there are four coil
connections are there coil 1,2,3,4 sir that skech work fine with driver
ULN2003 and L298, where four indiviual coil connections can be defined.
But here in easy driver have only two connections step and direction
sir how can i achieve the same result by using a easy driver or
u can suggest some code for this, pleas throw some light on this.
Hope to be favoured please.
Thanking You.
Manas
The arduino Stepper library has a “Stepper Knob ” example similar to the Servo Knob example
I would like to include a stepper like this in a project but I will need to reprogram it in use after final build. The trinket size is preferred but removing the stepper motor every time I recode will be a big problem . Since no mention of doing that is in the original idea please tell me for what reason you felt you had to do that while uploading code?