hello, first post, please kind 
.
i have connected arduino uno, rugged motor driver , 4 wire bipolar stepper motor run small pump. know how vary revolutions per/min. have unique need.
i want change rpm's between daytime rate , nighttime rate.
in simpleton terms..... conducting experiment water plants. during day want ml/min rate. @ night want less..... want change between these rpm's on own. without me having upload changed sketch......
does sound possible arduino uno? need sort of "clock shield/timer"?
any appreciated. keep in mind i'm noob @ this.
cash
. i have connected arduino uno, rugged motor driver , 4 wire bipolar stepper motor run small pump. know how vary revolutions per/min. have unique need.
i want change rpm's between daytime rate , nighttime rate.
in simpleton terms..... conducting experiment water plants. during day want ml/min rate. @ night want less..... want change between these rpm's on own. without me having upload changed sketch......
does sound possible arduino uno? need sort of "clock shield/timer"?
any appreciated. keep in mind i'm noob @ this.
cash
i presume (based on post) know how use 2 different values achieve different speeds , need advice code bring appropriate value use @ correct time.
you use millis() manage timing (see several things @ time) arduino clock not run @ 16 mhz long time periods better use external real time clock (rtc) module.
...r
stepper motor basics
you use millis() manage timing (see several things @ time) arduino clock not run @ 16 mhz long time periods better use external real time clock (rtc) module.
...r
stepper motor basics
Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Changing RPM at different times
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