Robotic arm with Arduino DUE


for school project make robotic arm draw equation.
i use ramps on top of due, difference between ramps 1.4 , ramps-fd?

i'm not sure ramps-fd, have read -cannot- use ramps 1.4 on due because uses 5v instead of 3.3v. have been using work around driving robot.

i pulled pololu 4988 stepper drivers off of ramps 1.4 board , put them on breadboard. wiring relatively easy if follow diagrams online. ramps 3.3v digital outputs able step motors via pololu driver (assuming using stepper motors).

the downside is less compact , little uglier. need buy 100uf capacitor put across power supply leads (i got mine @ radio shack).

better late never response hopefully. pm me if have questions it, won't notification if respond here.


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