![]() ![]() Stepper1.moveTo(-stepper1. Define some steppers and the pins the will useĪccelStepper stepper1(1, 3, 6) // Stepper Y (Stage 2) 1 = Control by a dedicated driver board (DRV8825) 3 = Arduino pin connected to STEP 6 = Arduino pin connected to DIRĪccelStepper stepper2(1, 2, 5) // Stepper X (Stage 1) Release notes V3.42 A friend of mine gave me a tip some time ago to take a closer look at the Arduino Mega 2560. My question is can I simply change the sketch to make the shield work on a Mega (not a Uno)? Perhaps by changing the pin number? #include I previously set up steppers using the Mega 2560 and a breadboard prior to ordering the shield (which is a neater set up) and motors worked OK ![]() I have also read the post (about GRBL) about different port mapping but I do not understand ports. I have looked at the Forum notes on comparison of the two Arduinos and the color coded diagram of differences but it is not obvious to me that differences are significant for the CNC shield. I have read in the forum about pinouts on Uno and Mega not being the same. Ive checked out the enhanced work on the EliteEng/grbl repo, and it works indeed on my mega2560 based board. I have attached the code I used to test the motors based on AccelStepper.īut I need some analog inputs for sensors (shield covers Uno input pins) so I tried to use a Mega 2560 by just transferring the shield to the Mega and altering the sketch to Mega. SSD1963 libraries like UTFT should work out of the box. The Shield contains all the level shifters. ![]() If everything is ok you just plug the Shield into your Mega2560 and the Display into the 40-pin Adapter socket. I set it up with 2 steppers and a DRV8825 Arduino shield from Protoneer on a Uno. fork of grbl-mega RAMPS 1.4 and modified for Makeblock Laserbot with Mega Pi board - GitHub - renebohne/grbl-laserbot: fork of grbl-mega RAMPS 1. Compare the SSD1963 display pinout with the TFT pinout in the first link. I have a robotic arm project using stepper motors Using a Mega 2560 instead of a Uno with a CNC Shield ![]()
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