If you can't make it with this information I gave - it means you are a bit too noob
Normally, Instructables are terrible and should be avoided like the plague, but this one is a surprisingly simple and useful example.
So no need of Arduino mega even if I add another motor ? What if I want to send the message to the slider and switch off my android device, it dosent have to talk back with it for cordinates ?Sorry if Im asking lame questions, what if I were to use 2 x Nema17 and one Nema 23 motor with this setup ? Theyhave different current rates. I would just put an Arduino shield, right ?Asking too many questions because id have to order everything online, wait three weeks for them to recieve. So if i miss anything its another three-four weeks lag.
Thank you very much, 3Dgeo.That was a big heads up with the driver DRV8825, as the motors are rated at 1.7A !Right, now I know I can just send the program to the micro controller and never have to worry about it again. I would seriously love a feedback/alert on my battery level of the slider though Just thinking too much ahead, LOL.Yes, Im big enough to find them on Ali Two months waiting from China ? That's pretty bad !Thanks again
What battery you are going to use?I bet your gonna nag the crap out of this forum when it comes to coding On my project I'm thinking replacing steppers with servos, they're lighter and smaller, but as I said, it's on hold.For shutter you need simple optocouplers and limiting resistors to use them on Arduino 5V I/O pins.
For receiving data on the Arduino have a look at the examples in Serial Input Basics - simple reliable ways to receive data. There is also a parse example to illustrate how to extract numbers from the received text....R