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Thank you to everyone that helped me with this. its short notice but I've fully finished the coursework and I am moving onto the next project. @Technoman @hippy @depeet especialy thank you and the community. I went with the 20x2 chips with 3 uln chips to control everything. I won't be able...

Due to it being a college project it can't be too complex as if too much work is put in they will remove marks so from what has currently been said its just a matter of me now making the circuit. poor cat

The college im at has the ability to create its own PCBs so it makes that risk null and void as any mistake is just lost baseboard. but you are correct as you don't want to have mistakes as in the past on projects I used a software called circuit wizard. because it doesnt have any linked company...

@hippy thanks mate I'm not fully at the programming stage as I'm just ordering all the electronics now. ill post the circuit once I have it done to do a final check then move to the programming. but it really helps with my understanding as I'm going to have to document all this development in...

I don't fully know how this is supposed to work but time to learn :D ive read this and it sorta does explain it http://www.circuitbasics.com/basics-uart-communication/ http://www.circuitbasics.com/basics-of-the-spi-communication-protocol from what i can see its a way for the inputs of one chip...

I found this joystick you can buy that I think works how you're describing. I did consider this approch however due to the accuracy that type creates it isnt nessay for the project and instead im going for more an arcade joystick design where it uses gates to control it. this will require for...

Sorry for the late comment to this been busy with other stuff, all the motors have arrived now so I can start doing the CAD model in regards to the architecture, I don't fully understand how you would program this as its not a strength of mine. I understand the master control 20m2 as it will...

yer sorry been a long day and just had a stupid moment and needed to think more about it before talking :3

this may seem stupid but by connecting to the 12 power rail will not cause a reverse signal into the chip or when the chip sends a signal does it sorta work like a transistor that will turn on the magnet or will it just get confused with 12v going in 2 directions. or is is just magic that it...

its not 6 anymore its 9 as i forgot to add 3 more as a way to set the motors home see #27 "yes i have and ive factored that into the new design i just drew up ( the new switches brings to total input to now 9" which is now why im going to use the 28x2 although i think it doesnt have enough...

So its a constant loop into the ULN rather than to 0?

ok thank you ill draw the circuit up when i can i have a meeting with the head of the course to start the write up

final question for the power regulator do i use a 5v regulator ( may seem stupid but not sure if im right in thinking that or do i need a 12v regulator)

im unsure how i would control 3 motors with 2 controllers as the guide material doesn't make it obvious how that would work or how i would programme that

yes i have and ive factored that into the new design i just drew up ( the new switches brings to total input to now 9), it was going to be a way for knowing when it had returned to home to know when to drop the prize. the electromagnet was going to be this...

ill most likely use the motor on the picaxe store here: as its easier then for me to buy https://www.picaxestore.com/gbx008 12V Unipolar stepper motor. 1.8 step angle. Mounting holes at 50mm spacing. Holding torque - 50 gm/cm Pull-in rate - 320 steps per sec Coil resistance - 75 ohms Current...

ok, thank you everyone for all your help i pretty much have the whole circuit planned out now and once ive finished ill post it to get critiqued. a final check will i require 2 or 3 ULN2003 to drive 3 motors as from what is on the component information its 1 per motor. correct me if im wrong...

yer with the project (this maybe out of context) but it does ask for it to be battery powered

yer it needs to be 3 for the xyz axis as well as some how i need to figure out how to connect an electromagnet as well. but a lot of stuff online said just use a transistor

The Coursework requires you to make a old claw arcade machine, 4 of the buttons for a joystick and the other 2 one is for the claw button and the other is a cheat button that will cause for the magnet to always be on it will work sorta like a 3d printer for movement in the x and y