Controlling the motors from the ESP

epfl-cs358 / 2024sp-helping-hand

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Controlling the motors from the ESP #18

Closed malenraychev closed 2 months ago

malenraychev commented 2 months ago

[x] be able to control the motors via http interface
[x] also control the ~~solenoid~~ servo
[x] discovery protocol for the ESP and the CAM

unglazedstamp commented 2 months ago

The power supply provides 9V but the Nema-14 motors require 8V, so we will need some DC to DC converters, I saw in the handbook that there is the LM2596 buck converter. Is this one or another converter in stock ? @feeds

feeds commented 2 months ago

@malenraychev Would be the one who knows!

malenraychev commented 2 months ago

Hey guys, yes there are buck converters in stock, unfortunately I am personally on UNIL campus today, but someone might be in DLL for their office hours and can provide you with one. Otherwise I can be there tomorrow evening to give you one.

Cheers,

@unglazedstamp

unglazedstamp commented 2 months ago

Hello, thank you for the quick answer. Let me know when I can come in DLL to get the buck converter, I should be on the campus at least until 19h. Otherwise I will come again on Monday.

@malenraychev

malenraychev commented 2 months ago

I can be at DLL at 17-17:15

malenraychev commented 2 months ago

@unglazedstamp

unglazedstamp commented 2 months ago

Thank you, I will be there. @malenraychev

malenraychev commented 2 months ago

I'm at DLL atrium @unglazedstamp

unglazedstamp commented 2 months ago

The discovery protocol of the plotter controller is ready to merge at #19

unglazedstamp commented 2 months ago

I'm able to control the motors but I can't include the motors control library and the web-server library in the same program.

pinar-oray commented 2 months ago

[x] try other wifi libraries because of the conflict with stepper library
[x] check if servo can be powered by ESP
[x] wire the other motors (stepper + servo)

pinar-oray commented 2 months ago

@unglazedstamp

unglazedstamp commented 2 months ago

The motors, the servo and the ESP are powered by the same power supply. The motors can be used with the go-to endpoint (i.e. http://IP_ADDR/go-to?x=100&y=300). The plotter remember the coordinates on restart. The servo can be used with the short-press and long-press endpoints.

Next things that need to be done:

[ ] attach the motors and the electronic to the base plate
[ ] setup the correct maximum values for x and y
[ ] ~setup an additional endpoint to adjust the press distance ?~ for the moment use hardcoded value; figure this out later