I have a 24 volt motor,
SPECIFICATIONS
that i will be running on 12 volt. it will be turning a shaft to mix compost. I want to be able to hit a momentary switch and that will turn on the motor to cycle for 3-5 seconds to mix the compost, (the motor will be mixing 2 gallons of compost in a 5 gallon bucket) and then the motor will shut off till the button is pressed again. Has anyone had experience with this type of application that can give me pointers?
system
October 1, 2019, 3:32pm
2
DaveMUtah:3-5 seconds
Does that mean you need a way to set the time between those limits, each time you fire it up?
Or that you haven't yet decided what the time needs to be?
I think 5 seconds would be perfect.
system
October 1, 2019, 4:40pm
4
DaveMUtah:
It would in any case be simple to edit and re-compile to experiment with different values.
In essence you need a circuit like the below, with someone else to guide you on component values, especially the mosfet.
The coding's quite simple:
Check the state change detect tutorial to see how to recognise a button press
When the press is detected, assign the current value of millis() to a variable and turn on the pin controlling the mosfet
Then every time through loop() check to see if 5 seconds has elapsed since the variable was set to the original millis() and turn off if it has
system
October 1, 2019, 5:04pm
6
But it's probably unnecessary to use an Arduino: a 555 with the right components could surely do the job of timing a few seconds?
Im just getting started into this technology, limited experience. Can you give me more information?
system
October 1, 2019, 5:13pm
8
Have a dig around in the pages near to that 555 link, here .
So using this 555 timer to trigger a relay that would then run the motor?
dougp
October 1, 2019, 7:26pm
10
DaveMUtah:
RPM 30
that i will be running on 12 volt.
Are you still expecting 30 RPM?
hammy
October 1, 2019, 9:27pm
11
My comment would be that motor doesn’t have a lot of torque, and a lot less on 12v and probably not up to the job(ies).
no i realize that at 12 volt the rpm with be half. The motor is turning a 12" long shaft in a 5 gallon bucket to mix 2 gallons of peatmoss/compost.
system
October 2, 2019, 3:26am
13
hammy:
Will the real Billy Connolly please stand up?
system
October 2, 2019, 3:33am
14
DaveMUtah:
In principle I reckon so; others would need to comment on the specifics of hooking that together.
