As I have no idea time to ask dumb questions.
I am trying to run two fans 13.6v 4 amps each
I was hoping a no brainer approach of Uno > HW-130 Motor Driver and using 12v 2 amp to the Motor Driver but obviously that did not work.
Is there a plug in (stacked) Motor Shield I can use to drive drive these two fans (PWM) or do I need to take some extra steps.
If that is the case and idiot guide on how to achieve this.
Thanks
How did this not work and show your sketch and wiring diagram.
Why is a plug and socket or on/off switch not suitable? (why the complexity?)
Do these fans have a PWM control input?
You may not need a shield or driver.
Infineon do several eval boards for their power FETS using Arduino shield format, not amazingly cheap but good quality. For example BLDC-SHIELD_IFX007T - Infineon Technologies
I used one in a project and it went very well.
Since you did not give much information I will assume they are simple fans that run in one direction. Based on that here is a simple circuit that will work, one for each fan preferred but 1 could drive both if wanted.
Yep PWM via the Simhub software
Which one would that be?
Sorry This one
So it is NOT the SimHub description that I show in post #8 , is that correct?
It's important to provide more information about what you want to connect: fan connector type, fan power supply. A photo would clarify any doubts.
The best way is to use a mechanical relay for on/off and control the RPM by varying the PWM signal. That's how I can control the PWM fans of the PC with a Teensy 4.1 and with the support of a 5" NHD FT813 TFT.
PD: The voltage for the fans comes from one of the 12V lines on the PC's power supply.
Another question
I realize most people here are not using Simhub for their project however it is the go to for simulator users and pretty much programs your board for you .
That said I am trying to get these two fans to spin up, using simple small Computer case fans no problem but when telling Simhub what type of Motor Shield I am using only the DK Shield works if I enable Adafruit It will not send a signal to spin up the fans, that is not an issue (if they work) but all the you tube videos on the subject say enable the Adafruit option They are using the same shields as me.
What is the difference between an Adafruit and DK board?
Thanks
Hi jim-p
No #8 is not a SimHub Image #9 is a simhub image
You better post the datasheet for the fans you are using, they may not be PWM controllable.
SImHub recommends using the monster motor shield
Thanks Jim
I was unsure if I should use a Pololu Dual VNH5019 or the Monster Moto Shield VNH2SP30
And in advance of a response the Monster Moto Shield VNH2SP30 is limited to 12v where as the Pololu Dual VNH5019 can handle up to 36 volts
(I can't seem to find a 24v Monster Moto Shield)
The fan options I have are either 12v > @ 6amps or 24v @ 3 Amps
My power supply is rated 24v 14.6 amp. Is the power supply amperage too high for the Pololu Dual VNH5019 or an alternative Monster Motor Shield.
Again sorry for what may be badly worded questions but I have only just started to try to understand the whole Arduino concept.
No. The power supply doesn't force the current it has, the motors will draw whatever current they need. Having twice the current you need is good since it won't strain the power supply.
I'm sure you could use any shield as long as it uses the same pinout as the monster shield but you need to compare the schematics to be sure they are the same.
KK
Thanks you for your advice greatly appreciated
