Today's Message Index:
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1. 09:05 AM - Re: IVO Prop current limiter (kfav8r)
2. 09:17 AM - Re: IVO Prop current limiter (kfav8r)
3. 10:05 AM - Re: Re: IVO Prop current limiter (C&K)
Message 1
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| Subject: | Re: IVO Prop current limiter |
Attached is the Arduino code for, and a diagram of the IVOProp controller.
For the diagram, I used part of one of Bob's drawings, and added the Arduino components.
These are the components I used:
- Funduino ATMEGA328P Development Board
- ACS712 Current Sensor Module 20A
- SLA-12VDC-SL-C 12V 30A relay module
I had never worked with Arduino before, so I just bought what I thought made sense.
The Funduino board might be over-kill for this application; I'm sure there are
plenty
of alternatives available. The Funduino board is apparently an Arduino-compatible
clone.
All of the components were purchased on eBay.
For expedience, I put the current sensor between the prop adjuster switch and ground.
It would probably be better to have the sensor between the switch and the prop,
on one of the power lines. That would allow the code to see positive and negative
readings,
depending on which direction the pitch is changing. You could then prevent further
movement
of the prop in the same direction after a limit has been reached. Right now, the
code cannot
determine in which direction the blades are moving.
The txt file is the Arduino code. Replace .txt with .ino to open it in the Arduino
code editor.
--------
Doug
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=470727#470727
Attachments:
http://forums.matronics.com//files/ivoprop_control_186.txt
http://forums.matronics.com//files/arduino_prop_control_998.jpg
Message 2
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| Subject: | Re: IVO Prop current limiter |
> This might be another opportunity for an open source
> project. Once you've finely tuned the code, we can
> poke it into chips for mounting on a dedicated
> ecb . . . have you considered solid-state
> switching as opposed to relay?
Bob,
I'm open to any of your great ideas.
I had not considered a solid-state switch instead of a relay,
but that does sound like a good way to go.
It would be nice to have this in a small package.
Right now, I have the Arduino (clone) board in an enclosure,
and the other components in the separate enclosure I had
been using for your original circuit.
Thanks,
--------
Doug
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=470728#470728
Message 3
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| Subject: | Re: IVO Prop current limiter |
For a smaller package, the 5 volt arduino clone pro mini boards are
under $2. delivered and can replace the funduino.
In my mind that makes them a no brainer to incorporate when building
multiple copies of something, instead of starting from scratch.
http://www.ebay.ca/itm/Pro-Mini-Enhancement-ATMEGA328P-5V-16MHz-Compatible-to-Arduino-PRO-mini-/191679508570?hash=item2ca0fd305a:g:AxIAAOSwT6pV5YIu
Boards like the funduino (uno clones) are much larger but include the 5
volt power supply regulator and USB interface and are usually more
convenient for one off projects or a first project.
Ken
On 06/07/2017 12:16 PM, kfav8r wrote:
>
>
>> This might be another opportunity for an open source
>> project. Once you've finely tuned the code, we can
>> poke it into chips for mounting on a dedicated
>> ecb . . . have you considered solid-state
>> switching as opposed to relay?
>
> Bob,
>
> I'm open to any of your great ideas.
> I had not considered a solid-state switch instead of a relay,
> but that does sound like a good way to go.
>
> It would be nice to have this in a small package.
> Right now, I have the Arduino (clone) board in an enclosure,
> and the other components in the separate enclosure I had
> been using for your original circuit.
>
> Thanks,
>
> --------
> Doug
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=470728#470728
>
>
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