I would also recommend using IDE v1.6.8
viewtopic.php?f=7&t=5993
Water Level's Limitation
Roberto.
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Posts: 133
Joined: Sun Mar 09, 2014 11:01 am Location: Santos - Brazil |
Sure thing....
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Posts: 133
Joined: Sun Mar 09, 2014 11:01 am Location: Santos - Brazil |
Ok.. will be a littel difficlt do make myself clear since english is not my mother language... but let's try.
- Download and install IDE v1.6.8 - done! - Download the latest dev branch of the libraries = done! - Changed addr+=0x03; to addr+=0x01; in waterlevel.cpp - done! - Code compiled and uploaded - done! After that I've calibrate the pipe/sensor out of water (0%), and fully submerse (100%). End of calibration. With the pipe still in the last position (fully submerse), I've hit "Exit Menu" and...... RA* does not show 100% as expected, but only 69% instead. I Tryed again with orignal code (addr+=0x03;). Before calibration: Channel 1 shows 111%. Did it all over again. Pipe out of water, pipe fully in water... and RA* shows 111% again (instead of 100%) You may think "Pull the pipe some inches out of the water, dumbass". The problem is that 100% is near in the middle of the pipe (it's a long pipe), and that way is pointless trying measuring anything. Before asking.... yes, I've tryed with others channels. I even tryed with addr+=0x02;. It's looks like there is another place in the library with addr+=0x03; fixed, and as much as I try to change in waterlevel.cpp it is not working. I hope you all can understand me. Roberto, any Idea? Anyone? Best regards Rafa |
Does it work correctly if you use a shorter pipe?
Roberto.
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Posts: 133
Joined: Sun Mar 09, 2014 11:01 am Location: Santos - Brazil |
I Will have to try that... But I think It does since I was using Just Fine with RA+
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There is a max sensing capability from the sensor itself.
If it goes past the maximum pressure (0.57 PSI), things can get weird like you are experiencing. Roberto.
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You can try a pipe with a smaller diameter to see if that makes it better.
Roberto.
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Posts: 133
Joined: Sun Mar 09, 2014 11:01 am Location: Santos - Brazil |
Roberto
I am already using a 1/2" instead of a 3/4" pipe. |
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Posts: 133
Joined: Sun Mar 09, 2014 11:01 am Location: Santos - Brazil |
Roberto
I dont think It is the sensor limit. I was using the same pipe and the same sensor (attachment) before, but different controller (RA+ tô RA*). |
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Posts: 133
Joined: Sun Mar 09, 2014 11:01 am Location: Santos - Brazil |
Ok Roberto
I did some testing. For all tests, I used only RA * with Multi-Water Level directly connected through an Expansion Port. Everything else was disconnected. I used the same lean code:
The result was this table below: ![]() None of the tests gave an accurate result. I really have some problem. As I already said, I am using this Multi-Water level for 2 years with RA+ untill last weekend when my RA* arrived and I decided to migrate. May be something (or not) but very often when calibrating, I get 0 from the reading, and have to start all over again. best regards Rafa |
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