AquaPorn
New member
Got my pH probe delivered today. Set it up to work with a ph amplifier circuit I build and connected it up to the arduino. Works great!!
What probe are you using? Atlas-scientific?
DIY Reef Controller
- Thread starter nkd5024
- Start date
What probe are you using? Atlas-scientific?
AquaPorn
New member
I've got this thread permanently open on my phone. I've been trying to interpret a weather sketch on this thread that seems to be impressive, however the coding is still above my head.
Steps in the right direction. thanks Rott!
Now a question for everyone. I'm working on the Sunrise/sunset schedule.
What is the importance level to everyone on being able to control the sunset time?
Just with the UI...individuals would still be able to change it in the sketch.
It's just makes for easier coding with the schedule matrix if its a 12 hour light schedule default. You can set the start time, and then runs a 12 hour schedule from that point.
AquaPorn
New member
My pleasure man! Good luck with your build, and I look forward to seeing it.
So, you better have a journal set up somewhere when you get going.
I got one off eBay which was loads cheaper. Got a probe with a 0.01 resolution which works perfectly.
shark boy
New member
Wanna share where you got it?
Will do, right now, I'm working on a supplies list and hardware design. Thinking about going fancy with a 4in+ lcd or oled heh
Hope its not against the forum rules. Search eBay for:
150mm Laboratory Room Replacement Probe Electrode PH Sensor Resolution 0.01 PH
Seller is marcmart.home
AquaPorn
New member
Here you go. I don't think you to register. If you do let me know and I'll upload the PDF somewhere.
http://www.electro-tech-online.com/electronic-projects/41430-ph-amplifier-micro.html
http://www.electro-tech-online.com/electronic-projects/41430-ph-amplifier-micro.html
shark boy
New member
Do you have gerber files? I read that something is backwards in the schematic. Is it backwards on the board as well? What did it cost to build?
Here is the corrected schematic. (Which is from page 2 of the above link) There were some pins on one of the op amps that were reversed.
I just built the circuit on some strip board, a little messy but easy enough to do.
I had most of the components lying around but it should only cost a few $'s to put together.
I just built the circuit on some strip board, a little messy but easy enough to do.
I had most of the components lying around but it should only cost a few $'s to put together.
Attachments
shirley386
Member
How do you calibrate it to work with the probe?
On the circuit I used there are 2 pots to let you calibrate it.
I finally got my ethernet module working as well. I used the enc28j60 module which is a real bugger to get going - still trying to iron out a few bugs but at least its sending out data.
https://xively.com/feeds/1669635505
Its just test data so the values are fake
shirley386
Member
I mean the one asid61 posted. I don't see any pots on it.
Hi all, I am getting ready to setup my 265 Gal tank in the next few months and wanted to build a Arduino controller, I was wondering would it be worthwhile to use a Arduino Due with NXP PCA9685 for 16 extra PWM channels and setup the blues and white on 3 separate channels each as well as setup the remaining 4 channels for Violet , Deep Red, Cyan and Blue for full spectrum. I am thinking with a 7ft tank I would be able to have the sunrise/sunset move from left to right as well as have cloud coverage move randomly. Thoughts?
