Mikeneedsahobby

Well-Known Member
View Badges
Joined
Sep 16, 2018
Messages
516
Reaction score
922
Rating - 0%
0   0   0
Thank you for you help. I hope nothing fries when I power up
I hope so too. I think I should point out that I’m a mechanical engineer by education. Electrical stuff is hard for me. So maybe double check stuff with a multimeter first.

#reefpi
 
Last edited:

Mikeneedsahobby

Well-Known Member
View Badges
Joined
Sep 16, 2018
Messages
516
Reaction score
922
Rating - 0%
0   0   0

Here is some backup
 
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
I am finishing up wiring my reef-pi build. I am going to build a 700 watt display light with 6 channels using meanwell hlg/elg dimmable to off drivers(0-10vdc, 10vPMW, or resistance). I would like to add the wiring to a plug for later use now for the control wires. I have an ML hat with 3v3 PWM signal via pca9685. Seems like the easiest way to control the 6 power supplies is by building the npn amplifier circuit in the guide. One question related to that is the power supplies are controlled by 100hz-3khz PMW signal, that frequency is achievable? Second question is do I need 12 control wires running to the light or 7 or 6 and use the mains ground used to power supplies frames as ? I'm trying to limit a gaudy mess of wires going to my light. Maybe I could keep the power supplies in the stand and just run one cable with the DC output from the power supplies. In that case can I use a shared ground wire for all 6 channels? Last question is more for a different thread so answer if u can.
 
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
I definitely bit off more then I could chew with this entire DIY tank/stand/light/controller/ custom control board! At times this felt more like a job than a hobby to enjoy. I muddled through one little step every week or two as I finished the last 10% of my massive DIY build.

So now over 2 years since I started my rebuild with a move in between I'm finally at a point where I can start getting my Reef-Pi up and running my tank! I got the raspberry up and running several weeks back didn't go any further until the other day I tried to get my power controller up and running. I forgot I left the relay power unplugged so I went ahead and plugged it in and everything turned off so I immediately unplugged the power. That shouldn't be happening cause all the relays are wired NC. A couple hours later I was thinking about it and realized the relays are 5v and I had 12v going to them! #honestyinreefing Also at some point while the power was on I was moving wires around for some reason and the DC ground hit the AC rail that goes to my relays! It made quite a pop!

On Sunday I installed the buck to reduce 12v to 5v for the relays but I didn't mess around with the raspberry until yesterday. IT WOULDN'T TURN ON! I'm pretty sure I fried the Pi. I ordered another today and hopefully I learned a lesson to turn off all power when in the controller. Also I really hope I didn't fry anything else like the ML hat ? 20211221_110908.jpg
 
Last edited:

BlakeFL

Community Member
View Badges
Joined
Dec 8, 2012
Messages
29
Reaction score
31
Rating - 0%
0   0   0
I definitely bit off more then I could chew with this entire DIY tank/stand/light/controller/ custom control board! At times this felt more like a job than a hobby to enjoy. I muddled through one little step every week or two as I finished the last 10% of my massive DIY build.

So now over 2 years since I started my rebuild with a move in between I'm finally at a point where I can start getting my Reef-Pi up and running my tank! I got the raspberry up and running several weeks back didn't go any further until the other day I tried to get my power controller up and running. I forgot I left the relay power unplugged so I went ahead and plugged it in and everything turned off so I immediately unplugged the power. That shouldn't be happening cause all the relays are wired NC. A couple hours later I was thinking about it and realized the relays are 5v and I had 12v going to them! #honestyinreefing Also at some point while the power was on I was moving wires around for some reason and the DC ground hit the AC rail that goes to my relays! It made quite a pop!

On Sunday I installed the buck to reduce 12v to 5v for the relays but I didn't mess around with the raspberry until yesterday. IT WOULDN'T TURN ON! I'm pretty sure I fried the Pi. I ordered another today and hopefully I learned a lesson to turn off all power when in the controller. Also I really hope I didn't fry anything else like the ML hat ?
Hopefully not. I contacted Michael Lane to see if he will be making anymore of his hats and have not received a response.
 

Ranjib

7500 Club Member
View Badges
Joined
Apr 16, 2016
Messages
9,848
Reaction score
17,081
Location
Pleasant Hill, Concord
Rating - 0%
0   0   0
I definitely bit off more then I could chew with this entire DIY tank/stand/light/controller/ custom control board! At times this felt more like a job than a hobby to enjoy. I muddled through one little step every week or two as I finished the last 10% of my massive DIY build.

So now over 2 years since I started my rebuild with a move in between I'm finally at a point where I can start getting my Reef-Pi up and running my tank! I got the raspberry up and running several weeks back didn't go any further until the other day I tried to get my power controller up and running. I forgot I left the relay power unplugged so I went ahead and plugged it in and everything turned off so I immediately unplugged the power. That shouldn't be happening cause all the relays are wired NC. A couple hours later I was thinking about it and realized the relays are 5v and I had 12v going to them! #honestyinreefing Also at some point while the power was on I was moving wires around for some reason and the DC ground hit the AC rail that goes to my relays! It made quite a pop!

On Sunday I installed the buck to reduce 12v to 5v for the relays but I didn't mess around with the raspberry until yesterday. IT WOULDN'T TURN ON! I'm pretty sure I fried the Pi. I ordered another today and hopefully I learned a lesson to turn off all power when in the controller. Also I really hope I didn't fry anything else like the ML hat ? 20211221_110908.jpg
Ouch. Keep us posted.
 
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
The ML hat isn't fried so I needed to build some side circuitry to output 10v PWM instead of 3.3v to my 4 light channels. I also need 5 12v PWM control circuits for my Kaomer diy dosing pumps. And finally I needed to control 7 extra power circuits ,total of 15 circuits, which will come from the GPIO breakouts on the ML Hat. 20220607_173919.jpg 20220607_173911.jpg 20220607_173906.jpg 20220607_173855.jpg
 
Last edited:
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
I used code from @Ranjib setup guide substituting 5.0 in place of 4.3 and it seemed to work but the UI isn't running. I rebooted
and UI still not running.
20220607_190200.jpg
 

Ranjib

7500 Club Member
View Badges
Joined
Apr 16, 2016
Messages
9,848
Reaction score
17,081
Location
Pleasant Hill, Concord
Rating - 0%
0   0   0
how you are accessing reef-pi? on the pi if you have browser then just localhost will show the webpage. from other devices you have to type the pi's ip in the browser

try following if the ui is not loading through browser:

check if reef-pi server is running or not like this:
sudo systemctl status reef-pi.service
see the logs of reef-pi server while its running like this:
journalctl -u reef-pi.service
 
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
The script worked. Reefpi is running. I was able to get to the log in screen but I can't log in! Says wrong credentials! @robsworld78 I used your script to install reef-pi but it appears my user name and password aren't correct?
 

Sral

Valuable Member
View Badges
Joined
May 2, 2022
Messages
1,006
Reaction score
978
Location
Germany
Rating - 0%
0   0   0
The script worked. Reefpi is running. I was able to get to the log in screen but I can't log in! Says wrong credentials! @robsworld78 I used your script to install reef-pi but it appears my user name and password aren't correct?
Standard credentials for reef-Pi login set by @robsworld78 script is:
Name: reef-pi
Pass: reef-pi

worked for me last evening. The name and password you set is for the Pi itself.
 

robsworld78

Well-Known Member
View Badges
Joined
Feb 14, 2020
Messages
985
Reaction score
1,325
Location
Edmonton, Canada
Rating - 0%
0   0   0
The script worked. Reefpi is running. I was able to get to the log in screen but I can't log in! Says wrong credentials! @robsworld78 I used your script to install reef-pi but it appears my user name and password aren't correct?
Yeah as @Sral mentioned the name and password you choose during the install script is for the Pi, not reef-pi.
 
OP
OP
Matt Carden

Matt Carden

Valuable Member
View Badges
Joined
Apr 13, 2018
Messages
1,647
Reaction score
4,086
Location
Detroit Metro
Rating - 0%
0   0   0
I had a h**l of a time getting my equipment relays to function properly. I don't know if it's the reef-pi programming or the robo-tank installation files or the ML hat or the fact that i shorted Line to the low voltage ground months back, but only 2 or 3 out of 16 of the GPIO addresses were correctly controlling the connected equipment. I found 3 GPIO that didn't work no matter what. I ended up reassigning port numbers until the intended equipment functioned when turning on or off in the equipment tab.

I now have the ATO and temperature controller up and running. Also set up timers for my fuge lights.

The Display light controller is another issue. Reef-pi won't recognize the pca9685 that is integrated into the ML hat. @robsworld78 @Ranjib @Michael Lane
 

robsworld78

Well-Known Member
View Badges
Joined
Feb 14, 2020
Messages
985
Reaction score
1,325
Location
Edmonton, Canada
Rating - 0%
0   0   0
I had a h**l of a time getting my equipment relays to function properly. I don't know if it's the reef-pi programming or the robo-tank installation files or the ML hat or the fact that i shorted Line to the low voltage ground months back, but only 2 or 3 out of 16 of the GPIO addresses were correctly controlling the connected equipment. I found 3 GPIO that didn't work no matter what. I ended up reassigning port numbers until the intended equipment functioned when turning on or off in the equipment tab.

I now have the ATO and temperature controller up and running. Also set up timers for my fuge lights.

The Display light controller is another issue. Reef-pi won't recognize the pca9685 that is integrated into the ML hat. @robsworld78 @Ranjib @Michael Lane
Sorry that didn't go well, sounds like during the install script you selected the option for a Robo-Tank controller, that replaces the database and has all the connectors assigned for the controller. The ML board will be using different GPIO's so you'll need to change all the connectors that's why all the relays didn't work as expected.

In the Pi SSH terminal if you run the following command do you see the pca9685 listed? It should show up as 0x40, in reef-pi for the driver address you would use 64.
 
Back
Top