reef-pi :: An opensource reef tank controller based on Raspberry Pi.

[T-MIKE]

@Ranjib

I did a search of old posts and installed gdrive cli client and motion(4.0-1) with apt. What else do I need to do make live streaming and gdrive upload work? I don't see the files on gdrive and it is still only showing the last photo taken. Thank you! Good work here!

Edit:
Actually going back and reading the posts again I don't think reef-pi works with motion yet. What else do I need to do to get gdrive to work?

 

[Ranjib]

@Ranjib

I did a search of old posts and installed gdrive cli client and motion(4.0-1) with apt. What else do I need to do make live streaming and gdrive upload work? I don't see the files on gdrive and it is still only showing the last photo taken. Thank you! Good work here!

Edit:
Actually going back and reading the posts again I don't think reef-pi works with motion yet. What else do I need to do to get gdrive to work?

have you configured the gdrive cli with your google credentials? reef-pi will log the errors , you can check it for pointers (more on the troubleshooting guide). reef-pi just embeds the video component which can be provided by motion. I use it sporadically as and when im going out of home. Camera and video operations significantly reduces Pi's performance, for my zero based builds I run them headless and with no camera/video.
I do want to better motion (optical image analysis in general) gears in reef-pi, but thats not something of a priority in near future.

 

[T-MIKE]

have you configured the gdrive cli with your google credentials? reef-pi will log the errors , you can check it for pointers (more on the troubleshooting guide). reef-pi just embeds the video component which can be provided by motion. I use it sporadically as and when im going out of home. Camera and video operations significantly reduces Pi's performance, for my zero based builds I run them headless and with no camera/video.
I do want to better motion (optical image analysis in general) gears in reef-pi, but thats not something of a priority in near future.

I got the log and the PWM lighting control does not appear to be working as well. What should I do?

As for the gdrive, it looks like it's using the command "drive push" but that's not documented on the gdrive github. I downloaded gdrive-linux-rpi and ran "gdrive-linux-rpi about" and it is connected to my account at the moment. This is the CLI I'm using that was mentioned in previous posts: https://github.com/gdrive-org/gdrive

I understand that motion uses a lot of resources but I would like to get it working for now. I installed motion with apt-get. Do I need to build it from source?

I'm running reef-pi 2.3 on Raspberry Pi Zero W with Raspbian.

May 21 09:02:21 reefpi reef-pi[235]: 2019/05/21 09:02:21 Camera subsystem: Image captured: /var/lib/reef-pi/images/09-02-01-Tue-May-21-2019.png
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 ERROR: Failed to upload image. Command: drive push -quiet -destination reef-pi-images -files /var/lib/reef-pi/images/09-02-01-Tue-May-21-2019.png Error: exec: "drive": executable file not found in $PATH
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 lighting-subsystem: Setting PWM value: 50  at channel: 1
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 Setting pwm driver: rpi pin: 1 value: 50
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 ERROR: lighting-subsystem: Failed to set pwm value. Error: write /sys/class/pwm/pwmchip0/pwm1/duty_cycle: invalid argument
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 lighting-subsystem: Setting PWM value: 50  at channel: 0
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 Setting pwm driver: rpi pin: 0 value: 50
May 21 09:02:31 reefpi reef-pi[235]: 2019/05/21 09:02:31 ERROR: lighting-subsystem: Failed to set pwm value. Error: write /sys/class/pwm/pwmchip0/pwm0/duty_cycle: invalid argument

 

[T-MIKE]

I tried updating the jack for the pwm light control and got this message, "{"error":"Failed to update. Error: write /sys/class/pwm/pwmchip0/pwm0/period: invalid argument"} | HTTP 500".

I think I had this same problem when I first installed reef-pi and I deleted the database to start over and didn't get the message the 2nd time but now it's showing up again.

EDIT:
Deleting database and starting over again.

EDIT 2:
Deleted database but still get same error when setting up jack. I selected rpi and tried to use pins "0,1".

EDIT:
Deleted database and re-installed with "sudo dpkg -i reef-pi-2.3-pi0.deb", same error. If I use pca9685 with "0,1" then I get no error.

 

[Zippyfear]

I'd like to deploy at least 2 cameras, one on the tank, and one under for the sump. what inexpensive cameras is everyone using, or looking at using?

 

[T-MIKE]

I'd like to deploy at least 2 cameras, one on the tank, and one under for the sump. what inexpensive cameras is everyone using, or looking at using?

I'm currently using Yi Home webcams, I got a pack of 4 or five for $75 on Amazon. Not sure if they still have that deal.

 

[DirtDiggler2823]

@Ranjib, @theatrus, what calibration solutions do I need to order with my probe?

 

[Ranjib]

@Ranjib, @theatrus, what calibration solutions do I need to order with my probe?

I calibrated against tank water directly , you can try ph 4, and 7 or 7 and 10. Any two known sample at the same temperature as your tank

 

[DirtDiggler2823]

I calibrated against tank water directly , you can try ph 4, and 7 or 7 and 10. Any two known sample at the same temperature as your tank

Ok. I'll need the commands for calibration as well since I don't believe its built into the UI that works with the pico boards.

 

[Bigtrout]

I tried updating the jack for the pwm light control and got this message, "{"error":"Failed to update. Error: write /sys/class/pwm/pwmchip0/pwm0/period: invalid argument"} | HTTP 500".

I think I had this same problem when I first installed reef-pi and I deleted the database to start over and didn't get the message the 2nd time but now it's showing up again.

EDIT:
Deleting database and starting over again.

EDIT 2:
Deleted database but still get same error when setting up jack. I selected rpi and tried to use pins "0,1".

EDIT:
Deleted database and re-installed with "sudo dpkg -i reef-pi-2.3-pi0.deb", same error. If I use pca9685 with "0,1" then I get no error.

If you are using the raspberry pi pins then install reef pi 2.2, if using the pca9685 use 2.3.

There was a frequency issue fixed for the pca9685 in 2.3 but the consensus is it broke the rasp pi pwm.

 

[T-MIKE]

If you are using the raspberry pi pins then install reef pi 2.2, if using the pca9685 use 2.3.

There was a frequency issue fixed for the pca9685 in 2.3 but the consensus is it broke the rasp pi pwm.

Ah thanks! I did not see that post. By the way, do you know if the frequency on the UI is in Hz or kHz?

 

[Bigtrout]

Its in hz...the pca9685 can do 40hz to 1500hz,
Not sure what the raspberry pi can do in reef pi

 

[T-MIKE]

The light arrived today and it is actually PWM controlled so it will work much easier with reef-pi. The PWM signal is generated by a NE555 chip.

The WiFi version is $40 more which I think is worth the money but I already got it so will be using reef-pi with it.

 

[T-MIKE]

@Ranjib

Can you tell me the gdrive cli you are using? Thank you.

 

[Ranjib]

@Ranjib

Can you tell me the gdrive cli you are using? Thank you.

https://github.com/odeke-em/drive

 

[Ranjib]

Its in hz...the pca9685 can do 40hz to 1500hz,
Not sure what the raspberry pi can do in reef pi

I have read about 50 MHz , but never tested it

 

[Ranjib]

Ok. I'll need the commands for calibration as well since I don't believe its built into the UI that works with the pico boards.

Sure. Here is the rundown of calibration:
1) Setup the ph probe by creating a new driver in configuration -> drivers, specify ph-board as type and number of channels 0, i2c address 64. Create an analog input under Configuration -> connectors and associate the new driver, pin 0 with it. Create a new ph monitor and associate the analog input with it. Enable it. At this point you'll start seeing ph readings, usually in the range of -8K.
2) Keep your probe in reference solution(s) and note down the reading. Create a file named calibration.json with observed and expected values. For me it was like this:

[
 {"expected":8.21, "observed": -8768},
 {"expected":8.12, "observed": -8189}
]

Note: i used my tanks water (i.e. probe hooked up to tank) and hanna ph checker for my calibration. All we need is one or two set of points each specifying expected vs observed value
3) Disable the probe. Apply calibration using api. Since reef-pi uses cookie for session based authentication, first we'll signin and save the cookie via api, and then use the cookie to make calibration api request with the json file

curl -c cookie.txt -X POST -d '{"user":"reef-pi","password":"reef-pi"}' http://<IP>/auth/signin
curl -b cookie.txt -X POST -d @calibration.json http://<IP>/api/phprobes/1/calibrate

4) Enable the ph monitor via ui

you'll need a build from master. You know how to do that? or want me to publish one?

 

[DirtDiggler2823]

Sure. Here is the rundown of calibration:
1) Setup the ph probe by creating a new driver in configuration -> drivers, specify ph-board as type and number of channels 0, i2c address 64. Create an analog input under Configuration -> connectors and associate the new driver, pin 0 with it. Create a new ph monitor and associate the analog input with it. Enable it. At this point you'll start seeing ph readings, usually in the range of -8K.
2) Keep your probe in reference solution(s) and note down the reading. Create a file named calibration.json with observed and expected values. For me it was like this:

[
 {"expected":8.21, "observed": -8768},
 {"expected":8.12, "observed": -8189}
]

Note: i used my tanks water (i.e. probe hooked up to tank) and hanna ph checker for my calibration. All we need is one or two set of points each specifying expected vs observed value
3) Disable the probe. Apply calibration using api. Since reef-pi uses cookie for session based authentication, first we'll signin and save the cookie via api, and then use the cookie to make calibration api request with the json file

curl -c cookie.txt -X POST -d '{"user":"reef-pi","password":"reef-pi"}' http://<IP>/auth/signin
curl -b cookie.txt -X POST -d @calibration.json http://<IP>/api/phprobes/1/calibrate

4) Enable the ph monitor via ui

you'll need a build from master. You know how to do that? or want me to publish one?

We may need to pursue that. I probably won't be the only pico board user who needs help with this. Going to purchase calibration solution and a probe now.

 

[Ranjib]

We may need to pursue that. I probably won't be the only pico board user who needs help with this. Going to purchase calibration solution and a probe now.

you are using pico board? My instruction was for ph board.
I'll update the pico board thread with ph probe specific instruction, we can cross post here :-)

 

[DirtDiggler2823]

you are using pico board? My instruction was for ph board.
I'll update the pico board thread with ph probe specific instruction, we can cross post here :-)

Super. Yes, I'm using a pico board, and I have the board with the updated driver on it.