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

[sjeff35]

On this note,
I'll be adding support for sht31-D temperature/humidity probe in reef-pi 2.0. I have a feeling my ATO intake anomaly has to do with these two

@Ranjib were you able to incorporate this yet? I haven't seen anything mentioned, but I was going to ask about it and did some searching through the thread and found this post.

Thanks

 

[Ranjib]

@Ranjib were you able to incorporate this yet? I haven't seen anything mentioned, but I was going to ask about it and did some searching through the thread and found this post.

Thanks

Not yet. I am working on improving the UI currently. Next focus will be documentations, and then finally the macro feature. After that 2.0 release, after that new drivers (sht31-D, mcp4725 & mcp23017)

 

[njtiger aquariums]

can never have too much technology lol

 

[sjeff35]

Not yet. I am working on improving the UI currently. Next focus will be documentations, and then finally the macro feature. After that 2.0 release, after that new drivers (sht31-D, mcp4725 & mcp23017)

Thanks, I thought maybe I had missed something. From the first time I started playing with Reef-pi I was thinking it would be nice to have a built in DHT11 or 22 to report back on the ambient conditions.

 

[Ranjib]

Thanks, I thought maybe I had missed something. From the first time I started playing with Reef-pi I was thinking it would be nice to have a built in DHT11 or 22 to report back on the ambient conditions.

Meanwhile, you can always use a ds18b20 outside the aquarium to get room temperature, now that reef-pi supports multiple temperature probe. We have to wait till the sht31-d integration lands. Currently I do not have any plan to integrate dht- series sensor though, they are relatively inexpensive but will consume GPIO pins, sht31-d is more precise, bit costly, but i2c based, so no additional pin requirement

 

[sjeff35]

Cool. I'm using a 2nd ds18b20 for room temp

 

[janos]

Hi to all,would like to ask some help with the timer.Try to turn my sump light on at 18.00 and off at 9.00 not working for some reason.Thank you

 

[Ranjib]

Hi to all,would like to ask some help with the timer.Try to turn my sump light on at 18.00 and off at 9.00 not working for some reason.Thank you

Does your reef-pi time reflects the correct local time, i.e. the summary information below the dashboard, where it says "Sun Jul8 03:36:47", is that correct?
If its correct, next check the reef-pi log around that time

journalctl --since "2018-07-07 17:00" --until "2018-07-07 17:02"

you should something similar to this(time, pin etc details would be different of course):

Jul 07 17:14:00 dev-zero reef-pi[8605]: 2018/07/07 17:14:00 Setting GPIO Pin: 24 State: 1

 

[janos]

Hi Ranjib thank you for your time and help The time is not correct,i think i need to adjust.the rasbi-config would be the right place for that?

 

[Ranjib]

Hi Ranjib thank you for your time and help The time is not correct,i think i need to adjust.the rasbi-config would be the right place for that?

yes.
here is a tutorial for that: https://learn.adafruit.com/adafruit...-2-first-time-configuration/changing-timezone

 

[janos]

Thank you now is working.Hope you will stay more in the forum,with this project,everybody need your help.Thank you again.

 

[Ranjib]

Thank you now is working.Hope you will stay more in the forum,with this project,everybody need your help.Thank you again.

I would definitely stay active, but I do think things will be better once we sort out the documentation (i'll get back to that soon, right before 2.0 release).

 

[philshel]

@Ranjib, sorry to bother you but I'm having an issue. I'm trying to set up the lighting controller circuit using the pi's pwm on ver 1.5. I get no voltage change and when I check the reef-pi status I find an error "ERROR: lighting-subsystem: Failed to set pwm value. Error: open /sys/class/pwm/pwmchip0/export: no such file or directory". I'm using gpio 18 and 19, set up just as I would using the PCA9685 breakout board. What am I doing wrong?

 

[Ranjib]

@Ranjib, sorry to bother you but I'm having an issue. I'm trying to set up the lighting controller circuit using the pi's pwm on ver 1.5. I get no voltage change and when I check the reef-pi status I find an error "ERROR: lighting-subsystem: Failed to set pwm value. Error: open /sys/class/pwm/pwmchip0/export: no such file or directory". I'm using gpio 18 and 19, set up just as I would using the PCA9685 breakout board. What am I doing wrong?

Did you enable pwm in raspberry pi? You have to edit the /boot/config.txt to load the pwm modules

 

[philshel]

Did you enable pwm in raspberry pi? You have to edit the /boot/config.txt to load the pwm modules

That would be a negative, I did not know I had to do anything like that. Is it obvious once I get there?

 

[Ranjib]

Did you enable pwm in raspberry pi? You have to edit the /boot/config.txt to load the pwm modules

Example here : http://blog.oddbit.com/2017/09/26/some-notes-on-pwm-on-the-raspberry-pi/
Just edit the /boot/config.txt and dtoverlay pwm2chan module, that’s all,

 

[Ranjib]

That would be a negative, I did not know I had to do anything like that. Is it obvious once I get there?

Nah , you know you are using a feature that was not released till recently (not reef-pi, the actual pi and Linux kernel)

 

[philshel]

Example here : http://blog.oddbit.com/2017/09/26/some-notes-on-pwm-on-the-raspberry-pi/
Just edit the /boot/config.txt and dtoverlay pwm2chan module, that’s all,

Ummm, that's a lot more than editing /boot/config.txt. Not sure I'm up to that.

 

[Ranjib]

Ummm, that's a lot more than editing /boot/config.txt. Not sure I'm up to that.

I think you mis-understood. you dont have to do anything other than editing /boot/config.txt and reboot pi. I shared that article because it has the example of what needs to be changed in /boot/config.txt. You dont need anything else from that article.

Just to summarize, you need the following line in /boot/config.txt

dtoverlay=pwm-2chan

and reboot pi. Thats all you need to use reef-pi with Pi based pwm (2 channels only)

 

[philshel]

I think you mis-understood. you dont have to do anything other than editing /boot/config.txt and reboot pi. I shared that article because it has the example of what needs to be changed in /boot/config.txt. You dont need anything else from that article.

Just to summarize, you need the following line in /boot/config.txt

dtoverlay=pwm-2chan

and reboot pi. Thats all you need to use reef-pi with Pi based pwm (2 channels only)

Ok, I'll give that a try. Thank you as always.