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

Diamond1 · Dec 21, 2018

Johan Fe Scheepers said:
I have tried the min and start at 0, 25, 50, 75, 100, but no luck.

And yes dtoverlay=pwm-2chan is in my boot.txt

Have you tried changing the pwm frequency? 100, 200, 500 etc..?

Johan Fe Scheepers · Dec 21, 2018

Th

Diamond1 said:
Have you tried changing the pwm frequency? 100, 200, 500 etc..?

Thanks for your help added start_x=0 to the /boot/config.txt

Bigtrout · Dec 22, 2018

On XMAS day Santa brings me the stuff to start my build, but the thing that was a sticking point was my led lights which use common cathode to tie the channels together, which meant using p channel mosfets as high side switches and building custom circuitry to interface them...until now...

SCORE...a prebuild breakout board that uses the pca9685 signal(any 3.3 to 10v pwm) to run a p channel mosfet, optically isolated from the PCA and usable to 1khz.

https://www.dfrobot.com/product-156...XU8Rg8-TsePc0pT8DzzM6AxN8NvCdUOhoCGv8QAvD_BwE

Bigtrout · Dec 22, 2018

Mrs. Santa was defensive about getting the mail today and wouldnt show me. Im thinking the ML reefkeepers reef pi hat arrived...thanks Mike L!!!

I will start my build thread once I see what all I get and get started, I gave Mrs Santa a list with options if she couldnt find something.

I should cross post my build on Planted tank.net forums as well, I am thinking we could get even more people interested in reef pi. I know I'm a freshwater guy but reef tanks and good planted tanks all could use a great controller and when the pH sensor works, it would be a great way to monitor and control CO2 for planted tanks.

Jonathan Troutt · Dec 23, 2018

@Ranjib

So now that the main 3 modules are done, I started setting up reef-pi to my likings.

With the lighting profile. I thought there was one hour increments instead of 2 hours? Has it always been 2 hour increments? Is there way to change that? Not complaining just wondering.

Rip Van Winkle · Dec 23, 2018

@Ranjib
Haven't been keeping up, so I haven't read all the pages for this thread. Not sure if you've seen this before or not but in case you haven't I posted here.

Peristaltic Pump DIY

Adding this in case you want to pursue:

Quad Doser With Improved Design
https://www.thingiverse.com/thing:1134817

He's dosing to his tank. Nice.

Ranjib · Dec 23, 2018

Jonathan Troutt said:
@Ranjib

So now that the main 3 modules are done, I started setting up reef-pi to my likings.

With the lighting profile. I thought there was one hour increments instead of 2 hours? Has it always been 2 hour increments? Is there way to change that? Not complaining just wondering.

It has always been 2 hrs interval. I intend to make it customizable in 3.0

Jonathan Troutt · Dec 23, 2018

Ranjib said:
It has always been 2 hrs interval. I intend to make it customizable in 3.0

Ok I must have been thinking about something else. Not a big deal though. You sir and the others who have programmed reef-pi have done an amazing job! Thank you for all your hard work!

Ryan115 · Dec 23, 2018

@Ranjib I'm still working on diagnosing the high CPU and RAM on the latest install.

The big drop in the middle of the historic was from a restart. Then it looks like it was happy for a few days. I cant think of anything right now that caused it to start increasing a few days ago.
Looking at the journal, I think it was still unhappy setting 0 for all of the configured GPIO pins (all 16 from the PCA9685).
Would it be possible to have a disable button on the lighting tab, as there is for the timers, temp, etc...?

I removed most of the PWM pins and went to reload and I get this message in the journal.
I am holding off rebooting to see if you wanted me to test anything.

Code:

Dec 23 10:36:15 raspberrypi reef-pi[2888]: 2018/12/23 10:36:15 ERROR: Failed to reload reef-pi. Output:. Error: fork/exec /bin/systemctl: cannot allocate memory
Dec 23 10:36:15 raspberrypi reef-pi[2888]: 2018/12/23 10:36:15 ERROR: GET /api/admin/reload Failed to reload reef-pi. Output:. Error: fork/exec /bin/systemctl: cannot allocate memory

Ranjib · Dec 24, 2018

Ryan115 said:
@Ranjib I'm still working on diagnosing the high CPU and RAM on the latest install.

The big drop in the middle of the historic was from a restart. Then it looks like it was happy for a few days. I cant think of anything right now that caused it to start increasing a few days ago.
Looking at the journal, I think it was still unhappy setting 0 for all of the configured GPIO pins (all 16 from the PCA9685).
Would it be possible to have a disable button on the lighting tab, as there is for the timers, temp, etc...?

I removed most of the PWM pins and went to reload and I get this message in the journal.
I am holding off rebooting to see if you wanted me to test anything.

Code:

Dec 23 10:36:15 raspberrypi reef-pi[2888]: 2018/12/23 10:36:15 ERROR: Failed to reload reef-pi. Output:. Error: fork/exec /bin/systemctl: cannot allocate memory Dec 23 10:36:15 raspberrypi reef-pi[2888]: 2018/12/23 10:36:15 ERROR: GET /api/admin/reload Failed to reload reef-pi. Output:. Error: fork/exec /bin/systemctl: cannot allocate memory

thats does not look good. Whats the output of

Code:

ps aux

Ryan115 · Dec 24, 2018

reef-pi has been bouncing up and down in CPU usage in top as well

Code:

pi@raspberrypi:~ $ ps aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  1.2  27040  5628 ?        Ss   Dec18   0:17 /sbin/init
root         2  0.0  0.0      0     0 ?        S    Dec18   0:00 [kthreadd]
root         4  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/0:0H]
root         6  0.0  0.0      0     0 ?        I<   Dec18   0:00 [mm_percpu_wq]
root         7  0.0  0.0      0     0 ?        S    Dec18   2:17 [ksoftirqd/0]
root         8  0.0  0.0      0     0 ?        S    Dec18   0:00 [kdevtmpfs]
root         9  0.0  0.0      0     0 ?        I<   Dec18   0:00 [netns]
root        11  0.0  0.0      0     0 ?        S    Dec18   0:00 [khungtaskd]
root        12  0.0  0.0      0     0 ?        S    Dec18   0:00 [oom_reaper]
root        13  0.0  0.0      0     0 ?        I<   Dec18   0:00 [writeback]
root        14  0.0  0.0      0     0 ?        S    Dec18   0:00 [kcompactd0]
root        15  0.0  0.0      0     0 ?        I<   Dec18   0:00 [crypto]
root        16  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kblockd]
root        17  0.0  0.0      0     0 ?        I<   Dec18   0:00 [watchdogd]
root        18  0.0  0.0      0     0 ?        I<   Dec18   0:00 [rpciod]
root        19  0.0  0.0      0     0 ?        I<   Dec18   0:00 [xprtiod]
root        22  0.0  0.0      0     0 ?        S    Dec18   0:00 [kswapd0]
root        23  0.0  0.0      0     0 ?        I<   Dec18   0:00 [nfsiod]
root        33  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kthrotld]
root        34  0.0  0.0      0     0 ?        I<   Dec18   0:00 [iscsi_eh]
root        35  0.0  0.0      0     0 ?        I<   Dec18   0:00 [dwc_otg]
root        36  0.0  0.0      0     0 ?        I<   Dec18   0:00 [DWC Notificatio]
root        37  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-slot/0]
root        38  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-recy/0]
root        39  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-sync/0]
root        40  0.0  0.0      0     0 ?        S    Dec18   0:00 [vchiq-keep/0]
root        41  0.0  0.0      0     0 ?        S<   Dec18   0:00 [SMIO]
root        42  0.0  0.0      0     0 ?        S    Dec18   6:02 [irq/86-mmc1]
root        45  0.0  0.0      0     0 ?        S    Dec18   0:32 [mmcqd/0]
root        46  0.0  0.0      0     0 ?        S    Dec18   0:08 [jbd2/mmcblk0p2-]
root        47  0.0  0.0      0     0 ?        I<   Dec18   0:00 [ext4-rsv-conver]
root        48  0.0  0.0      0     0 ?        I<   Dec18   0:00 [ipv6_addrconf]
root        84  0.3  1.5  28776  6860 ?        Ss   Dec18  24:22 /lib/systemd/systemd-journald
root       101  0.0  0.5  14324  2564 ?        Ss   Dec18   0:02 /lib/systemd/systemd-udevd
root       128  0.3  0.0      0     0 ?        S    Dec18  24:36 [w1_bus_master1]
root       137  0.0  0.0      0     0 ?        S    Dec18   0:00 [spi0]
root       153  0.0  0.0      0     0 ?        I<   Dec18   0:00 [cfg80211]
root       160  0.0  0.0      0     0 ?        I<   Dec18   0:00 [brcmf_wq/mmc1:0]
root       161  0.0  0.0      0     0 ?        S    Dec18   1:32 [brcmf_wdog/mmc1]
systemd+   186  0.0  0.8  17260  3700 ?        Ssl  Dec18   0:02 /lib/systemd/systemd-timesyncd
root       209  0.0  0.5   5288  2280 ?        Ss   Dec18   0:02 /usr/sbin/cron -f
root       210  0.0  0.6  22848  2932 ?        Ssl  Dec18   4:42 /usr/sbin/rsyslogd -n
nobody     216  0.0  0.4   5284  2216 ?        Ss   Dec18   0:08 /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --socket /run/thd.socket
avahi      233  0.0  0.6   6500  3012 ?        Ss   Dec18   0:27 avahi-daemon: running [raspberrypi.local]
message+   235  0.0  0.7   6496  3160 ?        Ss   Dec18   0:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd
root       244  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/0:1H]
avahi      252  0.0  0.3   6384  1376 ?        S    Dec18   0:00 avahi-daemon: chroot helper
root       255  0.0  0.9   7400  4016 ?        Ss   Dec18   0:02 /lib/systemd/systemd-logind
root       387  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/u3:0]
root       388  0.0  0.1   2080   552 ?        S    Dec18   0:00 /usr/bin/hciattach /dev/serial1 bcm43xx 3000000 flow - b8:27:eb:77:da:a4
root       390  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/u3:2]
root       393  0.0  0.8   7064  3620 ?        Ss   Dec18   0:00 /usr/lib/bluetooth/bluetoothd
root       407  0.0  0.8  10124  3588 ?        Ss   Dec18   0:12 wpa_supplicant -B -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dnl80211,w
root       468  0.0  0.3   2868  1416 ?        Ss   Dec18   0:02 /sbin/dhcpcd -q -w
root       483  0.0  1.0  10188  4836 ?        Ss   Dec18   0:00 /usr/sbin/sshd -D
root       484  0.0  0.4   3956  1808 ttyS0    Ss+  Dec18   0:00 /sbin/agetty --keep-baud 115200,38400,9600 ttyS0 vt220
root       485  0.0  0.3   4180  1488 tty1     Ss+  Dec18   0:00 /sbin/agetty --noclear tty1 linux
root      2888  5.8 57.4 802356 254928 ?       Ssl  Dec20 298:16 /usr/bin/reef-pi daemon -config /etc/reef-pi/config.yml
root      6841  0.0  0.0      0     0 ?        I    02:46   0:02 [kworker/u2:1]
root      6876  0.0  0.0      0     0 ?        I    04:00   0:00 [kworker/0:0]
root      6943  0.0  0.0      0     0 ?        I    05:25   0:00 [kworker/u2:0]
root      7176  0.0  0.0      0     0 ?        I    06:43   0:00 [kworker/0:2]
root      7177  0.0  0.0      0     0 ?        I    06:50   0:00 [kworker/0:1]
root      7178  0.6  0.0      0     0 ?        I    06:51   0:00 [kworker/u2:2]
root      7179  1.8  1.2  11508  5656 ?        Ss   06:52   0:00 sshd: pi [priv]
pi        7184  1.1  1.3   9652  5796 ?        Ss   06:53   0:00 /lib/systemd/systemd --user
pi        7187  0.0  0.5  28704  2620 ?        S    06:53   0:00 (sd-pam)
pi        7194  0.0  0.9  11508  4140 ?        S    06:53   0:00 sshd: pi@pts/0
pi        7197  3.1  0.8   5824  3792 pts/0    Ss+  06:53   0:00 -bash
root      7212  4.0  1.2  11508  5688 ?        Ss   06:53   0:00 sshd: pi [priv]
pi        7222  1.7  0.9  11508  4124 ?        S    06:53   0:00 sshd: pi@pts/1
pi        7225 14.7  0.8   5824  3792 pts/1    Ss   06:53   0:00 -bash
pi        7240  0.0  0.6   7728  2960 pts/1    R+   06:53   0:00 ps aux

CPU spikes are better and RAM usage has stopped growing, since I deleted all of the other PCA9685 pins

theatrus · Dec 25, 2018

Ryan115 said:

reef-pi has been bouncing up and down in CPU usage in top as well

Code:

pi@raspberrypi:~ $ ps aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  1.2  27040  5628 ?        Ss   Dec18   0:17 /sbin/init
root         2  0.0  0.0      0     0 ?        S    Dec18   0:00 [kthreadd]
root         4  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/0:0H]
root         6  0.0  0.0      0     0 ?        I<   Dec18   0:00 [mm_percpu_wq]
root         7  0.0  0.0      0     0 ?        S    Dec18   2:17 [ksoftirqd/0]
root         8  0.0  0.0      0     0 ?        S    Dec18   0:00 [kdevtmpfs]
root         9  0.0  0.0      0     0 ?        I<   Dec18   0:00 [netns]
root        11  0.0  0.0      0     0 ?        S    Dec18   0:00 [khungtaskd]
root        12  0.0  0.0      0     0 ?        S    Dec18   0:00 [oom_reaper]
root        13  0.0  0.0      0     0 ?        I<   Dec18   0:00 [writeback]
root        14  0.0  0.0      0     0 ?        S    Dec18   0:00 [kcompactd0]
root        15  0.0  0.0      0     0 ?        I<   Dec18   0:00 [crypto]
root        16  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kblockd]
root        17  0.0  0.0      0     0 ?        I<   Dec18   0:00 [watchdogd]
root        18  0.0  0.0      0     0 ?        I<   Dec18   0:00 [rpciod]
root        19  0.0  0.0      0     0 ?        I<   Dec18   0:00 [xprtiod]
root        22  0.0  0.0      0     0 ?        S    Dec18   0:00 [kswapd0]
root        23  0.0  0.0      0     0 ?        I<   Dec18   0:00 [nfsiod]
root        33  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kthrotld]
root        34  0.0  0.0      0     0 ?        I<   Dec18   0:00 [iscsi_eh]
root        35  0.0  0.0      0     0 ?        I<   Dec18   0:00 [dwc_otg]
root        36  0.0  0.0      0     0 ?        I<   Dec18   0:00 [DWC Notificatio]
root        37  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-slot/0]
root        38  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-recy/0]
root        39  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-sync/0]
root        40  0.0  0.0      0     0 ?        S    Dec18   0:00 [vchiq-keep/0]
root        41  0.0  0.0      0     0 ?        S<   Dec18   0:00 [SMIO]
root        42  0.0  0.0      0     0 ?        S    Dec18   6:02 [irq/86-mmc1]
root        45  0.0  0.0      0     0 ?        S    Dec18   0:32 [mmcqd/0]
root        46  0.0  0.0      0     0 ?        S    Dec18   0:08 [jbd2/mmcblk0p2-]
root        47  0.0  0.0      0     0 ?        I<   Dec18   0:00 [ext4-rsv-conver]
root        48  0.0  0.0      0     0 ?        I<   Dec18   0:00 [ipv6_addrconf]
root        84  0.3  1.5  28776  6860 ?        Ss   Dec18  24:22 /lib/systemd/systemd-journald
root       101  0.0  0.5  14324  2564 ?        Ss   Dec18   0:02 /lib/systemd/systemd-udevd
root       128  0.3  0.0      0     0 ?        S    Dec18  24:36 [w1_bus_master1]
root       137  0.0  0.0      0     0 ?        S    Dec18   0:00 [spi0]
root       153  0.0  0.0      0     0 ?        I<   Dec18   0:00 [cfg80211]
root       160  0.0  0.0      0     0 ?        I<   Dec18   0:00 [brcmf_wq/mmc1:0]
root       161  0.0  0.0      0     0 ?        S    Dec18   1:32 [brcmf_wdog/mmc1]
systemd+   186  0.0  0.8  17260  3700 ?        Ssl  Dec18   0:02 /lib/systemd/systemd-timesyncd
root       209  0.0  0.5   5288  2280 ?        Ss   Dec18   0:02 /usr/sbin/cron -f
root       210  0.0  0.6  22848  2932 ?        Ssl  Dec18   4:42 /usr/sbin/rsyslogd -n
nobody     216  0.0  0.4   5284  2216 ?        Ss   Dec18   0:08 /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --socket /run/thd.socket
avahi      233  0.0  0.6   6500  3012 ?        Ss   Dec18   0:27 avahi-daemon: running [raspberrypi.local]
message+   235  0.0  0.7   6496  3160 ?        Ss   Dec18   0:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd
root       244  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/0:1H]
avahi      252  0.0  0.3   6384  1376 ?        S    Dec18   0:00 avahi-daemon: chroot helper
root       255  0.0  0.9   7400  4016 ?        Ss   Dec18   0:02 /lib/systemd/systemd-logind
root       387  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/u3:0]
root       388  0.0  0.1   2080   552 ?        S    Dec18   0:00 /usr/bin/hciattach /dev/serial1 bcm43xx 3000000 flow - b8:27:eb:77:da:a4
root       390  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/u3:2]
root       393  0.0  0.8   7064  3620 ?        Ss   Dec18   0:00 /usr/lib/bluetooth/bluetoothd
root       407  0.0  0.8  10124  3588 ?        Ss   Dec18   0:12 wpa_supplicant -B -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dnl80211,w
root       468  0.0  0.3   2868  1416 ?        Ss   Dec18   0:02 /sbin/dhcpcd -q -w
root       483  0.0  1.0  10188  4836 ?        Ss   Dec18   0:00 /usr/sbin/sshd -D
root       484  0.0  0.4   3956  1808 ttyS0    Ss+  Dec18   0:00 /sbin/agetty --keep-baud 115200,38400,9600 ttyS0 vt220
root       485  0.0  0.3   4180  1488 tty1     Ss+  Dec18   0:00 /sbin/agetty --noclear tty1 linux
root      2888  5.8 57.4 802356 254928 ?       Ssl  Dec20 298:16 /usr/bin/reef-pi daemon -config /etc/reef-pi/config.yml
root      6841  0.0  0.0      0     0 ?        I    02:46   0:02 [kworker/u2:1]
root      6876  0.0  0.0      0     0 ?        I    04:00   0:00 [kworker/0:0]
root      6943  0.0  0.0      0     0 ?        I    05:25   0:00 [kworker/u2:0]
root      7176  0.0  0.0      0     0 ?        I    06:43   0:00 [kworker/0:2]
root      7177  0.0  0.0      0     0 ?        I    06:50   0:00 [kworker/0:1]
root      7178  0.6  0.0      0     0 ?        I    06:51   0:00 [kworker/u2:2]
root      7179  1.8  1.2  11508  5656 ?        Ss   06:52   0:00 sshd: pi [priv]
pi        7184  1.1  1.3   9652  5796 ?        Ss   06:53   0:00 /lib/systemd/systemd --user
pi        7187  0.0  0.5  28704  2620 ?        S    06:53   0:00 (sd-pam)
pi        7194  0.0  0.9  11508  4140 ?        S    06:53   0:00 sshd: pi@pts/0
pi        7197  3.1  0.8   5824  3792 pts/0    Ss+  06:53   0:00 -bash
root      7212  4.0  1.2  11508  5688 ?        Ss   06:53   0:00 sshd: pi [priv]
pi        7222  1.7  0.9  11508  4124 ?        S    06:53   0:00 sshd: pi@pts/1
pi        7225 14.7  0.8   5824  3792 pts/1    Ss   06:53   0:00 -bash
pi        7240  0.0  0.6   7728  2960 pts/1    R+   06:53   0:00 ps aux

CPU spikes are better and RAM usage has stopped growing, since I deleted all of the other PCA9685 pins

I suspect leaking Go routines here. Need to look at the code some.

NewbyREEF · Dec 25, 2018

Ranjib said:
The one in the above image is the very first version of the controller. Its using a wooden handmade housing (Im really bad at wood works), it powers one of my pico (fluval spec III). Here are some details:
- Main controller board: raspberry pi 2
- 8 channel sain smart relay, two of them are connected to two perstaltic pumps (mounted at right side of the housing), they are used of dosing/ATO
- There are 6 110V AC outlet mounted at the bottom. Return, powerhead (coralia pico evolution), stock LED, heater all are connected to the AC sockets.
- In the front, it has a 7" LCD screen (from Adafruit), can be switch on/off using the controller UI.

Below is the image of internals of the housing, Note: I have gutted a 6 port extension to repurpose its surge protection electronics. It also had two 5V 1 A USB outlets, which i use to power the raspberry Pi as well as the display. The ancillary breadboard on front panel hosts a MCP3008 and an L293D IC for sensor and high voltage PWM controls

do

Do you see any reason I can't just use my rpie2 and the 8 channel referenced to run my pumps, heater, and lighting?

NewbyREEF · Dec 25, 2018

NewbyREEF said:
Do you see any reason I can't just use my rpie2 and the 8 channel referenced to run my pumps, heater, and lighting?

And have 5 more relays for future use

Ranjib · Dec 26, 2018

Ryan115 said:

reef-pi has been bouncing up and down in CPU usage in top as well

Code:

pi@raspberrypi:~ $ ps aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  1.2  27040  5628 ?        Ss   Dec18   0:17 /sbin/init
root         2  0.0  0.0      0     0 ?        S    Dec18   0:00 [kthreadd]
root         4  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/0:0H]
root         6  0.0  0.0      0     0 ?        I<   Dec18   0:00 [mm_percpu_wq]
root         7  0.0  0.0      0     0 ?        S    Dec18   2:17 [ksoftirqd/0]
root         8  0.0  0.0      0     0 ?        S    Dec18   0:00 [kdevtmpfs]
root         9  0.0  0.0      0     0 ?        I<   Dec18   0:00 [netns]
root        11  0.0  0.0      0     0 ?        S    Dec18   0:00 [khungtaskd]
root        12  0.0  0.0      0     0 ?        S    Dec18   0:00 [oom_reaper]
root        13  0.0  0.0      0     0 ?        I<   Dec18   0:00 [writeback]
root        14  0.0  0.0      0     0 ?        S    Dec18   0:00 [kcompactd0]
root        15  0.0  0.0      0     0 ?        I<   Dec18   0:00 [crypto]
root        16  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kblockd]
root        17  0.0  0.0      0     0 ?        I<   Dec18   0:00 [watchdogd]
root        18  0.0  0.0      0     0 ?        I<   Dec18   0:00 [rpciod]
root        19  0.0  0.0      0     0 ?        I<   Dec18   0:00 [xprtiod]
root        22  0.0  0.0      0     0 ?        S    Dec18   0:00 [kswapd0]
root        23  0.0  0.0      0     0 ?        I<   Dec18   0:00 [nfsiod]
root        33  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kthrotld]
root        34  0.0  0.0      0     0 ?        I<   Dec18   0:00 [iscsi_eh]
root        35  0.0  0.0      0     0 ?        I<   Dec18   0:00 [dwc_otg]
root        36  0.0  0.0      0     0 ?        I<   Dec18   0:00 [DWC Notificatio]
root        37  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-slot/0]
root        38  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-recy/0]
root        39  0.0  0.0      0     0 ?        S<   Dec18   0:00 [vchiq-sync/0]
root        40  0.0  0.0      0     0 ?        S    Dec18   0:00 [vchiq-keep/0]
root        41  0.0  0.0      0     0 ?        S<   Dec18   0:00 [SMIO]
root        42  0.0  0.0      0     0 ?        S    Dec18   6:02 [irq/86-mmc1]
root        45  0.0  0.0      0     0 ?        S    Dec18   0:32 [mmcqd/0]
root        46  0.0  0.0      0     0 ?        S    Dec18   0:08 [jbd2/mmcblk0p2-]
root        47  0.0  0.0      0     0 ?        I<   Dec18   0:00 [ext4-rsv-conver]
root        48  0.0  0.0      0     0 ?        I<   Dec18   0:00 [ipv6_addrconf]
root        84  0.3  1.5  28776  6860 ?        Ss   Dec18  24:22 /lib/systemd/systemd-journald
root       101  0.0  0.5  14324  2564 ?        Ss   Dec18   0:02 /lib/systemd/systemd-udevd
root       128  0.3  0.0      0     0 ?        S    Dec18  24:36 [w1_bus_master1]
root       137  0.0  0.0      0     0 ?        S    Dec18   0:00 [spi0]
root       153  0.0  0.0      0     0 ?        I<   Dec18   0:00 [cfg80211]
root       160  0.0  0.0      0     0 ?        I<   Dec18   0:00 [brcmf_wq/mmc1:0]
root       161  0.0  0.0      0     0 ?        S    Dec18   1:32 [brcmf_wdog/mmc1]
systemd+   186  0.0  0.8  17260  3700 ?        Ssl  Dec18   0:02 /lib/systemd/systemd-timesyncd
root       209  0.0  0.5   5288  2280 ?        Ss   Dec18   0:02 /usr/sbin/cron -f
root       210  0.0  0.6  22848  2932 ?        Ssl  Dec18   4:42 /usr/sbin/rsyslogd -n
nobody     216  0.0  0.4   5284  2216 ?        Ss   Dec18   0:08 /usr/sbin/thd --triggers /etc/triggerhappy/triggers.d/ --socket /run/thd.socket
avahi      233  0.0  0.6   6500  3012 ?        Ss   Dec18   0:27 avahi-daemon: running [raspberrypi.local]
message+   235  0.0  0.7   6496  3160 ?        Ss   Dec18   0:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd
root       244  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/0:1H]
avahi      252  0.0  0.3   6384  1376 ?        S    Dec18   0:00 avahi-daemon: chroot helper
root       255  0.0  0.9   7400  4016 ?        Ss   Dec18   0:02 /lib/systemd/systemd-logind
root       387  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/u3:0]
root       388  0.0  0.1   2080   552 ?        S    Dec18   0:00 /usr/bin/hciattach /dev/serial1 bcm43xx 3000000 flow - b8:27:eb:77:da:a4
root       390  0.0  0.0      0     0 ?        I<   Dec18   0:00 [kworker/u3:2]
root       393  0.0  0.8   7064  3620 ?        Ss   Dec18   0:00 /usr/lib/bluetooth/bluetoothd
root       407  0.0  0.8  10124  3588 ?        Ss   Dec18   0:12 wpa_supplicant -B -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dnl80211,w
root       468  0.0  0.3   2868  1416 ?        Ss   Dec18   0:02 /sbin/dhcpcd -q -w
root       483  0.0  1.0  10188  4836 ?        Ss   Dec18   0:00 /usr/sbin/sshd -D
root       484  0.0  0.4   3956  1808 ttyS0    Ss+  Dec18   0:00 /sbin/agetty --keep-baud 115200,38400,9600 ttyS0 vt220
root       485  0.0  0.3   4180  1488 tty1     Ss+  Dec18   0:00 /sbin/agetty --noclear tty1 linux
root      2888  5.8 57.4 802356 254928 ?       Ssl  Dec20 298:16 /usr/bin/reef-pi daemon -config /etc/reef-pi/config.yml
root      6841  0.0  0.0      0     0 ?        I    02:46   0:02 [kworker/u2:1]
root      6876  0.0  0.0      0     0 ?        I    04:00   0:00 [kworker/0:0]
root      6943  0.0  0.0      0     0 ?        I    05:25   0:00 [kworker/u2:0]
root      7176  0.0  0.0      0     0 ?        I    06:43   0:00 [kworker/0:2]
root      7177  0.0  0.0      0     0 ?        I    06:50   0:00 [kworker/0:1]
root      7178  0.6  0.0      0     0 ?        I    06:51   0:00 [kworker/u2:2]
root      7179  1.8  1.2  11508  5656 ?        Ss   06:52   0:00 sshd: pi [priv]
pi        7184  1.1  1.3   9652  5796 ?        Ss   06:53   0:00 /lib/systemd/systemd --user
pi        7187  0.0  0.5  28704  2620 ?        S    06:53   0:00 (sd-pam)
pi        7194  0.0  0.9  11508  4140 ?        S    06:53   0:00 sshd: pi@pts/0
pi        7197  3.1  0.8   5824  3792 pts/0    Ss+  06:53   0:00 -bash
root      7212  4.0  1.2  11508  5688 ?        Ss   06:53   0:00 sshd: pi [priv]
pi        7222  1.7  0.9  11508  4124 ?        S    06:53   0:00 sshd: pi@pts/1
pi        7225 14.7  0.8   5824  3792 pts/1    Ss   06:53   0:00 -bash
pi        7240  0.0  0.6   7728  2960 pts/1    R+   06:53   0:00 ps aux

CPU spikes are better and RAM usage has stopped growing, since I deleted all of the other PCA9685 pins

This is with pi 3 or pi zero ? I am assuming you are running headless. I'll try to reproduce this, soon i get some time to work on the code side. It will be very helpful to know your reef-pi setup, if you have a build thread, i'll dig it up, else just share some summary information here. It looks like a memory leak , but I am not sure.

Ranjib · Dec 26, 2018

NewbyREEF said:
Do you see any reason I can't just use my rpie2 and the 8 channel referenced to run my pumps, heater, and lighting?

Yeah, this should be fine.
Welcome to reef2reef :-)

Ranjib · Dec 26, 2018

Rip Van Winkle said:
@Ranjib
Haven't been keeping up, so I haven't read all the pages for this thread. Not sure if you've seen this before or not but in case you haven't I posted here.

Peristaltic Pump DIY

Adding this in case you want to pursue:

Quad Doser With Improved Design
https://www.thingiverse.com/thing:1134817

He's dosing to his tank. Nice.

Thank you for sharing :-), I'll take a look

Ryan115 · Dec 26, 2018

Ranjib said:
This is with pi 3 or pi zero ? I am assuming you are running headless. I'll try to reproduce this, soon i get some time to work on the code side. It will be very helpful to know your reef-pi setup, if you have a build thread, i'll dig it up, else just share some summary information here. It looks like a memory leak , but I am not sure.

Pi zero running headless, using an Adafruit Motor Hat and running the custom version 2.0-2-gae06032 to allow addressable PCA9685.
I dont have a build thread, though I probably should have started one along the way.
Thanks for the help, let me know if you need any specs or any testing on my end.