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

[That Crusso Kid]

what I have is 3 touch screen case with raspberry pi 3 b in each I'm going to make a cable to go a build box with the proto board mounted.
I started to build on a breadboard for now have, temp-prob, 4 power on 8 relay, the green and red led lights are on gpio 18 & 19 just to the dimming waiting on the pca9685 boards to come. the yellow led to going to show the heater coming on&off by the temp-prob just need to pick a gpio pin for it.
I still need to find how many gpio pins I can use.
my main tank is a 300gal reef I have 5 Kessil a360, 6 mars black box led lights to add more blue, 2 T5s in front & 2 T5s in back. still need to put some night moon lights in.

@lotus02

Nice looking tank!

If you have not done so already, please start a reef pi build thread of your own and document your 3 builds so we can all follow along! There is always much to learn from each other.

 

[Ryan115]

I hate to say this ...but gremlins are a thing when it comes to software engineering :)..
Joking ... I am not going to drop the ball on this and follow up with data

No problem.
Have we been able to confirm whether 2.2 supports non-default PCA9685 i2c address?

 

[lotus02]

@lotus02

Nice looking tank!

If you have not done so already, please start a reef pi build thread of your own and document your 3 builds so we can all follow along! There is always much to learn from each other.

thanks just trying get it back moved here a couple years ago lost all my sps coral in the move going soft coral this time, here are some pics of old tank

 

[lotus02]

thanks just trying get it back moved here a couple years ago lost all my sps coral in the move going soft coral this time, here are some pics of old tank

I sold the clams before the move I did not want to try and move them. I ran with fish only for the most part until just a little while ago as i was a little upset over all the loss.

 

[bishoptf]

thanks just trying get it back moved here a couple years ago lost all my sps coral in the move going soft coral this time, here are some pics of old tank

That looks awesome, just beautiful.

 

[theatrus]

Spent some time poking at the PWM support, and can confirm the math... doesn't work at arbitrary frequencies (the frequency is written out as the period value multiplied out, and not the inverse as it should be). This also maps to the duty cycle being very wrong at frequencies not == 100.

 

[dmolavi]

I got my Drok sensors...with red, white and yellow wires. Is this correct:
Red - VCC
Yellow - data
White - ground

OR

Red - VCC
Yellow - ground
White - data

 

[b4tn]

Spent some time poking at the PWM support, and can confirm the math... doesn't work at arbitrary frequencies (the frequency is written out as the period value multiplied out, and not the inverse as it should be). This also maps to the duty cycle being very wrong at frequencies not == 100.

Is this for the PCA9685 support or RPI built in PWM?

 

[dmolavi]

Here is the sensor that I got. Kinda wondering if its waterproof...

 

[theatrus]

Is this for the PCA9685 support or RPI built in PWM?

Pi

 

[bishoptf]

I got my Drok sensors...with red, white and yellow wires. Is this correct:
Red - VCC
Yellow - data
White - ground

OR

Red - VCC
Yellow - ground
White - data

Not sure which ones you have but if they are the ones with the silicon jackets - https://www.amazon.com/T-PRO-DS18b2...id=1549419698&sr=8-1&keywords=DS18B20+silicon

According to the specs:
Product Parameter
- Power supply range: DC3.0V to 5.0
- Operating temperature range: -55°C to +125°C
- Accuracy: ±0.5°C (From -10°C to +85°C )
- Lead max to +85°C
- Data transmission mode: 9 - 12 adjustable resolution
- Output leads: Red (VDD+), Yellow(DATA) , White(GND)
- Stainless steel pipe: Diamter 6mm,Length 50mm
- Cable Material: silica gel
- Single Length of Cable : 1M/3.3 Ft

Although I have not used them I think @DirtDiggler2823 has used them, maybe he can chime in...

 

[bishoptf]

Here is the sensor that I got. Kinda wondering if its waterproof...

From what other users have stated the double crimp is supposed to keep them waterproof...

 

[dmolavi]

Not sure which ones you have but if they are the ones with the silicon jackets - https://www.amazon.com/T-PRO-DS18b2...id=1549419698&sr=8-1&keywords=DS18B20+silicon

According to the specs:
Product Parameter
- Power supply range: DC3.0V to 5.0
- Operating temperature range: -55°C to +125°C
- Accuracy: ±0.5°C (From -10°C to +85°C )
- Lead max to +85°C
- Data transmission mode: 9 - 12 adjustable resolution
- Output leads: Red (VDD+), Yellow(DATA) , White(GND)
- Stainless steel pipe: Diamter 6mm,Length 50mm
- Cable Material: silica gel
- Single Length of Cable : 1M/3.3 Ft

Although I have not used them I think @DirtDiggler2823 has used them, maybe he can chime in...

Mine looks exactly like the one there....

 

[bishoptf]

Pi

I think @Bigtrout was having issues with the pca9685 not being able to use anything less than 1500 frequency.

 

[theatrus]

I think @Bigtrout was having issues with the pca9685 not being able to use anything less than 1500 frequency.

Both are likely broken in different ways. There is a larger change coming to the PCA9685 driver which may fix the other half of the issues.

 

[bishoptf]

Both are likely broken in different ways. There is a larger change coming to the PCA9685 driver which may fix the other half of the issues.

Ahh, makes sense, if there is anyway that I can help out, just let me know :)

 

[daveCB]

Here is the sensor that I got. Kinda wondering if its waterproof...

its waterproof

 

[Bigtrout]

I got my Drok sensors...with red, white and yellow wires. Is this correct:
Red - VCC
Yellow - data
White - ground

OR

Red - VCC
Yellow - ground
White - data

Red=VCC
White=GND
Yellow=data
Do u like the quality? Compared to some others they are alot better IMHO.

 

[Bigtrout]

I think @Bigtrout was having issues with the pca9685 not being able to use anything less than 1500 frequency.

Correct, no matter the setting, I read 1500hz as the frequency output.

 

[Bigtrout]

Here is the sensor that I got. Kinda wondering if its waterproof...

See the double rolled crimp...with that crimp on that heavy silicone insulation...its waterproof...my first 2 have been submerged for a month now with no hiccups...