BrewPi Remix – What’s Old is New Again

[LBussy]

Does anyone have any idea why I never get any iSpindel SG numbers in the table on the right side?

I'm guessing that slacker that tries to maintain this screwed something up.

I'll put this on the list: #73 in BrewPi Remix Web.

 

[larsh]

I'm guessing that slacker that tries to maintain this screwed something up.

I'll put this on the list: #73 in BrewPi Remix Web.

 

[jasonv]

Disregard this I had it wired wrong.

 

[jasonv]

Disregard this I had it wired wrong.

I do have a question now. Can I output a positive trigger to a relay?

 

[LBussy]

I do have a question now. Can I output a positive trigger to a relay?

I assume you mean to trigger the relay on high? Yes, set the pin to not inverted.

 

[jasonv]

I assume you mean to trigger the relay on high? Yes, set the pin to not inverted.

That worked Thanks !

 

[balrog]

@LBussy , can you use the ZERO 2 WH, or PICO W, with BrewPiRemix® ?

 

[LBussy]

I have used the Zero, but performance suffers - especially with very large logs.

The Pico is not a computer, it s a controller. While it can run MicroPython, it's not a full OS capable of serving as a BrewPi Server.

 

[ShaneB]

If you live near a Microcenter store they get raspi shipments every week. I checked the website a few days in a row during the week and saw they got a shipment of about 50 raspi 4b 4gb at my local microcenter, limit one per person. When I got to the store there was still a ton left, I checked later in the day and they were almost out.

 

[LBussy]

There are certainly some places trying to take advantage of a shortage, but you are right. If you want one you can find one; if you need one you’re going to feel the pain.

 

[day_trippr]

Coincidently I'm going to hit Micro Center Cambridge this afternoon on an unrelated mission. I'll see what they have in stock for RPi's...

Cheers!

 

[DuncB]

Have checked out the micro centre, 8Gb Pi less than half the price of a second hand rasp pi 4Gb down here in NZ.

Need to find someone going to the usa and get one ordered and into their suitcase.

Crazy difference.

 

[day_trippr]

My visit to Micro Center Cambridge revealed a grand total of ZERO Raspberry Pi's, but did see an imperial crapton of PLA spools and a dozen 3D printers where they used to put the RPi's and Arduinos and all of the accessory stuff for them. Asked one of the department heads what was up and he said whatever they get in for Raspberry Pi's gets sold out in hours and they just cannot keep any of the boards in stock.

No bueno. With 14 Pi's in service I'm super happy I have a Zero-W, a couple of 2Bs, and a 3B+ for spares...

Cheers!

 

[pbezza]

Have checked out the micro centre, 8Gb Pi less than half the price of a second hand rasp pi 4Gb down here in NZ.

Need to find someone going to the usa and get one ordered and into their suitcase.

Crazy difference.

Check out Core Electronics Aus. Their prices might suit you? Not sure about shipping prices. Currently have 4gb and 8gb models in stock. Raspberry Pi Australia - Express Delivery

 

[Thorrak]

My visit to Micro Center Cambridge revealed a grand total of ZERO Raspberry Pi's, but did see an imperial crapton of PLA spools and a dozen 3D printers where they used to put the RPi's and Arduinos and all of the accessory stuff for them. Asked one of the department heads what was up and he said whatever they get in for Raspberry Pi's gets sold out in hours and they just cannot keep any of the boards in stock.

No bueno. With 14 Pi's in service I'm super happy I have a Zero-W, a couple of 2Bs, and a 3B+ for spares...

Cheers!

Jesus, and I thought I had a problem. To be fair though I've been actively retiring Pis as of late in favor of VMs on a dirt cheap, used SFF PC. $60, plus, I can tell myself that I'm helping combat e-waste (or something)!

Seriously though, for anyone interested, @LBussy should be able to confirm but I'm pretty sure BPR works wonderfully on Intel hardware, and it's only just barely harder to set up than a RPi.

 

[DuncB]

Jesus, and I thought I had a problem. To be fair though I've been actively retiring Pis as of late in favor of VMs on a dirt cheap, used SFF PC. $60, plus, I can tell myself that I'm helping combat e-waste (or something)!

Seriously though, for anyone interested, @LBussy should be able to confirm but I'm pretty sure BPR works wonderfully on Intel hardware, and it's only just barely harder to set up than a RPi.

I'm hoping to set up a Pi 4 using 2 screens in the bar area for Raspberry pints, so think it raspberry pi only for that. Although I'm not sure how these other raspberry pi type clones would work, any ideas?

 

[balrog]

Jesus, and I thought I had a problem. To be fair though I've been actively retiring Pis as of late in favor of VMs on a dirt cheap, used SFF PC. $60, plus, I can tell myself that I'm helping combat e-waste (or something)!

Seriously though, for anyone interested, @LBussy should be able to confirm but I'm pretty sure BPR works wonderfully on Intel hardware, and it's only just barely harder to set up than a RPi.

I’ve run BPRemix on old Dell laptops since forever.

 

[DuncB]

Check out Core Electronics Aus. Their prices might suit you? Not sure about shipping prices. Currently have 4gb and 8gb models in stock. Raspberry Pi Australia - Express Delivery

Thank you for this, i've ordered a Pi 8Gb and also psu, case and a V2 Base shield which I think attaches to the arduino uno rev3 and could make the project a bit easier.
All of the above delivered still cheaper than a second hand Pi 4 4Gb.

 

[LBussy]

@LBussy should be able to confirm but I'm pretty sure BPR works wonderfully on Intel hardware, and it's only just barely harder to set up than a RPi.

It should - the last time I tried, I ran it on Raspberry Pi Desktop (which is just Debian that looks like it's a Pi.) I've run it in a VM as well.

 

[day_trippr]

Along with brewery functions my RPi's are managing stuff like cameras and proximity and environmental sensors, many of them wirelessly. Running VMs on a central anything isn't a fit for my usage models due to the sensor connectivity limits (you can only string a sensor so far).

Also...my fleet was bought when RPi's were virtually comestibles The 2s and 3s were like $30-35 each and the Zeros were $10-15. The only one I paid a premium for was an 8GB model 4B that I've been playing with for facial recognition stuff. So they're cheap, connectable, and largely interchangeable. As I mentioned earlier the fleet is based on a common SD card image with features enabled on a per-system basis...

Cheers!

 

[ShaneB]

Along with brewery functions my RPi's are managing stuff like cameras and proximity and environmental sensors, many of them wirelessly. Running VMs on a central anything isn't a fit for my usage models due to the sensor connectivity limits (you can only string a sensor so far).

Also...my fleet was bought when RPi's were virtually comestibles The 2s and 3s were like $30-35 each and the Zeros were $10-15. The only one I paid a premium for was an 8GB model 4B that I've been playing with for facial recognition stuff. So they're cheap, connectable, and largely interchangeable. As I mentioned earlier the fleet is based on a common SD card image with features enabled on a per-system basis...

Cheers!

NVIDIA Jetson Nano is pretty cool for machine vision and facial recognition stuff

 

[day_trippr]

No doubt. It's also 3X what I paid for my 8GB 4
My intended applications aren't that important.
Besides there's comfort in sharing operating systems and a lot of applications with the fleet...

Cheers!

 

[Thorrak]

I can confirm facial recognition works on a 3B, but oh god is it slow. Not good at recognizing faces and pours simultaneously, unfortunately.

 

[DuncB]

I can confirm facial recognition works on a 3B, but oh god is it slow. Not good at recognizing faces and pours simultaneously, unfortunately.

You need a nice simple mark on your face like a big red triangle on your forehead will speed up the recognition no end!

 

[day_trippr]

I had it working on a 2B years ago, but it was indeed slow and not necessarily reliable.
You should try it on a 4B though with decent cooling so it's not throttling...

Cheers!

 

[ShaneB]

Any tips on how to get better temperature control? Right now I'm just running a empty chest freezer for testing set to 68*f. Is the pid control optimized for the thermal mass of liquid (how many gallons)? When the 5cu ft freezer runs it brings the temp down to about 60*f then takes 3+ hr to get back up to 68*f then goes up to about 70 before the freezer turns on again. Is there anyway to auto tune the PID constants?

I'm running brewpi-esp + fermentrack for monitoring

 

[LBussy]

Any tips on how to get better temperature control? Right now I'm just running a empty chest freezer for testing set to 68*f. Is the pid control optimized for the thermal mass of liquid (how many gallons)? When the 5cu ft freezer runs it brings the temp down to about 60*f then takes 3+ hr to get back up to 68*f then goes up to about 70 before the freezer turns on again. Is there anyway to auto tune the PID constants?

I'm running brewpi-esp + fermentrack for monitoring

There are ways, but why would you want to tune for something you will not benefit from? Yes, you need some thermal mass in there because, without it, you are probably fighting min on/off times.

Put in a mass equal to whatever you plan to ferment, and test and tune that.

 

[jasonv]

Hi all,

Having and issue with the cold or heat short cycling on only for few seconds when the beer temp has been set. When I set the fridge temp they stay running for a much longer time.

Thanks

 

[LBussy]

Having and issue with the cold or heat short cycling on only for few seconds when the beer temp has been set. When I set the fridge temp they stay running for a much longer time.

Did you grab the glycol firmware by chance?

 

[jasonv]

That's possible. How can I tell?