[Initial Release] RaspberryPints - Digital Taplist Solution

[wbarber69]

If there was a writeup I'm sure interest would skyrocket

 

[day_trippr]

Any way to support flow meters with an Android tablet?

Cheers!

 

[wbarber69]

Use an arduino

 

[wbarber69]

I was wondering if there were ever any strides made to support other, cheaper flow meters. Like the simple Hall effect types?

 

[lumpy5oh]

I'd love to see a write up on using the tablet and an arduino running flow meters if it's been done.

 

[day_trippr]

I was wondering if there were ever any strides made to support other, cheaper flow meters. Like the simple Hall effect types?

Afaik nobody has tried to use the relatively cheap Adafruit meters yet, but it should be easy enough to try. The tick count per ounce would have to be modified but that should be the only change needed...

Cheers!

 

[wbarber69]

I'll have to order some and see. I was wondering because there are some cheap meter sets out there that come with the flow meter and an lcd readout. I was gonna get one to log the starting volumes of my kegs when I do the initial transfer. I know they aren't reliable, but we're talking about a novelty feature here and accuracy isn't necessarily that important to me.

 

[froot]

If you blue toothed the arduino you'd have a fully wireless setup. Though the tablet would need to remain charged anytime the taps were in use.

 

[wbarber69]

I guess. I've had mixed results with BT and android. It should work. I just haven't put enough time into the android side of things.

 

[mcangeli]

I'm going to go out on a limb and say, no. The flowmeters will not currently work with this setup on a tablet (unless the tablet is connected to an arduino via USB connection.

The issue comes in that the code is running on the rPi to constantly watch for input on the serial connection from the alamode and flowmeters. That connection wouldn't be there with the tablet.

 

[Snicklefritz]

I would tend to agree that getting flow meters working on the tablet would be tough. Theoretically you could connect to the RPI from the android tablet via Bluetooth like here http://blog.davidvassallo.me/2014/05/11/android-linux-raspberry-pi-bluetooth-communication/. This isn't something that I will be looking into though as the expense of the flow meters just isn't worth it for me. I am going to create an interface on the tablet so you could manually select the amount poured and keep track that way. It wont be perfect but from what I've gathered, neither are the flow meters. I'm thinking something like you tap on the keg column and get a popup box showing different size glasses that you could click on to add to the pours table.

 

[wbarber69]

The alamode is just an arduino built to fit right on top of the pi. Using an arduino over usb would be fine. But you'll need a powered hub on the end of your otg cable. The trick is figuring out the device names and getting all the config files setup right. But if venture to say that after about a week or so of logging you may start to see memory errors.

 

[day_trippr]

[...]It wont be perfect but from what I've gathered, neither are the flow meters. [...]

The SF800 meters on a well tuned setup are amazingly accurate. Keg kicks are consistently within the margin of initial fill error (sometimes I fill a couple of pints more than other times).

The specs on the Adafruit meters are way sloppier, so I wouldn't expect them to track anywhere near as tightly, but perhaps close enough...

Cheers!

 

[day_trippr]

But if venture to say that after about a week or so of logging you may start to see memory errors.

What's that all about?

Cheers!

 

[wbarber69]

I've had issues keeping my android running a web server reliably. But then again my tablet was .99¢

 

[froot]

I'm going to go out on a limb and say, no. The flowmeters will not currently work with this setup on a tablet (unless the tablet is connected to an arduino via USB connection.

The issue comes in that the code is running on the rPi to constantly watch for input on the serial connection from the alamode and flowmeters. That connection wouldn't be there with the tablet.

One of the users in the V2 thread had pints with meters working with an arduino over a serial rf connection 2401 or some such.

Brew Pi is being used over bluetooth serial, it should be just a matter of editing the serial connection parameters in Rpints on the tablet.

Edit: complete confusability

 

[Ricand]

The SF800 meters on a well tuned setup are amazingly accurate. Keg kicks are consistently within the margin of initial fill error (sometimes I fill a couple of pints more than other times).

The specs on the Adafruit meters are way sloppier, so I wouldn't expect them to track anywhere near as tightly, but perhaps close enough...

Cheers!

I bought these flow meters at $9.50 each. Supposed to be 3% accurate. I've got them hooked up and sensing fine. Does anyone remember where to adjust pulse/ounce setting in the software? I remember seeing it, but darn I can't find it again. I'm going to set up a test and see how they do. I also bought a couple Swissflo meters to test them against, however the haven't come in yet. I ordered the G1/4 meters at the same time and they have been in a week. REALLY, give me +- a pint on kicking a keg and I'm a happy camper. I'll have that much error with uber sensitive meters since I'm just guessing the starting quantities in my cornies anyway. What would I do differently if OH NO I only have 18 ounces left vs 2 oz left? I just want to know what to brew next and I just guess with my 8 taps now.

Edit: got the pulse/gallon settings. You would have to go into /var/www/includes/pours.php and modify line 41: $amount = $PULSE_COUNT / 21120;

 

[fusa]

The link for the motion dectector on the User Add-ons page of the RaspberryPints website no longer points to the correct address. You are now sent to the beginning of this thread. The correct link is https://www.homebrewtalk.com/showpost.php?p=6029665

 

[wbarber69]

Not sure if anyone else has done this and I'm not going to read through 159 pages to find out. I did some initial research about running Raspberry Pints on my android tablet which lead me to the tutorial on the pints website explaining how to setup a web server on a local PC and then have the tablet connect to that server to access Raspberry Pints. That's a perfectly acceptable method but I wanted to take it one step further. I installed a free app from the Play store (Palapa Web Server) that actually installs a web server+php+mysql on the android device directly. From there I installed Raspberry Pints directly on the tablet and voila! Raspberry Pints on my 7" $100 Galaxy Tab 2. Here are a couple of pics showing it running. If there is some interest I could do a howto/writeup.

Next up I plan to add some simple touch controls so that you could tap on a beer and then select a pour amount (preset for 5oz, 12oz, 16oz, 20oz, 64oz) as an alternative to flow meters for tracking..

Any more info on this. Id like to give thus a try but palapa isn't very user friendly and I can't figure out how to change passwords or really any usable settings and the phpadmin it comes with doesn't even work.

 

[buercky]

Im not sure if anybody could help me but for some reason the color on the glasses under "gravity" goes outside the line of the glass and I would like to get it fixed.

Thanks in advance for your help

 

[day_trippr]

Screen shot?

 

[buercky]

just added it

 

[Ricand]

just added it

There's not much support on this thread anymore. I've been going nuts messing with the two column HTML for horizontal viewing. I finally figured it out, but having never messed with HTML before it seems user hostile.

I know where in the index file this occurs, did you muck around with the index file much? You could just copy and paste the section back in from a 'clean' version if so.

Edit: I was looking at that section since it's in my plans to modify it. I'm not a fan of the SRM color that is used. I plan to replace the SRM color glass with an actual png image of my beer taken with my cell camera.

BTW, those inexpensive flow meters are working great for me. I have 3 of the high dollar SwissFlo meters new in packaging with the barbs, if anyone want's a decent deal on them PM me.

 

[DrunkleJon]

Well it appears I broke my pi. I can get the power light lit on it but nothing out to the display. And all I did was leave it unplugged for about 5 months. Going to tinker with it this week and see if I can resurrect it. And to think I had it working great too.

 

[Ricand]

Well it appears I broke my pi. I can get the power light lit on it but nothing out to the display. And all I did was leave it unplugged for about 5 months. Going to tinker with it this week and see if I can resurrect it. And to think I had it working great too.

If it's dead I have an extra B model I'd be happy to send to you. Funny story, I thought I ordered the Pi 2, but ended up with 2 Pi due to some shady wording on the advertisement. Still seems to be working great for me.

 

[DrunkleJon]

If it's dead I have an extra B model I'd be happy to send to you. Funny story, I thought I ordered the Pi 2, but ended up with 2 Pi due to some shady wording on the advertisement. Still seems to be working great for me.

Cool, will let you know. I hate shady advertisements. And thanks!

 

[day_trippr]

There's not much support on this thread anymore.

Because we all moved on to the other, newer thread.

PKU...

Cheers!

 

[billybryson54]

Well it appears I broke my pi. I can get the power light lit on it but nothing out to the display. And all I did was leave it unplugged for about 5 months. Going to tinker with it this week and see if I can resurrect it. And to think I had it working great too.

I had a dead pi a few months ago that I was able to resurrect. Power light would come on but the activity light never once even attempted to light up. After switching out the power supply and the rgb2 regulator, it was back up and running. The regulator cost me 3 or 4 bucks from eBay and took about 15 minutes to do. All it involves is removing the old one and soldering three female DuPont jumpers to the pi in the stock regulator's location, then plugging in the new regulator to the jumpers. If you're interested I'll send you a link

 

[Ricand]

Because we all moved on to the other, newer thread.

PKU...

Cheers!

Thank you for your work on the temperature monitoring. I'm adding it to my RPints as well. I've seen your comments on pins, hopefully 13 will work since I'm not using it as a flow monitor indicator and I need 8 for the taps. If I can did one more up, the motion sensor will go on as well.

Cheers!

 

[day_trippr]

Im not sure if anybody could help me but for some reason the color on the glasses under "gravity" goes outside the line of the glass and I would like to get it fixed.

Thanks in advance for your help

Couldn't see the pic in the Android app.

Anyway, never seen that before. There's a mask file (\var\www\img\srm) that fits the pint outline file (in the same folder); the pint color is set from indexing into the Beers table in the database to grab the SRM value, and presumably the mask keeps that pint color from bleeding around the outline (leaving the background).

Perhaps the mask file is missing? Here's what in that folder:

pint-mask.png
pint-mask-4k.png
pint-stroke.png
pint-stroke-4k.png

Cheers!