#BarBot
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Had to do some surgery on #BarBot today since the SD card in the raspberry pi finally failed. Two years isn't a bad run for a card tho!
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I forgot that I had run out of Campari but my cocktail robot was already pouring a Boulevardier so I swapped the Campari tube for Zwack and now I have a cocktail that is not what I was looking forward to but is okay #whiningontheyacht
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My robot cocktail maker now posts the drink it just made to my website, as well as records it in #ynab thanks to their new API! #barbot #quantifiedself #automation #manualtilithurts #ithurtssogood @youneedabudget
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This is fantastic! Looking forward to importing some of these into BarBot! https://aaronparecki.com/2017/02/26/18/day-68-barbot-recipes
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It has been brought to my attention that I need to add support for the Payment Request API to my BarBot. #indiewebcamp
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This cocktail-making robot blows my #BarBot out of the water, but hey, my BarBot lives in my apartment and was also much cheaper! #vegas #tipsyrobot #robotbartender
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Day 68: h-recipe Import for BarBot #100DaysOfIndieWeb
I've been putting the finishing touches on my robot that can mix cocktails over the last few weeks.
One of the last steps was to build up the recipe database for it. I knew I wanted to have some sort of Microformats h-recipe integration, but this ended up working out better than I had hoped.
In the "Perfect Drink" iOS app, you can input the list of liquors in your cabinet, and it will show you the recipes you can make with those ingredients. I clicked the "share" button on one of the recipes, and it shared a link to a web page with the recipe.
https://makeitperfectly.com/drink/recipes/1a1913f6-6ba2-11e5-a3ed-f372faffcfa4
I noticed that this web page happens to have Microformats 2 h-recipe markup in it! This meant I had a very quick way of getting these recipes into BarBot's recipe database, by parsing the Microformats!
I created an interface for parsing the recipe from a URL that has h-recipe markup and mapping it to a BarBot recipe. The interface is ugly, but it works!
When I want to add a recipe, the code parses the h-recipe, finds the name, photo and list of ingredients. It then presents me with an interface to map the list of ingredients in the recipe to the ingredients I have in my liquor cabinet. In this example, you can see I'm substituting Triple Sec for Cointreau.
This ends up being the quickest way to add recipes to BarBot's database!
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Some pictures of my progress on BarBot today! 🍸🤖
I ran the tubes through the pumps, and up the top to form a faucet. I tested them all with water. The nice part of this design is all of the electronics are suspended above the liquor bottles, so I don't have to worry about any drops falling onto the circuits.
I formed the faucet shape by bending a wire to the shape I wanted, and clamping it to the cabinet with a wide washer. I ran the tubes along the wire and ziptied them.
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Look at that! First pump installed and successfully pumped exactly half an ounce! #barbot
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After a few setbacks and trying out various combinations of components, I finally have all 16 pumps being controlled from this Arduino! I ended up getting a new Arduino that has enough pins to drive the relays directly instead of going through a serial expander board which was causing me problems. I also abandoned the Darlington arrays in favor of these relay boards that have all the relay isolation stuff done for me. This also keeps the 5v Arduino and 12v pump power supplies completely separate, which I feel much more comfortable about. Next step is to mount this into my cabinet and hook up the tubing! Then time to get to work on the recipe database! #barbot
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Well I clearly know a lot less about circuit design than I thought. There's something wrong with this circuit, and I can't figure it out. Something about the power distribution causes the Arduino to freak out when the 12v supply is powered on and delivering power through the voltage regulator.
I've decided to cut my losses and replace the motor control portion of this with a prebuilt relay board so that someone else has figured out all that part for me. I just bought two of these boards which can be powered from the 5v off the Arduino, and controls 8 relays. https://amazon.com/dp/B00KTELP3I/?tag=apkdotcom-20
This will let me completely separate the power supply of the 12v motors from the power supply of the Arduino.
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"With all these negative reviews, I thought it would be hard to get going, but I'm no slouch when it comes to technical stuff so I gave it a try. It was really pretty easy. I got it to work with two different raspian images (hypriot and the standard Jessie) by just adding a few lines to the config.txt:
max_usb_current=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt=1024 600 60 6 0 0 0
The first line let's the pi send it more current over the USB ports, the other three set a manual resolution for the HDMI. These are standard pi configuration variables, and needed for most bare monitors."
