Aaron Parecki

#barbot

• 

  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.

  

  Portland, Oregon

  Sat, Jan 28, 2017 4:57pm -08:00 #barbot
• device · olikraus/u8glib Wiki (github.com)

  SSD1306 128x32

  

  Sat, Jan 28, 2017 3:40pm -08:00 #arduino #barbot
• Amazon.com: Waveshare 7 inch 1024*600 Capacitive Touch Screen LCD Display HDMI Interface Custom Raspbian Angstrom Supports Various Systems for All Ver. Raspberry pi Beaglebone Black Banana Pi/Pro Video Photo Kit: Electronics (www.amazon.com)

  "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."

  

  Sat, Jan 28, 2017 12:54pm -08:00 #barbot #raspberrypi
• 12V Peristaltic Pump Dosing Water Pump (www.aliexpress.com)

  Sun, Mar 6, 2016 4:08pm -08:00 #barbot
• 

  Successful mod of the $7 kitchen scale to turn it into a plain load cell that can be wired up to the rest of #barbot

  

  Portland, Oregon

  8 likes

  Fri, Feb 12, 2016 5:23pm -08:00 #barbot
• 

  The current state of #barbot. Currently struggling with having the pumps all run for a few seconds when it turns on, which is less than ideal. I may need advice from someone who knows more about electronics than me.

  

  5 likes 4 replies 3 mentions

  Wed, Dec 30, 2015 10:04pm -08:00 #barbot
• 

  Pumps are mounted and wires are laid out ready to solder in place! #barbot

  

  11 likes

  Tue, Dec 29, 2015 5:20pm -08:00 #barbot
• 

  Not the cleanest holes I've ever drilled, but I now have all the holes ready to mount the 16 pumps into. #barbot

  

  2 likes 1 mention

  Tue, Dec 29, 2015 4:10pm -08:00 #barbot
• Eleduino Raspberry Pi 2 Model B 7 Inch 1024x600 Pixel Hdmi Input Capacitive Touch Screen (www.amazon.com)

  Tue, Nov 24, 2015 9:08am -08:00 #raspberrypi #electronics #barbot
• Uniker Raspberry Pi 2 Model B Quad Core for Raspberry Pi Model (B+) 5- Inch 800x480 Pixel Hdmi input Touch Screen & Stand Case (www.amazon.com)

  Tue, Nov 24, 2015 9:03am -08:00 #rasperrypi #barbot #electronics
• https://twitter.com/wctek/status/659814532290777088
  

  @wctek Awesome, thanks! This is working out great so far! https://instagram.com/p/9cokcWjcnM/

  Portland, Oregon, USA

  1 reply

  Thu, Oct 29, 2015 10:34pm -07:00 #barbot
• 

  #barbot in action pumping actual whiskey! 😀🍸🎉

  

  8 likes 1 reply

  Thu, Oct 29, 2015 8:55pm -07:00 #barbot
• 

  First successful test of #barbot! Dispensing a precise 0.1 grams of water. It can actually do 0.01 reliably which is about 8 drops.

  

  7 likes 1 reply

  Thu, Oct 29, 2015 1:08pm -07:00 #barbot
• 

  Decided to try using the #piccolino with a built in OLED display, so now BarBot shows the progress of pouring the shot as well as what's in it! #barbot

  

  4 likes

  Sun, Sep 27, 2015 9:26am -07:00 #piccolino #barbot
• 

  Even more progress than I expected today! Now the Arduino is controlling a Darlington array (with LED to simulate a pump.) The 7-segment LED display indicates the progress of the dispensing, showing 0-100 and then

  

  4 likes

  Sat, Sep 26, 2015 1:20pm -07:00 #barbot
• Connecting ULN2803 Line Driver to Arduino (ediy.com.my)

  Sat, Sep 26, 2015 9:07am -07:00 #barbot #arduino
• 

  #barbot progress! I now have a scale hooked up to an Arduino taking readings every 100ms, as well as an I2C expander so that I will eventually be able to control 16 pumps

  

  6 likes

  Sat, Sep 26, 2015 9:06am -07:00 #barbot
• pcf8574_arduino_library/PCF8575 at master · skywodd/pcf8574_arduino_library (github.com)

  Sat, Sep 26, 2015 9:03am -07:00 #barbot #arduino
• 

  Made an attempt at Secret Aardvark sauce in the crock pot tonight. While it was cooking, did a little soldering to connect header pins to some boards I will be using for #barbot.

  

  4 likes 2 replies

  Wed, Sep 16, 2015 11:57pm -07:00 #barbot
• 

  Building #barbot... Took apart a cheap kitchen scale for the load sensor. A small ADC to turn that in to useful data. Designs in progress for the top piece. #cocktail #robot #latergram

  

  6 likes 1 reply

  Wed, Jun 10, 2015 3:19pm -07:00 #latergram #barbot #robot #cocktail