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In my last post, I chose some hardware that acquires and measures temperatures. Now that I have a thermistor probe and an ADC, how should I hook them together and interpret the ADC output to get a temperature value? This post explains some theory and my thought process, in three parts.   Part 1: Theory   Voltage Divider A thermistor is a kind of variable resistor. As the temperature changes, its resistance changes. This resistance is what I have to measure using the Analog-to-Digital C ...
Time is marching along and it's time for an update!   My first post was a general overview of my project: Automatic Dough Shaper - Blog #1 The idea is essentially this: dough goes in, gets flattened, shaped, baked, and comes out.   Project Timeline: Week 1: Order parts Weeks 2-3: Set up Raspberry Pi and toaster oven control Weeks 4: Roller control Week 5-6: XY control Weeks 7-9: Fine tune functionality and user interaction Weeks 10-11: Troubleshooting and last minute fixes &# ...
Have you ever thought to yourself, “What a brilliant idea! I bet no one has ever thought of this before!”? That thought very rarely turns out to be true, and it just happened to me again. Oops.   Since writing my last post, I discovered that the company that makes my temperature probes released a new product that is basically a clone of what I'm building: https://www.thermoworks.com/Smoke-Gateway. I was shocked that I didn't find it when I was doing research before the contest, ...
Hello everyone and welcome to Blog number 2 for the Spice of Pi.   This entry is going to lay the ground work for the software part of the Spice of Pi.  The development is going to be done in Python.  It has been a few years since I have actually used Python so this will be a great exercise to get the rust of those skills again.   Here is a rough mock up of the screen that I will start out with.  I probably won't have 16 buttons in the final display because that would o ...
The cooling unit In this article I am going to speak to you about the part hardware of the cooling system. To have a good yield on cooling it is essential to have good component otherwise this one can fall …   1. General operation The goal is to have a simple system to operate on a daily basis and to maintain. For this I use a tray in which there is a liquid cooled with Peltier modules through a waterblock. In this liquid, dip copper coils in which the various drinks will circulate, ...
The outside world...   This week i started playing with GPIO in preparation for connecting a grinder to the current voice software I'm running. So i started off with playing with the gpio, i just ran a simple script to switch an led on and off using pin 17 (apologies for the horrible bread board layout).   I then disassembled the pepper grinder i bought.   This actually ended up being harder than i expected as the cover over the buttons didn't want to come off. Both screws t ...
This our the first blog in the Pi Chef Design Challenge. The “our” is because glennvanderveer and I will be collaborating on this project. This year I want to try using collaboration as a way to get new members more involved in participating. We don't know how this will play out, but right now Glenn is keen and I am keen to see if we can make it work. Glenn is a new member, but has lots of technical experience especially in software, so technically it should be a good fit. I think fo ...
Spice of Pi Hardware Block Diagram Preliminary BoM Part Number Description image Raspberry Pi 3 SoC: Broadcom BCM2837 CPU: 1.2 GHZ quad-core ARM Cortex A53 GPU: Broadcom VideoCore IV @ 400 MHz. Memory: 1 GB LPDDR2-900 SDRAM. USB ports: 4. Network: 10/100 MBPS Ethernet, 802.11n Wireless LAN, Bluetooth 4.0 Raspberry Pi 7" Touchscreen 7” Touchscreen Colour Display Screen Dimensions: 194mm x 110mm x 20mm (including standoffs) Viewable screen size: 155mm x 86mm Screen Resolution 80 ...
This week the Spice of Pi has been all about designing hardware and ordering enough components to get it working. I had ordered a Google AIY Voice Hat to implement Google Assistant and voice recognition. It has arrived, but it uses a cardboard box for packaging, so I want to design packaging that is a little more appropriate for use in a kitchen. The Pi 3 and touch screen are going in a bamboo chassis - I thought it was appropriate for a kitchen: Next up is the speaker - I spent some time d ...
Intro Blog Unboxing   <<<--- Setup Gourmet Install Load up some Recipes! Enclosure Planning. 7inch Touchscreen Time AIY Build / Google Voice AIY API & Certs Succes with Google AIY!   Welcome to my second blog where I get to share with you, all of the goodies that UPS finally delivered to my door!     At long last the kit parts have arrived!  Due to Holiday craziness the one item that was expected to be late actually came earlier then the re ...
First of all i would like to thank all of the people who commented on my first blog, I got a lot of great feedback which i will for sure be using in my project! I had the last finals, and now I'm completely free to dig into the project. By reading the comments i saw a lot of concern on how I'll be able to determine the mass of the ingredients themselves in the containers, and also the accuracy of the sensors themselves. So in the end I've decided to do the combination of all, which I think will ...
fixstuff

Kitchen Brainiac: Intro

Posted by fixstuff Jan 26, 2018
Hi folks!  I'm not going to go into unboxing the contest items - that has already been done pretty well by the other folks, so I'll defer to them.   I'm going to jump right into this project, which I'm calling the Kitchen Brainiac.  This entails a centralized controller, turning on, and off remote controls located on various devices, such as crock pots, coffee makers, bread machines, beer distilling rigs, sous vide cooker, meat thermometers, etc.  Each "device" will house ei ...
With another year behind us, we are once again at the beginning of a new design challenge season here at Element14. Before we get started with week one, I want to take a moment and fill you in on the details of our first design challenge of 2018. Called the Pi Chef Design Challenge, this challenge is centered around the Raspberry Pi SBC, and task its challengers to use the Raspberry Pi as the main ingredient to improve and expand their creativity in the kitchen. We had an amazing set of design c ...
Pi Chef Design Challenge: Bake Mate #2 - Unboxing and a closer look at the ingredients parts  Status Update: I've almost finalized the JSON format that will be used to store the recipes. I've almost finished writing a Python module that contains functions that convert units. ninjatrent's post saved me a few searches. Successfully tested the method that will parse the JSON file Working on a rough layout of the program & program flow: the different screens and what they'll contain. ...
Pi Chef Design Challengers, Cooks and Hungry Nerds! Lend me your tastebuds... and eyes... and ears... and... This parody has gone a bit off the rails.    I want you to all have a look at the most recent Humble Book Bundle.   Humble Book Bundle - Sous Geek Cookbooks https://www.humblebundle.com/books/sous-geek-cookbooks   For the uninitiated The Humble brand/website is a charitable method of publishing your Games, Ebooks or other digital media. Every month Humble compile ...
This post describes how I selected the components for the Sensor Hub. If you aren't familiar with my Cooker Connector project, check out my project overview here!   A Better Digital Thermometer I got the idea for this project after I bought a digital probe thermometer to use with my smoker in the back yard. I did some online research and found the DOT by ThermoWorks, and I love it. It has a digital readout of the current temperature, it beeps when the temperature reaches a configurable alar ...
Stove Assistant - Introduction  Cooking is sometimes difficult. At least for me. Not so much for my wife or my mother. Especially for some meals like pancakes. When I cook them are always partly stiff but also doughy. I think this is because I work at the wrong temperature or let them too long in the pan.   This is where my stove assistant comes in. He will check the actual temperatures and have an eye on the clock and help me to cook pancakes as good as my wife.   The setup The ...
Hello everyone!  This is my first entry into the Pi Chef Design Challenge that I am collaborating on with dougw.  This is also my first time entering into a contest and I am looking forward to the challenge and learning some new things. As mentioned in Doug's first blog(https://www.element14.com/community/community/design-challenges/blog/2018/01/21/the-spice-of-pi-blog-doug-1), I will be doing the software for this project.  For this blog, I am going to be starting out simple an ...
justin.berger

iTender #1

Posted by justin.berger Jan 22, 2018
Hello, My name is Justin BERGER and I am currently working on an automatic bar project. This is a device for making cocktails with pumps sending different drinks into a glass. I have been thinking about this project for several months. This contest will give me a deadline and give a boost for the realization of this automatic bar. But will also allow me to exchange with people interested on this project.        1. The advantages of the project   More and more peop ...
This will be a portable and an interactive food scale. A smart internet connected food scale that talks to your mobile phone. Ideal for home kitchen use. Sensitive enough to weigh herbs and spices. It will also have a wide range, so you can weigh heavy things like flour and rice. It will enable people to weigh ingredients and snacks and then determine the exact amount of fat, proteins, carbohydrates and calories in the ingredients they’re using in recipes or the snacks they’re eating ...
Pi Chef Design Challenge: Bake Mate #1 - Introduction  This project aims to solve a couple of real world problems (and inconveniences) associated with baking. This blog post summarizes my application:     The problems people currently face:   Need to keep referring to the recipe on the cookbook or computer. All those different units from different systems(metric, imperial): Weights in grams, ounces or pounds Volumes in ml, pints, quarts, gallons, cups or tablespoons Tem ...
Background During a recent visit to my in-laws, who own and operate a commercial kitchen, I noticed as part of the morning opening procedure the observation and recording of the cool-room and other fridge and freezer temperatures. My curiosity kicked in and asked why the recording of the temperatures to be told it is a council requirement to log temperatures as it is to do with their food handling licence. Whilst this process took only about 5 minutes of a staff members time, my inner geek start ...
Package arrival!   On Friday I received my challenger kit (massive thanks to Element 14 and Raspberry pi foundation).       I really love the carry bag that came with it   Voice recognition   This week i got started on implementing the voice recognition portion of my project. I started this before my challenger kit arrived so i began using the pi i had previously dedicated to running emulation station. Naturally the first step was a clean install of the lat ...
Intro Blog   <<<--- Unboxing Setup Gourmet Install Load up some Recipes! Enclosure Planning. 7inch Touchscreen Time AIY Build / Google Voice AIY API & Certs Succes with Google AIY!   This challenge gives me an opportunity to implement some ideas I have had to assist my wife in the Kitchen as well as take some new technology equipment and work them into a Cool Design Challenge!   With my family, any involved cooking usually ends up with a laptop being dra ...
Hello!   Busy times here in the household! Wife is very "excited" to finally have a range hood after almost a year without   Edit: Updates on scope of project - Goal: a smart, connected range hood to send images of what's cooking and to alert the user if something doesn't seem right. First post - Smart Range Hood - Pi Chef Challenge Blog post #1   I am planning on integrating this with my home automation system but that brings a lot of questions as to how exactly it ties i ...
Background Some people love eating while many more people love cooking and/or baking. This cooking hobbyist is not limited to just housewives or professional chefs. There are many different reasons why they love this activity. Besides, there are also many different opinions about a fun part of cooking such as we can eat as we go, do an experiment likes a scientist, enjoy the process even just cleaning activity. Moreover, some of them, posses as an amateur chef.   However, some of these cook ...
Wow, I'm so excited to be doing this challenge! But I'm also really nervous. There are a lot of more experienced engineers and this will be the most complicated project I've done on my own. But what better project to do than a fun and not quite impossible challenge? Well, here I go - to the finish line!   Project Overview:   As stated in the synopsis, I'm basically making a cnc cookie machine. Dough goes in, cookies come out. It easily extends to other baked goods as well, like homem ...
For who is this project meant for (and how will it help)? Ever went to the store and started thinking if you had some ingredient at home, or even worse came back home with your hands full of groceries ready to prepare that meal you've been wanting to make for so long just to see that you were wrong when you thought that you had that ingredient that you didn't buy? Or you just maybe want to keep track of how much something you consume. The idea of this project is to make a low cost smart shelf wh ...
    Food. It is what we eat. Breakfast, lunch, dinner, snack, meal, whatever you name it, food is a very important factor in our daily routine.   Humans are a particularly interesting species when it comes our diets.  From the first hunter, and fisher, and farmer, the evolution of our species has been driven by the pursuit of the things we eat and drink. Walking to the refrigerator for a cold beverage and snack, or taking the family and friends out for lunch or dinner, we a ...
First of all, big thanks to Element 14 for the opportunity! The kit is awesome and I’m looking forward to using all the components in upcoming projects.   Just a quick update here since the kit has arrived.     Here is a video of unboxing the kit which arrived in the mail this week. Very excited to get going on this project.   I've been giving a lot of thought to the idea of incorporating a fire suppression system into the hood. I like the idea very much but would ...
Update (1/30/18): This overview is no longer accurate. I had to modify my project plan after I discovered that my original idea already exists as a product on the market. Please see my post about this change of plans here.   The Problem: When cooking for a large group of people, the pressure is on. Home cooks and professionals multitask to ensure every dish is ready to serve at the same time. Small mistakes can lead to cold or overcooked dishes, hangry guests, and wasted food.   When I ...
Do you crack pepper?      I do.   Do you know what over engineering is?      I don't.   An age old problem in the kitchen has been that of obtaining freshly cracked pepper. Throughout human history this have been a gruelling, difficult task requiring a high level of dexterity. This process is in such high demand that many restaurants will provide waiters to save the diners from undertaking the task themselves. My project aims to simplify this ...
*Ding*   "Honey - Your donuts are ready!"   Posts: Post 1: You've already found it! Unboxing video: Challenger kit unboxing!!! Post 2:System architecture and planning - Pi Chef Challenge Post #2 Post 3: Smart Range Hood - Blog Post #3 - Mechanical design complete! Post 4: Pi Chef Challenge - Smart Range Hood - Initial Pi Power up & config - Blog post #4 Post 5: Pi Chef Challenge - Blog post #5 - MQ Sensor Selection Post 6: Smart Range Hood - Can I have a bigger slice of bread ...