Another week has passed for the challengers of the Pi Chef Design Challenge, bringing us up to our week eleven, which also marks the end of this challenge!  I decided to wait until April 1’st to begin writing this update so that I would have all of the final updates covered. That means that we have a lot to cover this week, but before I get started let's take a moment to learn more about this challenge.



Pi Chef Design Challenge


About The Challenge


Featured as the first design challenge of 2018, the Pi Chef Design Challenge opened for project idea submissions in October of 2017, which was met with many submissions from community members. As I mentioned earlier, the challenge is based around the Raspberry Pi 3 Model BRaspberry Pi 3 Model B SBC. Challengers have eleven weeks to develop their project, and share their progress in a series of weekly update post. By posting a minimum of ten update post, challengers become eligible to win several awesome prizes, and the chance to become one of our prestigious design challenge winners.



Entering the challenge is not limited to just the ten chosen community members though,  anyone can join the Challenge as a non-sponsored Challenger. Here's how: Simply get buy  a Raspberry Pi 3 model B and integrate it into your project, as well as post 10 blogs chronicling your project’s progress into  the Pi Chef Design Challenge space (tagging your blogs 'IoT on Wheels'). All Challengers must build their projects in accordance with the Challenge's terms and conditions, and all projects must include the Raspberry Pi 3 Model B.



The Official Kit, and The Prizes


On January 10, 2018 Element14 announced the 15 community members that were picked to participate in this challenge, and those challengers received a kit of sponsored components to use in their design which was based around the Raspberry Pi 3. If you would like to purchase the official kit, click here.


Each kit contains the following items:


To learn more about each of these components or to purchase them to use in your own project, visit the official kit announcement at the links above.


Each challenger is competing to win one of three prize packs that feature the following prizes:


Grand Prize

        • Breville Barista Express Espresso Machine
        • $1500 USD Newark element14 / Premier Farnell Cart

Runner Up

        • Whynter Ice-Cream Maker
        • $750 USD Newark element14 / Premier Farnell Cart

Third Place

        • Breville Tea Maker
        • $500 USD Newark element14 / Premier Farnell Cart


A finisher who has completed their project, used the Raspberry Pi, posted 10+ updates in the Pi Chef space and adhered to the requirements in the Terms and Conditions will receive a mystery package of element14/Premier Farnell products valued at $65 USD.



The Past Week In Review


Over the past 8 days, March 25th - April 1st, we have had a total of 31 updates posted across thirteen projects. I’m going to pick a few of my favorite updates from the week and highlight them below, but before we get into that lets take a look at which projects were updated this week!




This Week’s Top Updates


Project: S.H.E.L.F. - Pi Chef Blog #10 - The First Working Prototype



Kicking things off this week is the tenth update to project S.H.E.L.F. by Milos Rasic (milosrasic98). The final week of any design challenge is always a special one filled with working demos from all of the projects, and that is exactly what we got from Milos this week. In his project’s tenth update he shared some of the code he is using to read the data from two load cells this time instead of one, and how that data is being displayed in his mobile app. “At this point, the S.H.E.L.F. registers when something is put on top of it, scans the shelf area with the camera looking for a label, then if the label detection goes through it uploads data online where I can view it on a phone or on a different computer,” he wrote... “And with that I would like this finish up this blog. I am really happy to see all of the parts of the project working together as a whole. This has been a really fun challenge. I will have another blog after this one where I'll do a recap on everything that has been done, can be done and stuff like that, with the use friendly code, step by step guide and the upgrades for this prototype which will make just a tiny bit better. Thanks for reading the whole blog, hope you liked it!”



Project: Stove Assistant  - Pi Chef Blog #6.5 - Tests with bigger pot



In the first of four updates this week, Bernhard Mayer (bernhardmayer) was once again back at the stove top testing out his grid eye setup. With his measurements being spoiled by rising steam in previous experiments, he decided to use cooking oil as the test subject this week, and things worked out much better. “My next thought was that maybe the grid-eye sensor is not measuring the temperature of the water surface in the pot but instead the temperature of the steam between pot and sensor. I tried to eliminate this by blowing the steam away with a fan but it didn't change anything on the measurements,” he wrote. “To get this measurement right I made a new setup. Instead of boiling water I heated cooking oil. Then there is no steam and this won't influence my measurements. I made a reference measurement with an infrared thermometer and compared it to the measurements of the grid-eye sensor.” Check out the link above to find out if this new method was as accurate as he had hoped!



Project: PiCA - Pi Chef Blog #9 -  Integration (Part 3)



With two days left to go, Budiman Putra (giganggu) shifted into high gear to get project PiCA finished before the challenge deadline. “I think the progress is around 80-90%. So, hopefully, I can finish the remaining 10-20% before the deadline ( maybe in the last minutes). This post shows my progress in finishing the program 2 (the hardest problem), finishing the block set (master and slave) since I made modification and changes in this component, and then the weight estimation based on OpenCV,” he wrote. You will have to read the rest of the update to find out how close he got to finishing in this update, and if any bugs are going to prevent him from finishing. PiCA has been one of my top project’s this challenge, and I am very excited to see how it turned out.




That is going to wrap up this weekly summary of the Pi Chef Design Challenge. Remember to check back in a few weeks for my full challenge summary, and in the meantime, I will be posting project summaries of my favorite projects from this challenge. I would love to hear your thoughts on how the challenge finished up, and what projects you feel accomplished their goals. Let me know in a comment below!


If you would like to learn more about this challenge, and to see what progress has already been made, head over to the its official challenge page, and if you would like to follow what I am up to these days, follow me on Instagram I want to apologize for this post being a little late, but with 31 updates to read through, it just took some time to put together.  I will see you later this week with a few project summaries, until then remember to hack the world and make awesome!


Weekly Summaries About This Challenge

  1. Design Challenge Weekly Summary: Intro to the Pi Chef Design Challenge
  2. Design Challenge Weekly Summary: January 14 - January 20, 2018
  3. Design Challenge Weekly Summary: January 21 - January 27, 2018
  4. Design Challenge Weekly Summary: January 28 - February 3, 2018
  5. Design Challenge Weekly Summary: February 4th - February 10th, 2018
  6. Design Challenge Weekly Summary: February 11th - February 17th, 2018
  7. Design Challenge Weekly Summary: February 18th - February 24th, 2018
  8. Design Challenge Weekly Summary: February 25th - March 3rd, 2018
  9. Design Challenge Weekly Summary: March 4th - March 10th, 2018
  10. Design Challenge Weekly Summary: March 11th - March 17th, 2018
  11. Design Challenge Weekly Summary: March 18th - March 24th, 2018
  12. Design Challenge Weekly Summary: March 25th - April 1st, 2018