Bakerino,a leavening chamber.#cloudgames 2022 contest WINNER

heating cable

ultrasonic vaporizer

DHT22 temperature-humidity sensor

Arduino Oplà IoT Kit

Switch Actuator, Head for spring return push-button

Arduino IoT Cloud

Ultrasonic Sensor - HC-SR04 (Generic)

LED Light Bar, Daylight

Relay Module (Generic)

Arduino IDE

<p >presentation video:</p><p ></p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/pghxb7XIax4" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p > </p><p >First of all I want to thank all arduino staff  for letting me partecipate to the arduino cloud games 2022, this gave me the right motivation for the building of the leavening chamber my girlfriend asked me for like 2 years...</p><p >I live in an house with low humidity percentage and the leavening of pastries and pizzas have always been a struggle, so I decided to present my project for a leavening chamber with controlled temperature and humidity and just got selected!</p><p >the idea is to warm the inside of the box with an heating cable running along the back of the walls, aluminium  will spread the heat uniformly. In my house the temperature never raise over 28 degrees and leavening need 30 degrees max, so I don't need a sistem to cool down the chamber, but with a peltier system and some few more code lines it can be added. To control humidity I used an ultrasonic vaporizer (like the ones you find in olistic lamp), you can find them easily of internet for few euros, they use ultrasonic waves to vaporize liquids. Mount a light in the back to illuminate the inside and see how the leavening is going. An ultrasonic sensor mounted on the top of the box to monitoring the dough  growth. obviously an humidity and temperature sensor inside the box, I used a DHT21.</p><p >After some days of mental projecting and waiting for the oplà kit to arrive I started to build the chamber.</p><div id="gallery"><img id="gallery" src=https://projects.arduinocontent.cc/650738a8-4586-4da3-8336-8a9bcbe4d568.jpg /><figcaption>Back of the panels, they will be insulated with polystyrene</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/d9630f2b-9f5f-451d-b2f1-689aca5ba470.jpg /><figcaption>add some lateral supports for the pizza's leavening in the pans</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/cb53a885-3ff6-417a-b9c4-15e38cdfa2a6.jpg /><figcaption> </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/714917e1-10d9-4231-abff-e0d5635470d5.jpg /><figcaption>upside down</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/a1d6fe6e-0d3b-48dd-808c-0f300a1ee60d.jpg /><figcaption>light test, wow!</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/933b88bf-b09d-4171-b472-6b123c5bc4ff.jpg /><figcaption>insulated wall</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/78fbba0a-b82e-4fab-a18e-b39f6bb1aab1.jpg /><figcaption>front door, with plexi window to see inside</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/ded9ad1f-d028-47b8-8f42-d98f9589b780.jpg /><figcaption>second light test, wow!</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/e08a7c90-41fe-4831-b3fc-0e7dae731e39.jpg /><figcaption>created a hole carrier shaped for the controls</figcaption></div><p >after creating the box, I wired the 2 sensors, the heating cable, the light and the ultrasonic vaporizer</p><div id="gallery"><img id="gallery" src=https://projects.arduinocontent.cc/e4da08a9-a965-46d2-a869-4f75a6f184df.jpg /><figcaption>wiring the ultrasonic sensor </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/ed528e5b-6f4e-4ffd-9b4f-ef24d2c6c444.jpg /><figcaption>ultrasonic sensor inside the chamber</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/cbeb34d5-22fb-4ddd-9e47-cba91873dea5.jpg /><figcaption> </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/87365a20-a164-4252-9423-9d6b261a2960.jpg /><figcaption>heating cable running back aluminium walls</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/9b29f10f-3035-42c6-ad8b-9d8253905439.jpg /><figcaption> </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/c5da9e9b-692d-4c00-92ae-13d42445cab2.jpg /><figcaption>dht21 inside chamber</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/f8912f6a-46bd-432c-b5e4-2c51fa1954ae.jpg /><figcaption>ultrasonic vaporizer</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/0545ef3c-006f-41be-84fb-51fafeecc67e.jpg /><figcaption>insulating all the walls</figcaption></div><p >and finally wired the carrier. Unfortunately the button 3 of my carrier didn't work at all, so I bend the a3 pin in the arduino board so I can use it as trigger pin for the ultrasonic sensor. I used the a5 as echo pin for the ultrasonic sensor as well, and the a6 pin for the dht21 sensor. relay 1 for the ultrasonic vaporizer that works  with 24 volt, relay 2 to control another relay that control the eating cable, because the carrier's relay can manage up to 24 volts and the heating cable works with 220 volt. Lights work separately from the carrier with their own button.</p><div id="gallery"><img id="gallery" src=https://projects.arduinocontent.cc/8c7f073a-9607-46c0-892a-bf9fe02ff712.jpg /><figcaption>little bit of cable mess</figcaption><img id="gallery" src=https://projects.arduinocontent.cc/ef7df650-df62-4e73-bce4-3c37054b1e83.jpg /><figcaption> </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/35968775-cbca-4100-9e16-7973c51d11ec.jpg /><figcaption> </figcaption><img id="gallery" src=https://projects.arduinocontent.cc/611de5c3-1c76-4376-8e8b-a5d76a8fdee0.jpg /><figcaption>A3 pin binded</figcaption></div><p >powering up for the first time!</p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/1a-dxuY65AU" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p >for the programming part I tried to create a commercial-portable sketch, so the chamber have an option menu where the user can decide the language and the temperature measuring unit. I didn't have much spare time and the games deadline is approaching so the menu is pretty simply, as the interface, but in these month i'm going to work on it and add other features...</p><p >while trying to save the user's preferences I found that the mkrwifi1010 do not have EEPROMS memory, but I can save the data using flash storage library that use a portion of the flash memory to keep datas also after a board's reset.</p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/Yglw0h-9n2k" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p >once you selected the desired temperature and humidity the chamber takes time to setup and reach desired settings. when ready ask the user to insert the dough and confirm. in this moment the chamber measure the distance between the roof and the dough, so while leavening it show how much is growth.</p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/jn0ExufEOaI" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p ></p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/7yG7utc54Fs" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p >for the iot part I created a dashboard where the user can monitor the actual temperature and humidity (show in 2 charts as well), change the targets and turn off the leavening.</p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/2xNCXyB5dks" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p >and that's all! I really enjoy this time spent on the project, I want to thanks again all arduino staff for letting me partecipate, all the users on discord channel and my girlfriend for all the pizzas in the future... :-D</p>

schematic

bakerino code

Bakerino,a leavening chamber.#cloudgames 2022 contest WINNER

Project created for the #arduinocloudgames2022. Perfect leavenings with arduino and the iot carrier!