Project
| # | Title | Team Members | TA | Documents | Sponsor |
|---|---|---|---|---|---|
| 11 | AUTOMATIC HUMIDITY SENSING AND WATER REFILLING COOL-MIST HUMIDIFIER |
Andrew Sherwin Jalen Chen Woojin Kim |
Surya Vasanth | design_document3.pdf final_paper3.pdf photo1.PNG photo2.jpg presentation1.pdf proposal2.pdf video video |
|
| # Team Members: - Woojin Kim (wkim51) - Andrew Sherwin (zyxie2) - Jalen Chen (jalenc3) # Problem The problem we want to solve is the lack of humidity in indoor environments, especially during the winter months. Humidity levels are often very troublesome to control, having to continuously modify the humidifier output level to fit your perfect needs. You would have to keep adding water in the humidifier every time it runs out. Bacteria, minerals, and mold tend to form over time in the water tanks. Ultrasonic humidifiers will vibrate these particles into the air, and are detrimental to the user’s health. Hot-mist type humidifiers also tend to congest nasal passages, as well as high energy costs. The cost-must humidifier works by evaporating water using a fan. This is the safest, and cleanest way to humidify a room, therefore, is the method we will be using. # Solution To resolve the problem brought up, we have decided to produce an automatic humidity detecting humidifier. The idea is the humidifier will know when to turn on and off depending on the readings of a humidity sensor. The humidity sensor will be placed in a location away from the humidifier. This will prevent false readings from being in a close proximity to the humidifier. Every few minutes, the humidifier will communicate with the sensor before deciding to turn on or off. Update: 01/25/2024 15:10 - We will incorporate multiple sensors to detect multiple humidity readings in a room. We may average the readings for the humidity range, and the different readings will tell the humidifier which direction needs more humidifying. # Solution Components ## Subsystem 1 ## Humidity Sensor Explain what the subsystem does. Explicitly list what sensors/components you will use in this subsystem. Include part numbers. The humidifier will have a ESP32 chip that communicates with the remote ESP32 chip which is connected to a BME280 sensor. The BME280 sensor is able to communicate with I2C and SPI. We will use SPI for communication with the ESP32 microcontroller, with the ESP32 being the master. The ESP32 in the humidifier will be the master. We plan to use the ESP32 in the humidifier to bring up a WiFi connection, as the host, and the remote ESP32 will join the host’s connection for communication. The ESP32 will be powered via a barrel jack and an AC to DC converter. 2x ESP32-S3-WROOM https://www.digikey.com/en/products/detail/espressif-systems/ESP32-S3-WROOM-1-N16R2/16162644 1x Temperature/Humidity SensorBME280 https://www.digikey.com/en/products/detail/bosch-sensortec/BME280/6136306 1x AC/DC barrel jack plug https://www.digikey.com/en/products/detail/tri-mag-llc/L6R12-090/7682630 ## Subsystem 2 ## Humidifier The humidifier will have a round base, similar to that of a mug. Inside the enclosure will be a filter. The filter will be wet, as water is fed in from the base of the enclosure. Above the wet filter will be a quiet fan that accelerates the evaporation of the wet filter. There will be a water level sensor at the base of the humidifier to sense when more water needs to be added. When an insufficient amount of water is detected, the ESP32 in the humidifier will tell the water dispensing system, discussed with the machine shop, to activate and trickle fill the base of the container. It will stop when the water detector determines there is enough water. The fan will activate, continue activating, or turn off depending on the data from the remote ESP32. The idea is to have an electronic valve that turns on and off the water supply. For the demo, the water supply will be from a tank, but the product should be connected to a building's water supply. The PCB will be connected to the wall via a barrel jack to an AC to DC converter. Update: 01/25/2024 15:10 - The humidifier will have a rotating head or body that can adjust the wind flow direction of the fans depending one which area in the room needs more humidity. 1x Humidifier Filter https://www.amazon.com/Lxiyu-Humidifier-Wicking-Compatible-Replacement/dp/B088WG2QF8/ref=sr_1_2_sspa?crid=1CIMXRNSVCXBJ&keywords=humidifier+wicking+filter&qid=1706162957&sprefix=humidifier+wicking+filt%2Caps%2C122&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1 1x irrigation pipe https://www.amazon.com/ZZM-360%C2%B0Tree-Watering-Sprinkler-Irrigation/dp/B0B5GW28YC/ref=asc_df_B0B5GW28YC/?tag=hyprod-20&linkCode=df0&hvadid=647314406102&hvpos=&hvnetw=g&hvrand=2915494740902510298&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9022185&hvtargid=pla-1954342074615&psc=1&mcid=5423b99a7bef38d4b629f5773e55ffc2 1x water resistant quiet fan https://www.amazon.com/Coolerguys-120MM-120X120X25-Airflow-Waterproof/dp/B07NMC9X38/ref=sxin_14_pa_sp_search_thematic_sspa?content-id=amzn1.sym.97527784-1102-40e6-925d-b95bb0c9f9e6%3Aamzn1.sym.97527784-1102-40e6-925d-b95bb0c9f9e6&crid=2LYEA1XUQ1U02&cv_ct_cx=waterproof%2Bfan&keywords=waterproof%2Bfan&pd_rd_i=B07NMC9X38&pd_rd_r=2552965a-ddcc-4837-b12f-840f4493f7c6&pd_rd_w=dupGO&pd_rd_wg=MdZFw&pf_rd_p=97527784-1102-40e6-925d-b95bb0c9f9e6&pf_rd_r=GRHM9G2MGXFZES6APX0B&qid=1706164051&s=lawn-garden&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sprefix=waterproof%2Bfan%2Clawngarden%2C139&sr=1-1-364cf978-ce2a-480a-9bb0-bdb96faa0f61-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9zZWFyY2hfdGhlbWF0aWM&th=1 1x contactless water level detector https://shop.pimoroni.com/products/contactless-water-level-sensor-module?variant=40162797322323 1x AC/DC barrel jack plug https://www.digikey.com/en/products/detail/tri-mag-llc/L6R12-090/7682630 # Criterion For Success - Our project would need to achieve a multitude of high-level goals to be sufficiently complete. Some goals would include: - ESP32 is able to read data from the humidity sensor - ESP32 is able to communicate with ESP32 in the humidifier - Multiple ESP32 sensor PCBs communicating with humidifier PCB for multiple humidity readings - Humidifier’s fan is able to turn on and off based on a humidity range - Humidifier is able to rotate and adjust its wind direction to a direction that needs more humidity - The filter irrigation system irrigates the filter when the water level sensor readings indicate more water is needed //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Updated: 01/25/2024 15:10 - Added multiple sensors and rotating humidifier |
|||||