Smart Auto Window Opener v1 (Wi-Fi)
Description
### Summary DIY inspired by Vektiva SmarWi product from Czech Republic. It can open and close window ventilation with wifi commands. Can be customized for Smart Homes systems. ### YouTube video https://youtu.be/Q-FsNvmDmAk ### Characteristics: Arduino Wemos D1 Mini (Wi-Fi 2.4 GHz) Very powerful 35 RPM motor with gearbox (and with "self-locking" function) Can be tweaked for almost any window For 9-15V power supply Adjustable stop switch for closing Open time and speeds can be customized via webpage Basic Arduino code attached (you need to specify ESSID and wireless key inside it) No cloud (public IP and portforward needed for remote control from internet) Physical button (if you do not have Wi-Fi or for emergency control) It is a little noisy (not suitable for night time) It should be glued or drilled to both window and window frame ### Commands: There is no password for this moment! http://IP_ADDRESS/ (settings and status) http://IP_ADDRESS/open (it will open window) http://IP_ADDRESS/close (and close window) http://IP_ADDRESS/unload (if you want fully open window or dismantle everything) ### Shop list: Motor 12V (~35RPM): https://www.banggood.com/DC-12V-356065110220rpm-Worm-Gear-Box-Reduction-Motor-p-1197020.html?p=KF2715792233201409DJ&ID=47606&cur_warehouse=CN or https://www.aliexpress.com/item/33036140291.html (~35RPM and 6 mm shaft without hole) Endswitch and button switch: https://www.aliexpress.com/item/4000638059196.html Arduino Wemos D1 Mini: https://www.aliexpress.com/item/32787418018.html Motor driver TB6612FNG: https://www.aliexpress.com/wholesale?catId=0&SearchText=tb6612fng (Order carefully! I repeatedly received wrong board DRV8833 without PWM function.) RJ45 port: https://www.aliexpress.com/item/32974903992.html (I ripped one from my old wifi router) DC power jacks: https://www.aliexpress.com/item/4000907311371.html White button cable: https://www.aliexpress.com/item/33026678139.html (between main unit and button unit) 2x 47k resistors: https://www.aliexpress.com/item/1005001437008358.html Cable window holders: https://www.aliexpress.com/item/1005001436039914.html ### Software "Arduino IDE v1.8.x" is needed: https://www.arduino.cc/en/software Windows Drivers for "Wemos D1 Mini" is needed: https://www.wemos.cc/en/latest/ch340_driver.html Install ESP8266 package into IDE: Enter https://arduino.esp8266.com/stable/package_esp8266com_index.json into the File > Preferences > Additional Boards Manager URLs field of the Arduino IDE In the board manager search for "esp8266" package and install this older version: 2.5.0 Select "LOLIN (Wemos) D1 R2 mini" at Tools > Board Select your Wemos serial port at Tools > Port Change this settings: Tools > FlashSize to "4M (2M SPIFFS)" Download and open INO source file from this Thiginverse project Change your wifi settings at line 12 and 13 Compile with Project > Upload Wait for 100% Check assigned IP address with Tools > Serial Monitor or from your home wifi router settings ### Some thoughts Do not tighten comb piece to much. It should be a little loose to tilt down with window.
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