Wireless Home Automation (Control and Monitoring) using Nextion HMI Display_PanelBoard

Translation type Translation results Translation search results 2-layer PCB 38 x 41 mm FR-4, 1.6 mm, 1, spray tin with leads, green solder mask, white silk screen; Today, home automation has become a hot topic among electronic enthusiasts and even the general public . People are busy with life challenges, so electronic devices should take care of the home! Most of these devices require Internet or Wi-Fi for connectivity or do not provide a user-friendly GUI, but I decided to design a standalone wireless monitoring/control unit that can be adjusted using graphics and a touch-controlled LCD display. The device consists of a panel and a mainboard and uses a 315MHz (or 433MHz) ASK transceiver for communication. The panel side is equipped with a high-quality 4.3-inch capacitive touch Nextion display. Users can monitor real-time temperature values ​​and define operating thresholds (to activate/deactivate heaters or coolers), humidity (to activate/deactivate humidifiers or dehumidifiers) and ambient light (to turn lights on/off). The main board is equipped with 4 relays to activate/deactivate the above mentioned loads. To design the schematic and PCB, I used Altium Designer 23. The fast component search engine (octopart) allows me to quickly consider component information and generate BOM. To get a high quality manufactured board, I send the Gerber files to PCBWay. I use the Arduino IDE to write the MCU code, so it's very easy to follow and understand. Designing a GUI using the Nextion tool was a pleasant experience, one that I will definitely follow on similar projects in the future.