Cat Electric Mosquito Repellent Heater

Summer brings a multitude of mosquitoes, making electric mosquito repellents indispensable. This design uses RTP resistors to heat the liquid mosquito repellent, and the casing is shaped like a cat's box. A 2.0-inch LCD screen displays the cat's expression and heating status.
The heating circuit references an open-source electric mosquito repellent project, using an LM321 to control the heating and stopping of four 5.1R 2W ​​metal film resistors. The display uses a GDE230C8T6 minimum system board and a 2.0-inch color LCD screen.
PCB soldering:
Larger component packages were chosen for ease of soldering, making it easier for beginners.
3D casing:
Care must be taken to consider the screen size and the placement of the mosquito repellent liquid.
Decoration:
To enhance the heater's appearance, some decorations were added, inspired by Kira's cat box from Genshin Impact.
Code:
The heating status and screen display require programming; refer to the module porting manual for the GD32E230C8T6 development board. The connection is as follows: https://lceda001.feishu.cn/wiki/JFDCw6gYHiycvakpHj5cSSy0nj9
. Power-on verification is required.