Cat electric mosquito repellent heater

There are so many mosquitoes in summer that electric mosquito coils are essential. The electric mosquito repellent liquid is heated by RTP resistor heating, and the outer shell is designed as a cat box. A 2.0-inch LCD display displays the cat's expression and heating status.

The heating circuit refers to the open source electric mosquito coil project, using LM321 to control the heating and stopping of four 5.1R 2W ​​metal film resistors. The display part uses the GDE230C8T6 minimum system board and a 2.0-inch color LCD screen.

Board welding:

We chose a relatively large component package, which is more suitable for novice welders.

3D shell:

For the shell, pay attention to the size of the screen and the placement of the electric mosquito repellent liquid.

Decorative part:

In order to make the heater look more beautiful, I added some decorations on the outside, inspired by Kirara's cat box in Genshin Impact:

Code part:

What needs to be programmed is the heating status and screen display. You can refer to the module transplantation manual of the GD32E230C8T6 development board. The connection is as follows https://lceda001.feishu.cn/wiki/JFDCw6gYHiycvakpHj5cSSy0nj9

Power on verification: