Tell me the circuit principle of the electronic paper tube gunpowder pistol DIY toy $100

Hello I can do this. Please share the details of the task so that I can check and confirm accordingly.

【基本介绍】 I am OSMEX and I have extensive experience in circuit design and development. I have worked on a lot of projects designing PCBs, programming, and patent projects. My skill set includes electronics, microcontroller, PCB layout and more. I am confident that I can deliver a successful project for you. Please let me know if you are interested in discussing further or need any additional information for making a decision on hiring me for this project.

Thats an easy one to me i studied well. I will do inform you as the price rate. No problem about that.