LED constant current driver

Design Opportunity
This design is for the title of our school’s e-sports competition. However, due to my poor skills, the plan still has many shortcomings.
This open source is also for everyone to criticize and correct, and I hope that this immature solution can give everyone a little inspiration. Next are the functions that have been verified for
this topic 1. Charging function (based on charge and discharge management module CD42) 2. Buzzer alarm 3. Battery voltage sampling 4. OLED screen display 5. The maximum driving current reaches 1.5A (using LED lamp bead parameters: 10W, 3.6-4V/2A/. [Taobao] 6. Supports PWM modulation of drive current 7. Button change working mode Current deficiencies and areas for improvement 1. Although the current driving mode modulation method is theoretically supported Switching between PWM and TLC5615 modules, but the analog SPI used cannot drive the module. Due to my temporary lack of ability, it needs to be improved. 2. The layout of the main control board is unreasonable and the connection method with the driver board is not sufficiently considered, resulting in module failure. The connection is unstable... Finally , I would like to thank my two friends for working with me on the design and development of this module.