Additional update!

Here is the schematic used for the first revision of the Smart Earbuds Charging PCB.

This schematic includes:

• USB-C power input
• TP4056 charging controller
• Battery protection circuitry
• Charging and full-status indicators
• Battery and output connections

The PCB layout shared previously was generated from this schematic design.

Next, I will continue reviewing the design and making improvements before preparing the board for manufacturing.