Our company has a professional development team that helps customers develop solutions for free
A representative (MCU solution for adult female products) vibrator MUC development plan:

Function: Vibration motor
3.7V lithium battery (can be charged non-polar, magnetically, or via USB, or MICRO,TYPE-C)
Input power supply: DC5.0V/500mA
Standby power consumption: Less than 10UA
Charging current: 500mA
When charging, the indicator light flashes and remains on when fully charged.
2. Long press the button to turn on the vibration motor, short press the 10-frequency switch, and long press the button to turn off the vibration motor.
3. Low battery alert and alarm (Low battery alert and low battery protection when the battery level drops below 10%)

4. Customized development is available