A representative development scheme of vibrator MCU

• Function: vibration motor
  3.7V lithium battery (can be charged without polarity, magnetic attraction, USB, or micro, type-C)
  Input power supply: dc5.0v/500ma
  Standby power consumption: less than 10uA
  Charging current: 500mA
  1. When charging, the indicator light flashes and is on for a long time.
  2. Long press the key to start the vibration motor, short press the 10 frequency switch, and long press the key to close the vibration motor.
  3. Low battery prompt alarm (low battery prompt and low battery protection when the battery is lower than 10%)
  4. Customized development