DFRobot Non-Contact Liquid Level Switch - FIT0212 3.7v The Stepper Motor 12VDC 32-Step

The Stepper Motor 12VDC 32-Step 1/16 Gearing is a practical stepper motor from Circuitrocks for students

Common Arduino pick for door locks

load monitoring

There are also some inside sounds to remind the user working state of the module

DFRobot Non-Contact Liquid Level Switch - FIT0212 3.7v The Stepper Motor 12VDC 32-StepDetect Nearby Objects Without Contact The Non Contact Liquid Level Switch is a button or switch input module designed for obstacle detection, touchless triggers, object counting, and simple automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds. Key details include Power supply: +5V. Why youll love it Useful spec: 1~13mm Power range: +5V Current draw: 25A Maker friendly build: Easy to use