Features:
- Directly plug-in famous A4988 or DRV8825 stepper driver
- Easily control the stepper motors via just 2 digital I/O
- Easy connection of cables via screwless PC terminals
- Build-in DIP switch for adjusting driving modes
- Connector for DC 5V input power (Signal)
- Connector for DC 9V – 24V input power (Stepper Motor Driver)
LM741 Operational Amplifier IC
13003 NPN Transistor
24V Ultrasonic LED Humidifier with Power Adapter
Classic Train Play Set
Humidifier Floating Buoy
3144 Hall Effect Sensor
Soil Moisture Sensor






