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DIY UPGRADED VERSION 300
DIY Upgraded Version 300 advanced learning kit with 300 components for electronics, STEM experiments, and hands-on DIY projects.
DIY Upgraded Version 300 is an advanced DIY learning kit designed for deeper exploration of electronics, STEM concepts, and hands-on building. Featuring 300 upgraded components/build elements, this kit supports a wide range of experiments and complex projects, making it ideal for students, makers, and hobbyists looking to move beyond basic kits.
The upgraded version encourages innovation, critical thinking, and practical circuit-building skills. It is well suited for STEM classrooms, robotics labs, workshops, and serious DIY learners who want flexibility, scalability, and enhanced learning through real-world experimentation.

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- Limit switches:Â 6
- Micro-stepping:Â 1/16
- Coolant enable
- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
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Mini Portable Virtual Laser Projection Keyboard and Mouse Wireless Bluetooth
- Compatible with Android, iOS, Windows and Mac all kinds of operation systems that can be used with any phone, tablet, PC and laptop for a smooth and fast way of text input.
- Built-in Bluetooth for connecting to other devices without complex wired troubles
- More stable and smarter
- Can change the mini USB port to micro USB port.Â
- With mini Bluetooth speakers, which support voice reporting and music playing
- 3 in 1 Function: Laser keyboard,Mouse and bluetooth speaker
- Good touch sensitivity
- The BEEP sound and brightness can be adjusted on the laser keyboard

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