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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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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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Dimension: 33*27.5mm
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With mounting holes

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