Explore a variety of demo projects for Raspberry Pi Pico, covering displays, sensors, automation, memory, IoT, audio, and more. Ideal for makers, electronics enthusiasts, and engineering students.
Workshop for NodeMCU by Siu Yuen Ho



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BlueGrays is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.






Explore a variety of demo projects for Raspberry Pi Pico, covering displays, sensors, automation, memory, IoT, audio, and more. Ideal for makers, electronics enthusiasts, and engineering students.



Explore a variety of demo projects for Arduino development boards, including displays, sensors, and automation. Control home appliances with voice assistants and send sensor data to IoT platforms. New projects are added regularly.


Master Arduino programming with over 200 practical lessons, circuit diagrams, and code examples. This app guides beginners and experienced users through electronics and project building in 14 languages. The Pro version offers advanced features for enhanced learning.


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This app serves as a comprehensive reference for digital electronics, covering essential theory and practical guides. It's designed for students, engineers, and hobbyists to learn and prototype digital circuits with ease. Features include detailed information on logic gates, IC families, and various digital components.







