![Technic Disc 3 x 3 with 4 Black Sections on One Side and 8 on Reverse Print [Speed Sensor]](https://cdn.rebrickable.com/media/parts/photos/15/2723pr01-15-c6fd6939-2037-4995-9a3f-f6d69c867391.jpg)
The Optosensor is a foundational piece for LEGO education.
The Optosensor is a foundational piece for LEGO education. Released in 1992 as part of the Educational and Dacta line, it offered students a hands-on way to explore light sensors and basic programming principles, representing LEGO's early commitment to STEM learning.
This set is perfect for educators, LEGO historians, and robotics enthusiasts. While not a conventional 'build' in the traditional sense, it provides a tangible link to the origins of LEGO Mindstorms and the company's foray into educational robotics.
Skip this if you're looking for a challenging building experience or a display piece. Its value lies in its historical significance and educational applications rather than its aesthetic appeal. Consider modern Mindstorms sets for a more complex robotics experience.
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Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer
The provided YouTube reviews focus on MOCs and other LEGO projects, rather than reviews of the 9865-1 Optosensor itself. Content creators like Moshi showcase complex builds and mechanisms, but there is no direct opinion on the specific sensor.
The reviews highlight custom LEGO creations, such as battlebots, tanks, and transformers, with channels like Moshi demonstrating functionality and design. Markdykstra36 features a tank with a rotating turret, emphasizing its 'awesome' factor.
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