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Elenco 21-886 Escape Robot DIY Kit Ages 13
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$18.99
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ELENCO Educational electronic Escape ROBOT KIT model-21-886. Open box
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I intended to teach my 10 year-old-grandson how to solder. The kit is too challenging for him to do on his own. I showed him each step, and then he did it. He repeated similar steps on his own. He learned about electronic components, at least what they look like, if not how they operate. He learned about polarity, and when it is important to install things so that polarity is correct. We checked and thoroughly rechecked each step, and did a final continuity check at the end. This is essential! A bad solder joint can disable the robot. He was delighted when the robot worked just fine at the end. He demonstrated for his kid sister and parents. The two grandkids put together various obstacle courses, and the robot eventually found its way through the them. My advice is to have an experienced person involved in the kit building because it could be too difficult for a novice. As far as being a worthwhile experience, it was great and will continue to be for a few months until it is overshadowed by some new challenge.Read full review
Verified purchase: Yes | Condition: Pre-owned
This simple robot is built around a 78P156E OTP (one-time programmed) microcontroller, with H-bridge discrete transistor circuits driving two DC brush motors. The motors drive twin gear boxes that are remarkably smooth considering that they are (rather cleverly) based on a few plastic gears. This is a fun kit that could be a lot more fun if it were an "open" design, with a re-programmable controller. Could there be a re-programmable, pin-compatible, drop-in replacement for the 78P156E? Maybe, but I couldn't find one. Let me also point out that there is not enough room on the robot's circuit board to accommodate a ZIF (zero insertion force) socket for the microcontroller. So consider this a nice toy rather than a low-cost robotics platform.
Verified purchase: Yes | Condition: New
Very nice toy for collection
Verified purchase: Yes | Condition: New
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