Modular 'Pi-Tops' Raise Safety Concerns After Student 'Burns' Finger

If you or an eager young hacker you know has been tinkering with the modular Raspberry Pi-powered Pi-Top 3, you may want to take care when handling it going forward. 

According to TechCrunch, the laptop, created in a bid to help kids learn how to code and better understand the inner workings of electronics, has been raising a number of product reliability questions. One such concern relates to an injury a student at a United States school suffered when they touched a certain component on the device, which had overheated. 

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  • bit_user
    Meh, any burn not requiring an ER visit isn't worth writing about. Sure, if there's not a cover where there should be, then a routine design tweak would be warranted, but this sounds like a whole lot of fuss over basically nothing. I mean, what's next: they ban hammers from wood working class when a student misses a nail and bashes their thumb?

    IMO, this is a great, teachable moment. You get to explain to students exactly what a short circuit is, and why it caused the metal to heat up like that.
    Reply
  • USAFRet
    "The user dropped a piece of metal, with a specific size and shape, under the unit. This fell in such a way that it touched a particular pin and caused a linear regulator to heat up. They received a small minor burn to the tip of one finger when they tried to recover that piece of metal.” "

    A piece of metal, placed on two electrical contacts, can get hot.
    News at 11 !
    Reply
  • IntelUser2000
    This is so stupid. There's a limit to how simple you can teach complex subjects such as electronics. Sometimes students need to be subject to hard work, and the information delivered shouldn't be diluted.
    Reply
  • GetSmart
    USAFRet said:
    "The user dropped a piece of metal, with a specific size and shape, under the unit. This fell in such a way that it touched a particular pin and caused a linear regulator to heat up. They received a small minor burn to the tip of one finger when they tried to recover that piece of metal.” "
    Typically a linear regulator can actually be quite hot (which is why a substantial heatsink is usually required, either using the PCB itself or a dedicated heatsink). If that "piece of metal" caused the linear regulator to heat up, then likely a short circuit to the GND. However linear regulators usually have overcurrent or short circuit protection, which it should shutdown in case of a short circuit.

    USAFRet said:
    A piece of metal, placed on two electrical contacts, can get hot.
    News at 11 !
    Well, only if there is a large current flowing through it (such as from a short circuit). Anyway, the heatsink tab on the linear regulators can become so hot that its usually not touchable (by human fingers).
    Reply
  • Growle
    DAMMIT TIMMY GET YOUR FINGER OUT OF THE PI-HOLE
    faint zapping sounds
    Reply
  • drivinfast247
    “Whilst it is highly unlikely that this would occur again, we are writing to customers to advise them to take a common-sense approach and switch off the unit if something has got lost inside it."

    Good luck with that!
    Reply
  • cryoburner
    bit_user said:
    IMO, this is a great, teachable moment. You get to explain to students exactly what a short circuit is, and why it caused the metal to heat up like that.
    Isn't Cornell Tech an engineering college? This student was probably in their 20s. : P
    Reply
  • USAFRet
    cryoburner said:
    Isn't Cornell Tech an engineering college? This student was probably in their 20s. : P
    You're thinking of Cornell University.

    Cornell Tech is completely different
    https://tech.cornell.edu/

    And this Pi laptop thing is aimed at little kids...elementary school age.
    I would guess no older than 11.
    Reply
  • cryoburner
    USAFRet said:
    You're thinking of Cornell University.

    Cornell Tech is completely different
    https://tech.cornell.edu/
    And this Pi laptop thing is aimed at little kids...elementary school age.
    I would guess no older than 11.

    "Cornell Tech is a technology, business, law, and design campus located on Roosevelt Island in Manhattan, New York City."

    So, are these 11-year olds studying business and law on an island in the middle of New York City? : P This is in fact a recently opened graduate school operated by Cornell University. It looks like they do have a program where kids from area schools can come in for the day to learn about coding though, so it's possible that it may have been a younger student. The article was a bit light on details about that though.
    Reply
  • USAFRet
    cryoburner said:
    "Cornell Tech is a technology, business, law, and design campus located on Roosevelt Island in Manhattan, New York City."

    So, are these 11-year olds studying business and law on an island in the middle of New York City? : P This is in fact a recently opened graduate school operated by Cornell University. It looks like they do have a program where kids from area schools can come in for the day to learn about coding though, so it's possible that it may have been a younger student. The article was a bit light on details about that though.
    Collaboration between the college and the kids school.

    Also light on the level of "burn".
    Was it "ouch thats hot", or was it actual scorched skin? I'm thinking the former.
    But then once it goes to the school nurse to check out...articles like this. "OMG! Burn!"

    The Pi-Top is specifically aimed at younger STEM students.
    Reply