• RST LED

     Jarda updated 1 year, 2 months ago 3 Members · 8 Posts
  • joeg

    Member
    January 29, 2020 at 12:31 pm

    Hello,

    I’ve been working with a MEGA for a while, but now the RST LED is constantly on and I can’t upload any new sketches to my device.

    I would appreciate any assistance you could offer.

  • Jarda

    Member
    February 10, 2020 at 11:40 am

    Hello,

    please try to check the reset button mechanically. If you open the housing, it can be, that the reset button is pressed all the time.

    Regards

    Jarda

  • joeg

    Member
    March 1, 2020 at 8:35 am

    Hello,

    I Opened the housing and checked the resistance between the separate terminals of the button.

    The maximal resistance is ~50 ohm. Isn’t this too low?

    I opened the button and removed the cap that connects the terminals when pushed, bit I still read a very low resistance across terminals.

    The even lower resistance for the open channel is ~0.5 ohm, which makes sense.

  • Jarda

    Member
    March 6, 2020 at 10:31 am

    Hello,

    so no peripheral is connected to CONTROLLINO?

    BR

    Jarda

  • joeg

    Member
    March 17, 2020 at 9:02 am

    No peripherals connected.

  • Jarda

    Member
    April 17, 2020 at 12:05 pm

    Hello,

    so please send it back for reclamation. We will check the problem and let you know.

    Regards

    Jarda

  • andrew8020

    Member
    July 17, 2020 at 2:48 pm

    Hi Jarda,

    I am having the same problem on a MEGA that was working, the RST light is permanently on, I can’t upload or run existing program, resistance across reset button is 32 ohms when open and MEGA disconnected.

    Any assistance would be greatly appreciated.

    Thank you

  • Jarda

    Member
    July 20, 2020 at 2:22 pm

    Dear Andrew,

    I’m very sorry that you have similar problem. Please send it also back for reclamation, we will analyse it here.

    BR

    Jarda

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