Forums Latest Members

Electronic chip replacement.

  1. sheepdoll Aug 31, 2023

    Posts
    2,057
    Likes
    3,359
    While looking for something else, I found the old sample AVR processor I got at a trade show.
    IMG_4137.png

    This thing is about as powerful as an early Apple][ computer. When I got it I connected it to some fine wires salvaged from a power cord and was able to read the device signature. I may have some even smaller ones somewhere.

    Downside is they need about 2.7v to run although I think the brownout can be set to 1.8. Not sure how small a charge pump can be.

    Went through that pound of mostly fake chronograps I got from goodwill, So I do have some movements I can use for testing.

    Curious that the decent stuff like Omega and Heuer do not sell for the low scrap prices the Fosil, MK, and DKNY watches sell for.
     
    Edited Aug 31, 2023
    RevZMan123 likes this.
  2. RevZMan123 Aug 31, 2023

    Posts
    1,938
    Likes
    3,994
    I remember doing stuff like that to my old C64 -- adding a 2nd SID chip was the first. Then soldering an extra processor to my Nintendo to play offshore games. Building SIPPs as my afterschool job in High School. Slotting in math co-procs to my 386s. Good times!
     
    sheepdoll likes this.
  3. Fish70 Aug 31, 2023

    Posts
    960
    Likes
    10,704
    I remember having to cut a trace on the circuit boards of 1541 drives to permanently change the drive's device number so I could use more than one disk drive!
     
    marco and Mark020 like this.
  4. lejaune Sep 21, 2023

    Posts
    138
    Likes
    133
    There are some 3v Lithium coin cells that may fit into the original 1.55v battery cage, if your purpose is to use the controller in place of the original chip. The smallest I know of a 3v lithium coin cell is CR1025, 10mm diameter and 2.5mm thickness, compared to a 344 silver oxide with 11mm x 3.0mm.
     
    Edited Sep 21, 2023
    sheepdoll likes this.