tiefpunkt’s avatartiefpunkt’s Twitter Archive—№ 14,602

              1. My new computer from @Guki_0 arrived yesterday 🥳 Time to unpack that thing... Just wondering, is this #retrocomputing or now? #tindie
                oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
            1. …in reply to @tiefpunkt
              The PCB is really nice, I like the matte finish. Where did you have these made, @Guki_0?
              oh my god twitter doesn’t include alt text from images in their API
          1. …in reply to @tiefpunkt
            Anyway, let's put this thing together. The instructions say to start with the keyboard, but don't you usually start with the flattest components first? Cause that's what I'll do now. Instructions don't include color codes for the resistors, that would be a good addition...
            oh my god twitter doesn’t include alt text from images in their API
        1. …in reply to @tiefpunkt
          With all the flat stuff soldered on, let's do the keyboard. Isn't that a lovely big pile of buttons?
          oh my god twitter doesn’t include alt text from images in their API
      1. …in reply to @tiefpunkt
        Some of these button legs were a bit bent, so it took a bit of time to get them all in there and seated properly. But finally, here we are.
        oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
    1. …in reply to @tiefpunkt
      The big pads on the buttons are easy to solder, even with my wonky battery soldering iron (my TS100 seems to have disappeared 😿)
      oh my god twitter doesn’t include alt text from images in their API
  1. …in reply to @tiefpunkt
    Now the instructions mention cleaning the board before putting in the battery. I'd like to clean it before even putting in the OLED display, not sure if the display module would like that. Instructions say use isopropanol to do the cleaning. Got that.
    1. …in reply to @tiefpunkt
      But I don't have a decent cloth 🤔 We had a discussion about cleaning PCBs a while back at @ttn_munich. Someone recommended an ultrasonic cleaning bath. Well, look what I found:
      oh my god twitter doesn’t include alt text from images in their API
      1. …in reply to @tiefpunkt
        So just a tiny tiny amount of isopropanol, so that it reaches the bottom of the PCB, but doesn't overflow the top. Power it up for half a minute, and ... uh, that's kinda nasty. But I guess it worked 💪
        oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
        1. …in reply to @tiefpunkt
          The greasy stuff came off nicely, but there seems to be some white residue left after drying it outside for a few minutes. Any ideas what that is?
          oh my god twitter doesn’t include alt text from images in their APIoh my god twitter doesn’t include alt text from images in their API
          1. …in reply to @tiefpunkt
            Final touches: LCD and battery, then: power on! And tada, it actually works on first try. Nice.
            oh my god twitter doesn’t include alt text from images in their API
            1. …in reply to @tiefpunkt
              The keyboard actually works nicely, I keep mixing up ENTER and SPACE, but apart from that. The BASIC on there seems to have some little issues still, any idea on this @Guki_0? I guess I'll have to take a closer look at some point...
              1. …in reply to @tiefpunkt
                Anyway, I like this little thing, and I want to play around with it a bit more. I'd like to write some alternative firmware to make this work as a plain serial terminal to hook up to another #Arduino. With a Null-Modem FTDI cable 😆
                1. …in reply to @tiefpunkt
                  Finally, if you want to get one as well, you can do so here: tindie.com/products/el9000/cobalt-3-a-pocket-computer-diy/