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Site description
Social /dev/LUG/social
Admin email
devlug@devlug.de
Admin account
@stefan@devlug.de

Search results for tag #diy

2 ★ 2 ↺

Stefan »
@stefan@devlug.de

Fragen an die Experten.

Kann ich zum verlöten von einem Koaxialstecker (PL-irgendwas) Zinn nehmen?

Gibt es da Unterschiede? Ich habe hier "Stangenlötzinn Zinkblech - zum Weichlöten von Zinkblecken - nur mit Lötwasser."

Hört sich nicht nach dem richtigen an. Oder spielt das hier keine Rolle?


    Jonas Schäfer »
    @jssfr@zombofant.net

    Then I wondered: Can you actually reprogram a character while it is being displayed? Like you may expect in such an old chip, the does *not* latch the customized character anywhere. Instead, every time it scans out the characters to the LCD, it reads the bitmap from RAM again.

    That means that if one of the customized characters is in use, it updates immediately on the display when changing it via the parallel interface.

    I don't think anyone has ever these displays to show a 40-band live spectrogram of the music playing on their laptop, but I did now.

    3/3

    Alt...Vertical video of display. The display is old-fashioned, with twenty by four cells of 5x8 dark pixels against a transflective green-ish background. In the top left (in the video, it's the bottom left due to being vertical) corner of the display, there are eight cells which show what looks like an audio spectrogram. Each cell has five bars which each indicates the level of a different band of audio frequencies. The display is mounted in a dark brown bezel on a green printed copper board. At the top of the board, 16 wires are soldered which go out of frame. Each corner has a gold-plated screw hole.

      Jonas Schäfer »
      @jssfr@zombofant.net

      Those of you who tinker with projects might know these types of character-based liquid crystal displays.

      This one features 20 characters in four rows. Each cell has 5x8 pixels. The controller has a baked-in font with a (very nonstandard) 8-bit codepage. It can be used to display text, such as "Hello Fediversians!".

      1/3

      Photograph of display showing text. It reads "Hello Fediversians!". The display is old-fashioned, with each letter being in a cell of 5x8 dark pixels against a transflective green-ish background. The display is mounted in a dark brown bezel on a green printed copper board. At the top of the board, 16 wires are soldered which go out of frame. Each corner has a gold-plated screw hole.

      Alt...Photograph of display showing text. It reads "Hello Fediversians!". The display is old-fashioned, with each letter being in a cell of 5x8 dark pixels against a transflective green-ish background. The display is mounted in a dark brown bezel on a green printed copper board. At the top of the board, 16 wires are soldered which go out of frame. Each corner has a gold-plated screw hole.