Kastalia Knowledge Management System · Glasperlenspiel template · knot 893

Hardware

🌐 public · created AE530810 (10.08.2023) · by DDH · open in the standard editor view · 📽 open as presentation

Ancestors (1 superordinated path)

Descendants (at least 6 branches originate here)

  • Hardware
    • is_parent Input ·
      AUDIO :: Respeaker 2-mic array with additional button Grove - Gesture is PAJ7620U2 (I2C) ssh
    • is_parent Processing Unit(s) ·
      Raspberry Pi Zero v1
    • is_parent Output
      DISPLAY :: e-ink (Waveshare 7 inch with IT8951 controller has <1s full refresh rate, also supports partial refresh) SOUND :: 8 OHM / 8W speaker Visaton K50 c
    • is_parent Energy-related ·
      tricky situation: USB charging 5V, LiPo batterias 3.7V, e-ink controller needs 5V, solar panel gives 7V diverse circuits for voltage increase (booster, step-up)