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Sightings 0.2.0

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@github-actions github-actions released this 07 Sep 16:50
· 14 commits to main since this release
v0.2.0
4eb2a4f

Added

  • DCA55-equivalent figures for transistors. After a saved BJT identify the app holds
    Vce at 2.5 V, servos the base current until Ic = 2.50 mA (the Peak DCA55's published test
    conditions) and reports hFE with leakage subtracted, plus Vbe at that point and at a forced
    base current. Shown under the DCA75 result, stored with the reading and available in bin
    statistics. Automatic (Settings switch) or on demand.
  • Reverse leakage with nA resolution for diodes (Ir) and for a transistor's
    collector–base junction (Icbo), at 5 V and 10 V, measured through the unit's 470 kΩ gate
    path so the current can never exceed ~25 µA. The DAC is servoed so the junction really
    sees the requested voltage; a leaky part reports the voltage actually reached.
  • Reverse leakage I‑V sweep on the Curves tab.
  • App icon on every platform.

Changed

  • The Curves tab offers only the sweeps that apply to the identified component, and
    switches to the first applicable sweep after each identify.
  • Diode sweeps take their anode/cathode from the identify result instead of a fixed default.
  • Readings written by an older decoder are re-decoded automatically when the database opens.

Fixed

  • JFET gfs and MOSFET gm were shown a thousand times too large (the unit reports mS).
  • Two BJT fields labeled as base currents are the collector test currents for the Vbe
    readings; relabeled.

Companion app for the Peak Atlas DCA75. All builds are free; see the EULA in the app.

macOS (Apple silicon and Intel): unzip and open Sightings.app. The build is not notarized, so on first launch macOS will refuse; open System Settings → Privacy & Security and click Open Anyway (older macOS: right-click the app → Open). No driver needed.

Linux (x86-64): extract, install the udev rule from the README inside, run ./workbench. Needs GTK 3 and libusb-1.0 from your distribution.

Android: download the APK on the phone and open it (allow installs from the browser once). Needs a USB OTG cable.

Full history: CHANGELOG.md · Help: Wiki

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