Timer IC 555 Calculator Pro icon

Timer IC 555 Calculator Pro

v2.2.0 · 1.4 MB · code 10

0d9267ed365526997e984a476f1503e9 TRUSTED

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File information

UpdatedMar 8, 2015
PublishedMar 8, 2015
Packagecom.peterhohsy.timer555calculatorpro
Versionv2.2.0 (10)
Size1.4 MB
MD50d9267ed365526997e984a476f1503e9
Min SDK10
Malware scanTRUSTED
Signature SHA141:02:A5:4E:EF:CC:4A:31:97:6A:CF:74:8A:ED:A1:D6:58:A7:02:DC
SignerCN=Peter Ho
Total downloads865
This version865
DeveloperPeter Ho
Age ratingLow Maturity

What's new in v2.2.0

2.2.0
- Fix minor bugs
2.1.0
- Application circuits are added
1.2.0
- Fix minor bugs
1.0.5
- Manufacturers are added
1.0.4
- Uploading CSV file to Dropbox is added

Security scan

TRUSTED
  • Developer signature verified 2015-03-08
  • Scanned for malware 2020-09-23 08:20:58
  • Signature SHA1 41:02:A5:4E:EF:CC:4A:31:97:6A:CF:74:8A:ED:A1:D6:58:A7:02:DC
  • File MD5 0d9267ed365526997e984a476f1503e9

How to install Timer IC 555 Calculator Pro v2.2.0 on Android API 10+

Takes about 2 minutes. You'll need roughly 1.4 MB of free storage.

  1. Grab com.peterhohsy.timer555calculatorpro_10.apk — hit the Download button above (1.4 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
  2. Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
  3. (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 0d9267ed36552699…. Any difference means the file is corrupted or tampered — delete and re-download.
  4. Open the APK — tap the download notification, or find com.peterhohsy.timer555calculatorpro_10.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
  5. Check the signer — the install screen will name the publisher. For this build it should read CN=Peter Ho. If it doesn't match, cancel — you have the wrong file.
  6. Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
  7. Done — open Timer IC 555 Calculator Pro — tap Open on the install screen, or find the Timer IC 555 Calculator Pro icon in your app drawer.
Common install errors for Timer IC 555 Calculator Pro
  • "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
  • "Parse error" — the APK is for a newer Android than yours. This version needs Android API 10 or later. Pick an older build from the versions list below.
  • "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.

All versions (1)

v2.2.0 LATEST CURRENT Mar 8, 2015 1.4 MB TRUSTED

All versions page