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Why Is SkySafari 6 Plus On Android Crashing When Connected To A Sky-Watcher 250P Dobson Using A DIY BlueTooth Module? (Answer: DIY Bluetooth Modules Are Not An Officially Supported Configuration)

Miroslav Pienčak

October 27, 2020 20:04

Answered

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Sky Safari 6 Plus for Android is crashing very often when connected to my scope. It crashes few times during each observation session.
I use bluetooth connection to Sky-Watcher 250P Dobson.
If you want, I can help with diagnostics somehow.

1. App and version number: SkySafari 6 Plus, 6.7.2.0
2. OS version number: Android 10 
3. Scope make and model: Sky-Watcher 250P FlexTube Dobson
4. Hand controller firmware version number: 4.39.04
5. WiFi hardware (i.e. SkyFi 3, SkyBT): Bluetooth module
6. Confirm WiFi/Bluetooth network connection via mobile device: BT connection working ok
7. Serial cables: none
8. SkySafari Scope Type setting: SkyWatcher SynScan via BT, AltAz Goto mount
9. Alignment type process via hand controller: Brightest star + 2nd star
10. Screenshots of error messages: none, app just crashes and disappears 

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4 comments

• 0
  
  Keiron Smith October 28, 2020 16:35

  1. WiFi hardware (i.e. SkyFi 3, SkyBT): which bluetooth module specifically?
  2. Serial cable: how are you connecting from the bluetooth module?
  3. What is the last action in SkySafari before the crash?
• 0
  
  Miroslav Pienčak October 28, 2020 16:49

  1+2: The module is a common HC-05 module soldered directly to the internals of the hand controller based on info from https://astro.marxram.de/handcontroller-upgrade-bible/

  3: no action, the app just dies and disappears. If you mean a user action, it seems random. I may try to figure out some relation and post the update later.

• 0
  
  Keiron Smith October 30, 2020 19:20

  Hi Miroslav, 

  Sorry, this is not an officially supported configuration.

  If possible, please test using our SkyBT or SkyFi 3, and confirm the crashing is still an issue.  

  Thanks!

• 0
  
  Keiron Smith October 30, 2020 19:23

  Hi Miroslav, 

  In SkySafari Settings > Scope Setup > Enable Save Log File

  Run the app, connect, crash, get the log file (see Help), and attach here.

  Thanks!