Updated: 16 Apr 2018

FAQ - Frequently Asked Questions

- Do i need a TeleBT v4 ground station receiver?

The TeleBT v4 introduced an upgraded Bluetooth radio supporting the Bluetooth LE (Low Energy) protocol which is what allows our apple devices to talk to the TeleBT.  If you have an earlier TeleBT you don't have the Bluetooth LE support which then doesn't work with our devices.

 

- How do i tell if i have a TeleBT v4?

There are two choices.  One is to plug into it over USB and see what the software says it is (or run a terminal program, connect to the device, and use the 'v' command to see the product and firmware version info). The second is that if you know the serial number, the first TeleBT v4 unit was s/n 3686.  Any TeleBT with lower serial numbers won't work with iOS.

 

- Why am I not hearing new my new Flight Computer (no battery voltage is showing in AltosUI)

The flight computers can power up in Flight/Pad mode or in Idle mode.  If it is powered up in Idle mode you won't get any packets from it over the radio. (it will only support IDLE mode communications.)  However, if you power it off then orient the device as if it were in the rocket ready for launch then power it on it will enter flight/pad mode and will be transmitting packets. Once it is running in this mode it can be carefully laid down again and it will stay in this mode.

 

NOTE: Please pay attention to "Appendix B. Handling Precautions" in the "Owner's Manual for Altus Metrum Rocketry Electronics" when handling your flight computers.

 

- How do i copy my .telem files to my PC?

AltosUI exposes the files it creates to iTunes via file sharing.  Connect your iPhone, iPad to your PC/Mac, start Apple iTunes Application and select your device. Then (1) locate the "File Sharing" section and then scroll to and select the AltosIUI application by tapping on it's icon, (3) Look for the "Telemetry" folder icon in the "AltosUI Documents" panel. Click on the folder icon to select it., (4) click on the [Save] button to write this folder and its' contents info a folder on your PC.

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