Search found 996 matches

by Daniel Wee
Fri 03 Dec 03 2010 6:26 pm
Forum: Space Balloon Project
Topic: GPS Flight telemetry
Replies: 18
Views: 52770

Re: GPS Flight telemetry

I used something I purchased locally. Can't remember the brand now but I suspect almost any external antenna would perform very well.

Daniel
by Daniel Wee
Thu 02 Dec 02 2010 7:07 pm
Forum: Space Balloon Project
Topic: GPS Flight telemetry
Replies: 18
Views: 52770

Re: GPS Flight telemetry

If the 638 is pin-compatible with the 636, you could just replace the chip and save yourself developing a new-board. Fingers-crossed.

Not sure but I don't think John has a full grasp of the project as yet so he may be just saying.

Daniel
by Daniel Wee
Thu 02 Dec 02 2010 5:59 pm
Forum: Support
Topic: DragonOSD+ firmware upgrading
Replies: 140
Views: 289462

Version 15.9

Version 15.9

1. Scale control surface input according to airspeed if available (experimental, need feedback)
2. Fixed throttle channel initialization issues

Daniel
by Daniel Wee
Thu 02 Dec 02 2010 5:55 pm
Forum: Space Balloon Project
Topic: GPS Flight telemetry
Replies: 18
Views: 52770

Re: GPS Flight telemetry

I have tested both modules and the SFE one without antenna works fantastically when used with an active antenna. The SUP500F, unfortunately, has dismal performance (cannot acquire at all.) Nate at SFE has posted that they no longer encourage people to use the SUP500F for the myriad of issues related...
by Daniel Wee
Sat 27 Nov 27 2010 5:34 pm
Forum: Support
Topic: DragonOSD+ firmware upgrading
Replies: 140
Views: 289462

Version 15.8

Version 15.8

1. Fixed some data formatting issues

Daniel
by Daniel Wee
Sat 27 Nov 27 2010 2:31 pm
Forum: Support
Topic: DragonOSD+ firmware upgrading
Replies: 140
Views: 289462

Version 15.7

Version 15.7

1. Corrected another minor bug in serial position reporting function

Daniel
by Daniel Wee
Fri 26 Nov 26 2010 11:44 pm
Forum: Support
Topic: DragonOSD+ board connections
Replies: 14
Views: 69425

Air-speed sensor

Air-speed sensor The air-speed sensor is a very specific part, the Honeywell HSCMRNN001PG2A3. Other analog types such as available from Motorola (MPXnnnnn) won't work. Only this exact part will work. You can get the part from:- http://sg.farnell.com/honeywell-s-c/hscmrnn001pg2a3/pressure-sensor/dp/...
by Daniel Wee
Fri 26 Nov 26 2010 11:06 pm
Forum: Support
Topic: DragonOSD+ firmware upgrading
Replies: 140
Views: 289462

Version 15.6

Version 15.6

1. Fixed bug in serial position reporting command
2. Added mAh/km to assist display
3. Fixed bug in display routine (black line on the right)
4. Added OSD mode 4 (SU-27)

Daniel
by Daniel Wee
Mon 22 Nov 22 2010 12:11 am
Forum: Support
Topic: DragonOSD+ configuration
Replies: 12
Views: 47957

Re: DragonOSD+ configuration

Yves, I personally don't think the dBm conversion is going to be very useful at all without some precise calibration. In this respect, the simple percentage display is likely to be the more useful one. The OSD reads various RSSI voltages from different receivers and unless you know how each receiver...
by Daniel Wee
Sat 13 Nov 13 2010 9:59 pm
Forum: Support
Topic: DragonOSD+ firmware upgrading
Replies: 140
Views: 289462

Version 15.5

Version 15.5

1. Modified PWM initialization, now throttle channel is initialized to PPM value
2. Added initialization for PORTC
3. Non-throttle initialization to neutral position before PPM value

Daniel