Search found 1034 matches

by strud
Mon Aug 10, 2020 9:39 am
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

Hi OTT I could quite easily just close a file say after 10s and create another and keep going. This would be easy to accomplish between the 1s log interval, if that was much faster (say for high speed data logging) then not likely. Just looked into SPIFFS and says I can have 5 files open at a time, ...
by strud
Mon Aug 10, 2020 7:43 am
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

A weekend of bad weather here so I had some time to put towards the RocTrak firmware. Main advances were: - Implementation of SPIFFs (SPI Flash File system) meaning that a simple file management system is now available on board for storage, retrieval etc. Some details of this can be found here : htt...
by strud
Thu Aug 06, 2020 9:50 pm
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

Still waiting on the new boards, so in the mean time I've been working on new packet types for the APRS functionality. New packet types now available: - Position with time stamp + Altitude - Position with time stamp + Altitude + status message (including Power monitor values or voltage and current +...
by strud
Mon Aug 03, 2020 1:37 pm
Forum: Scratch Built
Topic: Vacuum tooling for composite construction
Replies: 15
Views: 793

Re: Vacuum tooling for composite construction

Hey Drew, sound good Wet sanded the fins last night, a little more to go maybe but pretty close now http://drive.google.com/uc?export=view&id=1Yzuhq_NE4nP0BM6IoPh1RZwchlZcWHwZ Contemplating the wet epoxy wipe process rather than too much more sanding into the carbon or painting, will just need a...
by strud
Mon Aug 03, 2020 6:51 am
Forum: Scratch Built
Topic: Vacuum tooling for composite construction
Replies: 15
Views: 793

Re: Vacuum tooling for composite construction

Yep paper towel/kitchen towel, seemed to work well.

I’m doing all the sanding wet to avoid any dust.
by strud
Sun Aug 02, 2020 6:23 pm
Forum: Scratch Built
Topic: Vacuum tooling for composite construction
Replies: 15
Views: 793

Re: Vacuum tooling for composite construction

Finally used my new vacuum port in anger over the weekend to help make 4 carbon over aircraft ply fins for my HPV4PoC vehicle. Still have final sanding etc to go but pretty happy how they turned on on my first vac-bag attempt. They are definitely very light and super stiff. Ply cores being beveled o...
by strud
Thu Jul 30, 2020 10:53 am
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

So other than some more tweaks to the APRS packet firmware, latest efforts have been on iterating the board to resolve some of the initial bugs and re-design required to deal with the quirks of the ESP32 IO, but more so to suit an alternative GPS module and a variant to use a better performing RF LP...
by strud
Thu Jul 30, 2020 8:00 am
Forum: Support & Recovery & Misc.
Topic: GSE Update
Replies: 13
Views: 3009

Re: GSE Update

So before doing anymore testing, I wanted to make some significant improvement on the noise floor of the DAQ electronics I have a part of the GSE. When looking for the board files etc I discovered that they were in a previous ECAD system format and infact very old hardware etc so I decided to take s...
by strud
Mon Jul 27, 2020 8:37 am
Forum: Electronics
Topic: DireWolf: an excellent soft modem/TNC for APRS
Replies: 0
Views: 209

DireWolf: an excellent soft modem/TNC for APRS

I've been playing around a fair bit of late testing my APRS packet radio system and came across this excellent soft modem/TNC called DireWolf This presentation covers it and the whole realm very well; https://microhams.blob.core.windows.net/content/2018/03/MHDC2018-WB2OSZ.pdf Github repo: https://gi...
by strud
Thu Jul 23, 2020 4:39 pm
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

A bit of a non-technical update: - Bit the bullet today and ordered a new toy, a Yaesu FT3Dr :D it's a bit like Xmas now waiting for this ! I note that it supports 9600 baud APRS, that will be fun to try and support from my new device, I have a feeling that using square wave modulation will not suff...
by strud
Tue Jul 21, 2020 8:54 pm
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

Forgot to mention the reasonably useful iOS app I was using as a 2nd soft modem/TNC to decode the packets from audio out of my HT speaker ie not wired in. The app is 'modestly' called 'APRSpro' and there is a free version that is quite useful. http://aprspro.com/v1/ Anyway, once I had my packets tun...
by strud
Tue Jul 21, 2020 4:39 pm
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

So I've spent the last little while working on the APRS code and getting this aspect of the project working reliably. I got put off into the weeds at one point by my SDR (RSP1) since it seems to have created so odd artifacts in the audio output I was then trying to decode using a soft modem such as ...
by strud
Sat Jul 11, 2020 3:14 pm
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

So now focusing on the Packet generation and tone output functionality. LOTS of stuff online in the HAM radio sites, but a few things that stood out as references & tools etc : [urlhttp://uz7.ho.ua/packetradio.htm][/url] Very nice and to the point software modem with useful packet decoding http:...
by strud
Wed Jul 08, 2020 1:58 pm
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

Hi OTT, Yes the intention is to have a root/index page that has a very high level 'good to go' or 'Don't press the button' level of resolution, ie big green or big red indicator with the combination logic looking at a list of metrics and thresholds to come up with the overall result. Will be changin...
by strud
Tue Jul 07, 2020 9:00 am
Forum: Electronics
Topic: Rocket tracker & monitoring thing
Replies: 26
Views: 1185

Re: Rocket tracker & monitoring thing

Have output channel continuity working now and updated Webpage to include this, along with reformatting using tables.

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