Flight Computer

[gelecek2]

Hello,
We will participate in a rocket competition. We will ascend to 5000 feet altitude. We want to use a commercial flight computer in our rocket. We need to communicate with the rocket and receive various data (altitude pressure-temperature etc.). With this system, we also need to activate the rocket's recovery systems. What would you recommend to us? What can we use? Where can we buy?

 

[FredA]

Remote activation of recovery is not a good idea.
What competition requires this?

 

[waltr]

Have you done a search in this Forum and read the many, many threads on rocket electronics??
There is lots and lots and lots of info already here for you to read...

 

[gelecek2]

Remote activation of recovery is not a good idea.
What competition requires this?

I was misunderstood. We will not do the recovery remotely. Data such as altitude, pressure, temperature and most importantly location will come from the rocket to the ground station. We will find the rocket with the incoming location information

 

[gelecek2]

Have you done a search in this Forum and read the many, many threads on rocket electronics??
There is lots and lots and lots of info already here for you to read...

Yes, I did a research. There may be other threads that I missed. But I couldn't find exactly what I was looking for. I was not sure if the flight computers mentioned could meet our needs. That's why I wanted to ask again.

 

[samb]

SystemsGO ?

https://www.systemsgo.org/events/
https://www.systemsgo.org/program/

 

[cerving]

Eggtimer Rocketry altimeters can send out real-time ground telemetry using the Eggtimer Telemetry System. See http://eggtimerrocketry.com/eggtimer-telemetry-faqs/

 

[gelecek2]

SystemsGO ?

https://www.systemsgo.org/events/
https://www.systemsgo.org/program/

No. We will participate in the rocket competition in Turkey. https://www.teknofest.org/en/competitions/competition/31 The name of the competition is Teknofest.

 

[Grant_Edwards]

Hello,
We will participate in a rocket competition. We will ascend to 5000 feet altitude. We want to use a commercial flight computer in our rocket. We need to communicate with the rocket and receive various data (altitude pressure-temperature etc.).

Are you sure you need live real-time telemetry during the flight? I believe it's a lot more common (and a lot cheaper and simpler) to use a recording altimeter/computer and download the flight data from the device later using bluetooth, Wifi, USB, etc.

Transmitting GPS location info to aid in finding the rocket on the ground after the flight is also common, but that doesn't necessarily imply real-time remote telemetry during the flight. GPS location transmission may indeed be done by a completely separate widget from the the flight computer that records altitude, temperature, acceleration and controls recovery deployment events.

Depending on the size/cost of your rocket, you probably want to consider a redundant backup flight computer for deployment purposes.

 

[gelecek2]

Are you sure you need live real-time telemetry during the flight? I believe it's a lot more common (and a lot cheaper and simpler) to use a recording altimeter/computer and download the flight data from the device later using bluetooth, Wifi, USB, etc.

Transmitting GPS location info to aid in finding the rocket on the ground after the flight is also common, but that doesn't necessarily imply real-time remote telemetry during the flight. GPS location transmission may indeed be done by a completely separate widget from the the flight computer that records altitude, temperature, acceleration and controls recovery deployment events.

Depending on the size/cost of your rocket, you probably want to consider a redundant backup flight computer for deployment purposes.

Yes we need live telemetry information. The method you mentioned is definitely better and cheaper. But we need to send data as part of the competition. How exactly do you think we can do something? Do you have any suggestions?

 

[0011001100]

Aim Xtra can do live data and deployment:
http://entacore.com/electronics/aimxtra

 

[Grant_Edwards]

Yes we need live telemetry information. The method you mentioned is definitely better and cheaper. But we need to send data as part of the competition. How exactly do you think we can do something? Do you have any suggestions?

Have you looked at the altimeter comparison guide?

There are columns indicating which ones support telemetry and various other features.

There's a link to that guide in the discussion called "Altimeters: Comparison guide" that's pinned at the top of this forum.

Look through that comparison guide, then go to the web pages for the various products that appear to meet your requirements and start reading.

--
Grant

 

[justforfun]

I hadn't seen that spreadsheet, thanks.

I don't see TelemetryPro® Kate-3 system on that list.

Am I missing something?

Roy

 

[Grant_Edwards]

I hadn't seen that spreadsheet, thanks.

I don't see TelemetryPro® Kate-3 system on that list.

Am I missing something?

There may be a couple (or more) different versions of that spreadsheet floating around. IIRC, there was an updated one that was attached to a posting from late last year, and somewhere in that thread there's also a link to a web page that has the table on it. I don't know which one is more recent. After looking at them last summer I decided I wanted a FlightSketch mini, but they were out of stock and emails to FlightSketch went unanswered, so I sort of gave up on the whole altimeter thing and bought an astrocam instead.

 

[cerving]

Another thing you have to look at with GPS and telemetry units since you're in Turkey is if the vendor supplies either 70cm (amateur radio) units or 868 MHz EU license-free units. The 900 MHz license-free band commonly used in North America is not legal for use in the EU. Check with the vendor before your order.

 

[gelecek2]

Have you looked at the altimeter comparison guide?

There are columns indicating which ones support telemetry and various other features.

There's a link to that guide in the discussion called "Altimeters: Comparison guide" that's pinned at the top of this forum.

Look through that comparison guide, then go to the web pages for the various products that appear to meet your requirements and start reading.

--
Grant

Thank you. Let me check the comparison guide you mentioned.

 

[gelecek2]

Türkiye'de olduğunuz için GPS ve telemetri birimleri ile bakmanız gereken bir diğer şey, satıcının 70cm (amatör radyo) birimleri mi yoksa 868 MHz AB lisanssız birimleri mi tedarik ettiğidir. Kuzey Amerika'da yaygın olarak kullanılan 900 MHz lisanssız bandın AB'de kullanımı yasal değildir. Siparişinizden önce satıcıyla görüşün.
[/ALINTI YAPMAK]
Evet kesinlikle. Dediğiniz duruma dikkat etmemiz gerekiyor

 

[g.pitts]

Translated: "Yes, definitely. We need to pay attention to what you said. "