Idea for launch detect
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Idea for launch detect
I am building a new 6l rocket and will be utilising a MSP430 launchpad and associated servos etc.
I have been thinking about a possible launch detect idea and am interested in people's thoughts.
I am planning to use a standard "push button" switch to start the timer circuit. What will press the switch you ask?
My idea is to mount the switch just below my 9v battery and have the battery mounted with some movement permitted so that on launch it will move down a few mm due to inertia and press the button.
Anyone done this? Anyone found it a disaster? Should I give it a go?
I have been thinking about a possible launch detect idea and am interested in people's thoughts.
I am planning to use a standard "push button" switch to start the timer circuit. What will press the switch you ask?
My idea is to mount the switch just below my 9v battery and have the battery mounted with some movement permitted so that on launch it will move down a few mm due to inertia and press the button.
Anyone done this? Anyone found it a disaster? Should I give it a go?
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Re: Idea for launch detect
I don't see any reason that it wouldn't work.
Give it a try and post your results.
Give it a try and post your results.
Lisa Walker,
Forum Administrator.
The Water Rocket Achievement World Record Association
Forum Administrator.
The Water Rocket Achievement World Record Association
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Re: Idea for launch detect
That's actually a clever use for the weight of the battery. Putting the otherwise dead weight to use is a great idea!Daz555 wrote:I am building a new 6l rocket and will be utilising a MSP430 launchpad and associated servos etc.
I have been thinking about a possible launch detect idea and am interested in people's thoughts.
I am planning to use a standard "push button" switch to start the timer circuit. What will press the switch you ask?
My idea is to mount the switch just below my 9v battery and have the battery mounted with some movement permitted so that on launch it will move down a few mm due to inertia and press the button.
Anyone done this? Anyone found it a disaster? Should I give it a go?
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Re: Idea for launch detect
Hi, Brilliant.
I am building a 9 Litre with the launchpad as well. I will use this idea. How about those little pcb mounted switches, ahh, where is that old dvd player...
Using 3.7V ex Blackberry phone battery.
Building a vero board equivalent to not send the programmer board into space ! Love the ideas on this site.
Regards
Mark
Pics to follow..
I am building a 9 Litre with the launchpad as well. I will use this idea. How about those little pcb mounted switches, ahh, where is that old dvd player...
Using 3.7V ex Blackberry phone battery.
Building a vero board equivalent to not send the programmer board into space ! Love the ideas on this site.
Regards
Mark
Pics to follow..
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Re: Idea for launch detect
I'm so busy at the moment with work and family in the last few weeks I have not had any time to work on rockets. I have bought a simple panel pushbutton switch and it looks like the spring is about right in that it holds a 9v battery comfortably but will certainly give enough during launch to allow it to depress fully.
I have all the parts I need now - including a new soldering iron.......now if only I could order spare time on ebay......
I have all the parts I need now - including a new soldering iron.......now if only I could order spare time on ebay......
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Re: Idea for launch detect
It is possible to make a lighter ServoChron without any circuit board at all!smubbly wrote:Hi, Brilliant.
I am building a 9 Litre with the launchpad as well. I will use this idea. How about those little pcb mounted switches, ahh, where is that old dvd player...
Using 3.7V ex Blackberry phone battery.
Building a vero board equivalent to not send the programmer board into space ! Love the ideas on this site.
Regards
Mark
Pics to follow..
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Re: Idea for launch detect
Did y'all post the details on how to do that somewhere and I'm just missing it? I have a bunch of extra 430 chips and would like to make a bunch of "add on" parachute modules for standard single bottle rockets.U.S. Water Rockets wrote: It is possible to make a lighter ServoChron without any circuit board at all!
Thanks,
Bugwubber
Bugwubber
Team S.P.E.W.
Team S.P.E.W.
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Re: Idea for launch detect
We had documented it informally and were preparing a new article describing it in detail, but with so many projects to work on we haven't had time to complete it. We should have something ready soon. You know how it is with so many things to do.bugwubber wrote:Did y'all post the details on how to do that somewhere and I'm just missing it? I have a bunch of extra 430 chips and would like to make a bunch of "add on" parachute modules for standard single bottle rockets.U.S. Water Rockets wrote: It is possible to make a lighter ServoChron without any circuit board at all!
Thanks,
Bugwubber
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Re: Idea for launch detect
Oh sure no problem, I just wanted to make sure I wasn't missing it somewhere. Thanks!U.S. Water Rockets wrote:We had documented it informally and were preparing a new article describing it in detail, but with so many projects to work on we haven't had time to complete it. We should have something ready soon. You know how it is with so many things to do.bugwubber wrote:Did y'all post the details on how to do that somewhere and I'm just missing it? I have a bunch of extra 430 chips and would like to make a bunch of "add on" parachute modules for standard single bottle rockets.U.S. Water Rockets wrote: It is possible to make a lighter ServoChron without any circuit board at all!
Thanks,
Bugwubber
Bugwubber
Team S.P.E.W.
Team S.P.E.W.
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Re: Idea for launch detect
So many projects, so little time.
Team U.S. Water Rockets
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Opportunity is missed by most people because it is dressed in overalls and looks like work. --Thomas Edison