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Old 10-03-2022, 03:17 PM
Bob Austin Bob Austin is offline
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Join Date: Aug 2018
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Default Flight Logs and the Arduino Launch Control Software Updated

Just a quick note to let you know that the first BETA release of the Flight Logs Database has been released. Primarily a bug release version with a number of issues corrected. More info is on our blog at https://rocketryjournal.wordpress.c...-now-available/. The software is available through our SourceForge repository at https://sourceforge.net/projects/flight-log/.


The software for an Arduino-based Launch Control System has also been updated and is available through SourceForge at https://sourceforge.net/projects/ar...control-system/. We have been running a series of posts on the design and building of the system. The first post in the series can be found at https://rocketryjournal.wordpress.c...control-system/
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Old 10-05-2022, 07:39 AM
PaulK PaulK is offline
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Join Date: Nov 2005
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That's pretty slick. Built-in battery, or remote with relay? Might want to have an option to reduce 10s countdown to 5s, which is the NAR requirement, and commonly used.

Not that I'd build anything like this myself, too much firmware & EE at my day job, but a cool design in any case!
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Old 10-05-2022, 02:51 PM
Bob Austin Bob Austin is offline
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Thanks Paul. There are actually two sets of batteries - one for the Arduino and one for the launch pad - all contained in the box. The Arduino flips a relay at launch to allow power to flow to the pad. Below is a Fritzing graphic showing the whole layout. Also a picture of the battery compartment in the box

This is actually the first time I have ever tried anything like this. I knew next to nothing about electronics, kept hearing about the Arduino's and got a starter kit last year for my birthday. Been having a ball ever since. I figured others who may be hesitant to try creating some electronic circuits for their rockets might feel more at ease seeing how this was done - by a Noob! It's also why I went into a bit more detail explaining things in the blog posts.

The coding makes the Arduino easy to use. The countdown can easily be changed to anything you want, as it is simply just a loop.

Thanks again for the kind words.

Bob
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