I am less than satisfied with my current launch controller and decided to buy/build a replacement. After searching the internet, I did not find a controller that did everything I want it to do. I found a lot of DIY controllers and was inspired to try to build my own. I stole a most of these ideas and circuits from other people and modified everything to meet my own wish list for a control system.
1. Launch up to four rockets either one at a time, or all at the same time, or any combination.
2. Allow multiple engines (clusters) to be started at once in the same rocket.
3. Use a relay with the battery at the launchpad.
4. Use an inexpensive cable for distances of 100 feet for safety.
5. Lots of lights and buzzers for the fun factor.
6. Keyed master power switch.
7. Batter voltage indicator.
What I was going for was something like this:
1. When the keyed master switch is turned, the voltmeter comes on and a "System Armed" LED lights up.
2. If any one of the four circuits is connected to an ignitor or the "Fault Test Light", A continuity LED comes on for each pad connected.
3. The Pad select switches will be guarded toggle switches. When one is lifted to arm a pad, the "Pad Select" LED will light and a piezo buzzed will sound.
4. Finally after an audible countdown, the launch button is pressed to light off any selected pad ignitors.
I attached my two schematics and a couple images that show my inspiration for this project. I like the look and layout of the yellow box, but I want to four pad capability of the relay box in the pictures.
Does the schematic pictured seem correct? Is there any issues with the wiring plan? Any better way to do this? I will take all the criticism you can throw my way.
Thanks,
CJ
1. Launch up to four rockets either one at a time, or all at the same time, or any combination.
2. Allow multiple engines (clusters) to be started at once in the same rocket.
3. Use a relay with the battery at the launchpad.
4. Use an inexpensive cable for distances of 100 feet for safety.
5. Lots of lights and buzzers for the fun factor.
6. Keyed master power switch.
7. Batter voltage indicator.
What I was going for was something like this:
1. When the keyed master switch is turned, the voltmeter comes on and a "System Armed" LED lights up.
2. If any one of the four circuits is connected to an ignitor or the "Fault Test Light", A continuity LED comes on for each pad connected.
3. The Pad select switches will be guarded toggle switches. When one is lifted to arm a pad, the "Pad Select" LED will light and a piezo buzzed will sound.
4. Finally after an audible countdown, the launch button is pressed to light off any selected pad ignitors.
I attached my two schematics and a couple images that show my inspiration for this project. I like the look and layout of the yellow box, but I want to four pad capability of the relay box in the pictures.
Does the schematic pictured seem correct? Is there any issues with the wiring plan? Any better way to do this? I will take all the criticism you can throw my way.
Thanks,
CJ
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