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High Voltage Launch Controller

Hardware

By @percentchunk376

  • 1 Devlogs
  • 1 Total hours

A NAR-compliant rocket launch controller with multiple safety controls and a large red launch button for reliable motor ignition.
Ship #1 Changes requested

@percentchunk376 on High Voltage Launch Controller

I made the first wiring plan and schematic for my high voltage launch controller. It uses a key switch, flip cover switch, momentary safety button, continuity led, buzzer, and large red launch button.

The hardest part was figuring out the correct wiring order. I had to make sure the launch output only works after all the safety switches are active, and the continuity LED can still safely test the igniter connection. I am proud that the schematic now has a clear safety path Each part has a cool job, and gives a really good launch.

To test it , I advise following my video demo, because it shows the safety features in action, and gives a pretty good idea on how it works.

  • 1 devlog
  • 1h
Video of Project → See source code →
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@percentchunk376 on High Voltage Launch Controller

59m 59s logged

For my project, I am building a high voltage model rocket launch controller designed to be safer, more intentional and way cooler then the basic ones sold for $50 dollars. The goal is to make a controller that uses multiple safety steps before ignition can happen, including a key switch, flip- cover, continuity led, warning buzzer, momentary safety button, and a large red launch button. The schematic is built around a safety path. The key switch acts as the first lockout, making nobody random can use it. The wiring was most important due to needing to prove continuity by sending a small enough current not to set off the ignitor. after that, it was a series of setting roadblocks for the current, and allowing the full power to go through on all safeties were off. In overview, most controllers send about 2 amps due to that being only what is needed to set off the ignitor. Mine sends 6 amps practically exploding the ignitor getting a better rocket launch.

@percentchunk376

For my project, I am building a high voltage model rocket launch controller designed to be safer, more intentional and way cooler then the basic ones sold for $50 dollars. The goal is to make a controller that uses multiple safety steps before ignition can happen, including a key switch, flip- cover, continuity led, warning buzzer, momentary safety button, and a large red launch button. The schematic is built around a safety path. The key switch acts as the first lockout, making nobody random can use it. The wiring was most important due to needing to prove continuity by sending a small enough current not to set off the ignitor. after that, it was a series of setting roadblocks for the current, and allowing the full power to go through on all safeties were off. In overview, most controllers send about 2 amps due to that being only what is needed to set off the ignitor. Mine sends 6 amps practically exploding the ignitor getting a better rocket launch.

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