#11
|
||||
|
||||
Remember that the Eggtimer requires you to enter a unique...
...four digit code each time it's activated. I would argue that this a safer than a simple "rod" key, but others may disagree. There is also a unique password for each switch, so no chance of interference between devices. You also get continuity and battery voltage for free.
__________________
Let us create vessels and sails adapted to the heavenly ether, and there will be those who will not shrink from even that vast expanse. - Kepler to Galileo in 1610 NAR 86500 Level 2 |
#12
|
||||
|
||||
Quote:
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#13
|
||||
|
||||
Quote:
Umm, no. None of the wireless systems I used produced any continuity. The newest one, the fireworks system I got from ebay, does have an LED light up for each output that is "fired". But no sound. The continuity and buzzer stuff that I did mention in the thread I linked to, made use of a homemade continuity/arming box for each of the two earlier systems I used (and for a long-wire relay system before those). And one of those features was to have a buzzer ("bzzzzzt" type, not piezo beeper) to sound off when fired. For two reasons. One, to confirm that the system was firing, so if I heard the "bzzzzzt" but no ignition, I knew it was a misfire, not a relay/wireless problem. But also, as a WARNING, that if I heard the buzzer going off before hooking up the clips, that the relay was hung up (or wireless system firing by accident). A big safety feature. I remember a launch where two totally different relay systems accidentally fired, one I think was hung up mechanically, the other used a too-sensitive sensor in place of a relay, that moisture from rain screwed up (Ironically it was an Impulse Aerospace "Veri-Fire" system!). So two times at that launch on different systems, someone hooked up clips and the rocket took off! So when I later made a relay system, I made sure to have a warning buzzer to sound when firing, and highly recommend doing so, for relays, at least. Back to the fireworks wireless system, a buzzer ("bzzzzzt") could be wired in parallel with the micro-clips to indicate the system is firing. An easy thing to add. Doing continuity, more complicated.
__________________
Contest flying, Sport flying, it's all good..... NAR# 18723 NAR.org GeorgesRockets.com Georges'CancerGoFundMe: https://www.gofundme.com/f/help-geo...ay-fight-cancer Last edited by georgegassaway : 10-09-2017 at 12:05 AM. |
#14
|
||||
|
||||
Quote:
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
Thread Tools | Search this Thread |
Display Modes | |
|
|