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Eggtimer Rocketry Rev A4a Assembly And User's Manual page 28

Wifi switch

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The WiFi Switch page shows you several things:
• The ON/OFF status of the switch's output
• The Validation Code that you need to use to turn it off/off
• The status of the two continuity channels (CHA/CHB)
• The battery voltage
There is also a text box to enter the validation code to toggle the output, the validation code
that you need to use is displayed immediately below the box.
Note that if you just sit and admire the screen for long enough (60 seconds, to be exact) it will
refresh on its own, and you'll get a new validation code. This also refreshes the state of the
continuity channels, so if for some reason one of the channels changed status you'll know.
You can also force a refresh by clicking on your browser's refresh icon, or by simply clicking
the Submit button below the validation code text box.
Note that we've put an "ON" status LED directly on the WiFi Switch PC board, you probably
won't care much about it when it's locked up in your AV bay but it's very handy when you're
testing because it shows you the actual state of your switch... you can test it before installing in
your rocket.
When you first power on the WiFi Switch, the output is turned OFF. To turn it on, click in the
validation code text box and enter the 4-digit validation code, then click on the Submit button.
The "ON" LED should come on, and the WiFi Switch's web page should show that the Output
status is now ON (red highlighted box). If you make a mistake or for some other reason it
doesn't "take", simply enter the next validation code and click on Submit. The ON/OFF status
is the actual status of the output, so you can be confident that whatever status is being reported
is what's really happening.
The two continuity channels, CHA and CHB, are driven by the altimeter's power, so you'll see
them turn ON (or not...) immediately after you power on the altimeter. If one of the channels
is OFF and you're expecting it to be ON (i.e., you have an ematch connected to one of the
outputs) that tells you that either you have a bad ematch or a bad connection... you should turn
everything OFF and check your wiring before you fly. Of course, your altimeter will probably
beep out some kind of status information to tell you that, but it's nice to have a visual
indication.
To turn off the WiFi Switch, click in the validation code text box, enter the 4-digit validation
code, then click the Submit button. The "ON" LED will go out, and the status will change to
"OFF" (grey highlighted box). The battery voltage will continue to be displayed, however the
continuity status will turn "OFF" along with the power since there's no power to drive them
from the altimeter anymore.
Pretty easy, huh?

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