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Eggtimer Rocketry Rev A4a Assembly And User's Manual page 22

Wifi switch

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Loosen the screws on the terminal block screws (if you're using them) and connect your
battery "pigtail" to the leads marked IN. If you're not using the terminal blocks, solder your
battery pigtails to the pads marked IN. Make sure that the "+" lead (generally RED) goes to
the "+" terminal on the terminal block, and the "-" lead (generally BLACK) goes to the "-"
terminal. If you are not 100% sure of the colors and polarity of your battery pigtail, check
them with a digital voltmeter and your battery BEFORE you connect it. YOU WILL
DAMAGE THE WIFI MODULE IF YOU HOOK A LIPO BATTERY UP
BACKWARDS, SO TAKE YOUR TIME AND BE 100% SURE! Tighten the screws (if
you used the terminal block).
Connect your battery to the pigtail. The red LED marked PWR should blink three times, go
out for a second or two, then remain on... if it does, congratulations! You're done. Read on
for a detailed explanation of how to hook it up to your electronics and how to use it. If you're
a bit impatient and want the 10-second tutorial, jump to the Quick Reference Guide at the end
of this manual... if you get stuck, though, you just might end up reading the long version
anyway!
If it does not, immediately disconnect the battery and go to the troubleshooting section.
Chances are pretty good that you have a solder bridge or an incomplete joint, so the first thing
you need to do is to examine the board thoroughly with a magnifying glass. About 99% of all
the problems that we see are due to soldering issues.

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