Model rocket launch controller

Posted on Sep 4, 2012

Eight LED`s are used to indicate the pad currently selected. These LED`s are connected to a decade counter, which sequences the LED`s when it receives a clock pulse.Only one LED can be lit at a time from the decade counter, so although this circuit contains many LED`s only a small drain us placed on the battery. The clock pulse for the decade counter is generated by a 555 timer.

Model rocket launch controller
Click here to download the full size of the above Circuit.

The circuit diagarm for the pad unit is very simple. Six input lines receive the signals from the main controller. I don`t think I need to explain this part of the circuit in detail, although I will mention a few things. Firstly make sure that the re

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