Description
In many applications such as model roadway running light effects are observed. This is a simple four-channel running light, which consists of 16 LED’s in a pair of four. The four groups of LED are named as A, B, C, D glows simultaneously one by one. The frequency of running effect can be changed by preset P1 shown in the circuit diagram. The controlling circuit is build around decade counter, whose four outputs are used here. The circuit automatically resets when IC1 reaches to fifth count. The clock and triggering circuit are designed around five monostable multivibrators in IC2.
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