cuber18
Advanced Member level 4
can you help what transistor should i connect to a cathode row? and what resistors should i use? my led matrix row is connected with a 74ls154 IC w/c output is active low..
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you can use sk100 pnp transistor
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can you post circuit diagram
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row scanning or column scanning method ?
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wait a minute since you are using cathode row you should use 40 npn transistors for column