This be LED display circuit , that interesting. By it will wink to alternate between LED the red and LED the green. This circuit can work with IC LM324, by part of IC op-amp 4 pcs. number LM324 cheap build origin waves square circuit comes out 1 cycle per every second. For LED one by [...]
This the circuit light led flashing ,with show of 10 LED. By use integrated number circuit CD4017 perform be Decade Counter/Divider with 10 Decoded Outputs. Which it is integrated digital circuit CMOS then use the power supply about 9VDC. For a signal input continue the circuit can produce general frequency may use IC NE555 all [...]
If we wasp one size miniature serial loudspeaker (8 ohm speaker) suits. Flashing LED number FRL – 4403 which be mourn shine that can can blink. By must not use other equipment help. unless , power supply gives with it only. Already will hear the sound goes out a loudspeaker in the rhythm that it [...]
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