Attention-catching elements prove valuable in warnings, raising awareness of danger, and in exhibitions, providing visual delight. Numerous electronic circuits utilize blinkers, winkers, and LED flashers for these purposes.
This mosaic display of LEDs, reminiscent of a kaleidoscope, exudes charm and fascination. As this is a straightforward detection system, you have the freedom to construct and present it any way you like for amusement. Electronics Kaleidoscope’s prototype is shown in Fig. 1.
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| Parts List | |
| Semiconductors: | |
| IC1 | -555 timer |
| IC2 | -4020 14-bit binary counter/ divider |
| LED1-LED9 | -9 different coloured 5mm LEDs with holders |
| Resistors (all 1/4-watt, ±5% carbon), unless stated otherwise: | |
| R1 | -33-kilo-ohm |
| R2-R10 | -1-kilo-ohm |
| Capacitors: | |
| C1 | -10µF, 25V electrolytic |
| C2 | -0.1µF polyester |
| Miscellaneous: | |
| -Thin enamelled copper wire | |
| -8-pin IC socket (optional) | |
| -16-pin IC socket (optional) | |
| -Small flat plastic box | |
| -Flexible wire | |
| -9V DC adaptor | |
Electronics Kaleidoscope Circuit
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