Light effect “Heart – running fire” K203.1 Kit
€0.00
A device made up of 20 light-emitting diodes, arranged in the shape of a heart, can be used to decorate the family and store windows. The device will serve as a great beginner’s guide for teaching you and your child the basics of electronics. The simplicity of the scheme, the ease of folding and the clarity of the result make it easier to worry about. The result of the construction of this constructor is an effective light-emitting “heart” with the effect of a fire that can burn.
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Description
Specifications
● Live voltage …………………………… 9 – 12V;
● Strum life …………………………….. < 150mA;
● Overall dimensions of the board ……………. 60x60mm
Description of the operation of the electrical circuit
The device consists of a direct-current pulse generator, collected on the U1 microcircuit, associated with the U2 register, and 20 light-emitting diodes, placed around the heart. Collecting generator on logical elements U1.1, U1.2, U1.3 and an hour trigger, which sets C1-R1. From the output of the pulse generator, it goes to the input of microcircuit U2, which is the last active register. With the skin impulse that comes, a high logical level will be consistently established at the outputs of the register Q0-Q7, starting from Q0, and collapsing to QS. LEDs D5, D2-D6, D3-D7, D4-D8, D17-D13-D9-D20, D18-D10-D14-D21, D11-D15, D12-D16-D19 will be sequentially lit in this manner. If the high level signal is within reach of QS, the inverter U1.4 inverts the signal, it is applied to the outputs D of the U2 microcircuits, and now, with a skin pulse, low level signals will be sequentially installed at the outputs of the U2 microcircuits And the LEDs will go out in the same sequence.
WARNING:
When folded, it is necessary to pay attention to the polarity of capacitors, LEDs and the pinout of transistors. A correctly chosen scheme does not fail and begins to work immediately
Quick User Guide 
Additional information
| Weight | 0.3 kg |
|---|
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