Home >JH Products>Educational Kits>

Browse history

Description

Kit Parameters:
Supply voltage:6V
Board size:41*19mm

Function Description:
This circuit is a multi harmonic oscillator composed of 555 integrated circuits. When SW1 is pressed, the power supply charges C2 through D2. When the voltage of the four pins (reset end) of integrated circuit U1 is greater than 1V, the circuit oscillates and a "ding" sound is emitted from the speaker. When SW1 is released, the electrical energy stored in the C2 capacitor is discharged through R4 resistor, but the four pins of the integrated circuit continue to maintain a high level and maintain oscillation. This is because R1 resistor is connected to the oscillation circuit, the oscillation frequency decreases, causing the speaker to emit a "dong" sound. When the electrical energy on the C2 capacitor is released for a certain period of time, If the voltage of the 4 pins of the integrated circuit is lower than 1V, the circuit will stop oscillating. Press the button again and the circuit will repeat the above process

Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shipment.

We can accept customized package to meet different requirements:
1.Every item will separately pack into plastic bag,component,module can be packed in anti static bag.
2.Some fragile products such as the display screen can be packed in bubble bag.
3.Some large machines can be packed in wooden cases.
4.We can label JH code or client's code on package so that customers can check easily after receive goods.

NE555 Doorbell Circuit Kit

SKU : YXS1246 Brand :

Price : $ 0.13~0.53

100 +: $0.13~0.53500 +: $0.13~0.531000 +: $0.13~0.53

Style：

Kit(without battery box)
Kit+4*AA battery box
PCB board(without components)

Quantity :

- +

ADD TO CART