Electronic Temperature Control Sound Light Alarm Suite DC 3~5V DIY Kit

SKU: 1941026

1.55 1.39 Piece 1.3900000000000001 USD

¥ 11.00

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Description:

With Simple circuit, easy soldering, this suite is very suitable for the teenagers to learn circuit and soldering. The feature of this suite is small size, high sensitivity. It uses the sound and light to finish the alarm, and it can be used to detect the temperature. In conclusion, it has high practicability

1.Circuit introduction

The circuit of this suite is very simple, it is consisted of three triodes(two S09014 and one S9015), one active buzzer, one LED and one thermistor. Adjust the potentiometer to set the temperature threshold value, use two S9014 triode to drive the buzzer, when the temperature is high than the threshold value, the LED lights and the buzzer alarms; when the temperature is lower than the threshold value, the LED does not light, the buzzer does not alarm.

2.Parameter

Working voltage: DC 3~5V.

PCB size: :21*30mm

3.Components list:

DIY Kit Electronic Temperature Control Sound Light Alarm Suite

NO.

Component

Label

Capsulation

Value

Quantity

Remark

1

Triode(9015)

Q1

TO-92

 

1

 

2

Triode(9014)

Q2,Q3

TO-92

 

2

 

3

Potentiometer(W3605)

RP

W3605

1K

1

 

4

Active Buzzer

LS

 

 

1

 

5

Thermistor(1K)

Rt

 

1K

1

 

6

5mm LED(Red)

D1

 

 

1

 

7

Resistor

R1

AXIL-0.3

15K

2

 

8

Resistor

R2

AXIL-0.4

39K

2

 

9

Resistor

R3

AXIL-0.5

6.8K

2

 

10

2P Pin Header

 

 

 

1