Monday Kids DIY Kits AT89C2051 DS18B20 Kit Digital Temperature Controller microcontroller Design Thermometer Electronic Suite

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  • Brand Name: Monday Kids
  • Condition: New
  • Type: Logic ICs
  • is_customized: Yes
  • Operating Temperature: -30~85 celsius
  • Model Number: Temperature Controller
  • Application: Temperature Controller
1.Finished Product Picture:
2.Circuit Production:
This circuit uses DS18B20 as temperature sensor;3-bit common anode digital tube for display;AT89C2051 MCU for process and control.Connect with 5V+/-0.5V DC power on X1 port (please pay attention to positive and negative),press S1 circuit will display current temperature value;if press again,S1 will enter into tempeature set state;then you can press S2 or S3 to adjust temperature value;if press S1 again,it will come back to current temperature display and save the value at the same time.And this value will be saved in DS18B20,even power off it will not be lost.If power on for the next time,MCU will automatically read previous temperature setting value;long press S1 is for closing the display and temperature control;if press it again,function will be open.When current temperature is over setting temperature,LED1 will be on,and output 5V on X2 port,and it can drive 5V relay etc
Note:the appearance of temperature sensor DS18B20 and triode 9012 are very similar,so please don't install falsely
3.Component List:

Number

Name

Specification

Quantity

R1,,R2,R3,R4,R5,R6,R7

Resistor

470 ohm

7

R8,R9,R10,R11,R14

Resistor

4.7K ohm

5

R12

Resistor

10K ohm

1

R13

Resistor

1K ohm

1

C1,C3

Electrolytic Capacitor

10uF

2

C2

Ceramic Capacitor

0.1uF

1

C4,C5

Ceramic Capacitor

30pF

2

Q1,Q2,Q3,Q4

Triode

9012

4

Y1

Crystal Oscillator

12m

1

S1,S2,S3

Button Switch

6x6x10mm

3

IC1

MCU

AT89C2051

1

IC Socket

20P

1

IC2

Temperature Sensor

DS18B20

1

DS1

Digital Tube

3-Bit Common Anode

1

X1,X2

Connector Socket

2P

2

LED1

LED

3mm Red

1

PCB

50x55mm

1

4.Circuit Principle Diagram:

  • Unit Type: piece
  • Package Weight: 0.04kg (0.09lb.)
  • Package Size: 1cm x 1cm x 1cm (0.39in x 0.39in x 0.39in)

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