Development of Single Chip Microcomputer for Heater PCBA Scheme

2020-12-14 08:59:36

Development of Single Chip Microcomputer for Heater PCBA Scheme

Development of Single Chip Microcomputer for Heater PCBA Scheme

  1. There are 7 tact switches, 10 LED lights, 1 digital display tube, 1 receiver on the PCB board, and the buttons are distributed as followsDevelopment of Single Chip Microcomputer


2. Specific function description:

a. When the switch is pressed, the power indicator of the whole machine is on, and the digital tube displays the room temperature (for example, 24°C). (Note: This switch is not on the PCB board and controls the main power supply)

b. ON/OFF:

When you press "ON/OFF" for the first time, the digital tube displays the room temperature (for example, 24°C). The default high-end corresponds to the LED light is on, the DC fan rotates, and the heating plate works;

When you press “ON/OFF” for the second time, the digital tube displays the room temperature (for example, 24℃), the gear corresponding to the LED light is off, the heating plate stops working, and the DC fan continues to work for about 10 seconds before the entire PCB board is disconnected from the power supply (including Humidification, DC fan, timing, gear setting, temperature setting function);

c. temperature setting:

The setting range is 06℃~36℃, the room temperature is displayed on the digital tube (for example, 24℃) ("+" means increase, "-" means decrease)

When the "+" key is pressed for the first time, the corresponding digital tube display increases by 1°C (for example, 25°C);

When the "+" key is pressed for the second time, the corresponding digital tube display will increase by 1°C again (for example, 26°C);

When the "+" key is pressed for the third time, the corresponding digital tube display will increase by 1°C again (for example, 27°C);

. . . . . .

When the digital tube displays 36℃, press the "+" button again, the corresponding digital tube displays 6℃ (6℃-36℃ incremental cycle)

. . . . . .

When the "-" key is pressed for the first time, the corresponding digital tube display will decrease by 1°C (for example, 23°C);

When you press the "-" key for the second time, the corresponding digital tube display will decrease by 1°C again (for example, 22°C);

When the "-" key is pressed for the third time, the corresponding digital tube display will decrease by 1°C again (for example, 21°C);

. . . . . .

When the digital tube displays 6℃, press the "-" button again, the corresponding digital tube displays 36℃ (36℃-06℃ decreasing cycle);

. . . . . .

d. Gear setting:

There are low, medium and high-end heaters (low 750w, medium 1250w, high 2000w)

When the "Gear setting" button is pressed for the first time, it is set to low gear, and the corresponding low LED light is on;

When the "Gear Setting" button is pressed for the second time, it is set to the middle range, and the corresponding middle LED light is on;

When you press the "Gear setting" button for the third time, it is set to high, and the corresponding low and medium LED lights are on; (two lights in three gears)

(Cycle in turn)

e. Timing function:

Set time key (it will automatically shut down when the set time is reached).

1: When you press the timer button for the first time and set it to 1 hour, the corresponding 1H LED light should be on.

2: When you press the second timer button and set to 2 hours, the corresponding 2 H LED light should be on.

3: When you press the third timer button and set to 3 hours, the corresponding 1H, 2H LED lights should be on.

4: When you press the fourth timer key and set to 4 hours, the corresponding 4H LED light should be on.

5: When you press the fifth timer key and set to 5 hours, the corresponding 1H, 4H LED lights should be on.

6: When you press the sixth timing key and set to 6 hours, the corresponding 2H, 4H LDE lights should be on.

7: When you press the seventh timer key and set to 7 hours, the corresponding 1H, 2H, 4H LED lights should be on.

8: When you press the eighth timer key and set to 8 hours, the corresponding 8H LED light should be on.

9: When you press the ninth timing key and set to 9 hours, the corresponding 1H, 8H LED lights should be on.

10: When you press the tenth timing key and set to 10 hours, the corresponding 2H, 8H LED lights should be on.

11: When you press the eleventh timer key, set to 11 hours, the corresponding 1H, 2H, 8H LED lights should be on.

12: When you press the twelfth time timing key, set to 12 hours, the corresponding 4H, 8H LED lights should be on.

13: When you press the thirteenth time button and set to 13 hours, the corresponding 1H, 4H, 8H LED lights should be on.

14: When you press the fourteenth timer key, set to 14 hours, the corresponding 2H, 4H, 8H LED lights should be on.

15: When you press the fifteenth timer key and set to 15 hours, the corresponding 1H, 2H, 4H, 8H LED lights should all be on.

(The timing function should be embedded in: temperature setting, gear setting, heating, humidification function)

f. FAN:

Press once, the corresponding LED light is off, and the DC fan stops working;

Press again, the corresponding LED light is on, and the DC fan starts to work;

(recyclable)

(Note: The DC fan current is 12V, and the pcb board needs a set of 12V power supply)

g. Humidification function:

When you press the "Humidification" button for the first time, the corresponding humidification LED lights up and the humidifier starts to work;

When you press the "Humidification" button for the second time, the corresponding humidification LED will be off, and the humidification work will end;

(recyclable)

3. Need to have remote control receiving function