CN213306688U

CN213306688U - Automatic watering device based on single chip microcomputer control

Info

Publication number: CN213306688U
Application number: CN202021859052.1U
Authority: CN
Inventors: 季侠
Original assignee: Hefei Panxin Electronic Co ltd
Current assignee: Hefei Panxin Electronic Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-01
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses an automatic watering device based on single chip microcomputer control relates to technical field. The utility model discloses in: the control chip U1 is respectively and electrically connected with the humidity acquisition circuit, the watering circuit and the alarm circuit; the humidity acquisition circuit acquires the sudden humidity and transmits the sudden humidity to the control chip U1; the control chip U1 controls the on-off of the watering circuit and the alarm circuit. The utility model discloses a set up soil moisture sensor and detect soil moisture, through the operation of control chip control motor that waters, can water automatically according to plant soil moisture's change, remind the user when humidity is too big through setting up bee calling organ, through detecting soil moisture at soil moisture sensor and directly setting up ground capacitor and resistance, the reducing signal interference improves and has simple structure, and is with low costs.

Description

Automatic watering device based on single chip microcomputer control

Technical Field

The utility model belongs to the technical field of the controller, especially, relate to an automatic watering device based on single chip microcomputer control.

Background

Along with the improvement of living standard, more and more families can choose to plant some flowers, flowers and plants at home, but many times people do not water everyday, have designed out the automatic watering device for this reason, but the automatic watering device on the market is mostly mechanical device, does not water according to soil moisture variation, can not change the watering volume in the face of different plants, and the working method in different seasons is still the same, and is not intelligent enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic watering device based on single chip microcomputer control detects soil moisture through setting up soil moisture sensor, through the operation of the motor that control chip control watered, can water automatically according to plant soil moisture's change, reminds the user when humidity is too big through setting up bee calling organ, directly sets up ground capacitor and resistance through detecting soil moisture at soil moisture sensor, and the reduction signal interference improves and has simple structure, and is with low costs.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to an automatic watering device based on single chip microcomputer control, which comprises a humidity acquisition circuit, a watering circuit, an alarm circuit and a control chip U1, wherein the control chip U1 is electrically connected with the humidity acquisition circuit, the watering circuit and the alarm circuit respectively; the humidity acquisition circuit acquires sudden humidity and transmits the sudden humidity to the control chip U1; the control chip U1 controls the on-off of the watering circuit and the alarm circuit;

the humidity acquisition circuit comprises a pin 1 of a humidity sensor CN3 connected with a voltage source VCC; the 2 pin of the humidity sensor CN3 is connected with the 3 pin of the control chip U1; the 3 pins of the humidity sensor CN3 are grounded;

the watering circuit comprises a watering motor B1 and an NPN triode Q1; one end of the watering motor B1 is connected with a voltage source VCC; the other end of the watering motor B1 is connected with the collector of an NPN triode Q1; the emitter of the NPN triode Q1 is grounded; the base electrode of the NPN triode Q1 is connected in series with a matching resistor R1 to a pin 6 of a control chip U1;

the alarm circuit comprises a buzzer BZ 1; the positive electrode of the buzzer BZ1 is connected with a switch S1 to a control chip U1 in series; the negative electrode of the buzzer BZ1 is connected with a matching resistor R6 in series to the ground;

the pin 1 of the control chip U1 is grounded, and the pin 4 of the control chip U1 is connected with a voltage source VDD; and the pin 14 of the control chip U1 is connected with an LED display circuit.

Further, a capacitor C3 is connected in series with the 2 pin of the humidity sensor CN3 to the 3 pin of the control chip U1; a grounding capacitor C4 is connected between the pin 2 of the humidity sensor CN3 and the capacitor C3; a matched resistor R3 is connected in series with a pin 2 of the humidity sensor CN3 to a pin 3 of the humidity sensor CN 3; the pin 3 of the control chip U1 is connected in series with a matching resistor R4 to ground.

Further, the base of the NPN transistor Q1 is connected in series with a matching resistor R2 to the emitter of the NPN transistor Q1.

Further, the LED display circuit connection comprises a light emitting diode D1; the cathode of the light emitting diode D1 is grounded; the anode of the LED D1 is connected in series with a matching resistor R5 to the 14 th pin of the control chip U1.

The utility model discloses following beneficial effect has:

the utility model discloses a set up soil moisture sensor and detect soil moisture, through the operation of control chip control motor that waters, can water automatically according to plant soil moisture's change, remind the user when humidity is too big through setting up bee calling organ, through detecting soil moisture at soil moisture sensor and directly setting up ground capacitor and resistance, the reducing signal interference improves and has simple structure, and is with low costs.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a circuit diagram of an automatic watering device based on single chip microcomputer control;

FIG. 2 is a circuit diagram of a humidity acquisition circuit;

FIG. 3 is a circuit diagram of a watering circuit;

fig. 4 is a circuit diagram of an alarm circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-4, the utility model relates to an automatic watering device based on single chip microcomputer control, which comprises a humidity acquisition circuit, a watering circuit, an alarm circuit and a control chip U1, wherein the control chip U1 is electrically connected with the humidity acquisition circuit, the watering circuit and the alarm circuit respectively; the humidity acquisition circuit acquires the sudden humidity and transmits the sudden humidity to the control chip U1; the control chip U1 controls the on-off of the watering circuit and the alarm circuit;

wherein, the humidity acquisition circuit comprises a pin 1 of a humidity sensor CN3 connected with a voltage source VCC; a pin 2 of the humidity sensor CN3 is connected with a pin 3 of the control chip U1; the 3 pin of the humidity sensor CN3 is grounded; a capacitor C3 is connected in series with a pin 2 of the humidity sensor CN3 to a pin 3 of the control chip U1; a grounding capacitor C4 is connected between the pin 2 of the humidity sensor CN3 and the capacitor C3; a matched resistor R3 is connected in series with a pin 2 of the humidity sensor CN3 to a pin 3 of the humidity sensor CN 3; the pin 3 of the control chip U1 is connected in series with a matching resistor R4 to ground; the humidity sensor CN3 is a MoistureSensor soil humidity sensor;

the watering circuit comprises a watering motor B1 and an NPN triode Q1; one end of a watering motor B1 is connected with a voltage source VCC; the other end of the watering motor B1 is connected with the collector of an NPN triode Q1; the emitter of the NPN triode Q1 is grounded; the base electrode of the NPN triode Q1 is connected in series with a matching resistor R1 to the pin 6 of the control chip U1; the base electrode of the NPN triode Q1 is connected with a matching resistor R2 to the emitting electrode of the NPN triode Q1 in series; the watering motor is connected with an external water source;

the alarm circuit comprises a buzzer BZ 1; the positive electrode of the buzzer BZ1 is connected with a switch S1 to the control chip U1 in series; the negative electrode of the buzzer BZ1 is connected with a matching resistor R6 in series to the ground; the buzzer BZ1 can be manually turned off by setting the switch S1;

the control chip U1 is M8P 625; a pin 1 of the control chip U1 is grounded, and a pin 4 of the control chip U1 is connected with a voltage source VDD; the pin 14 of the control chip U1 is connected with the LED display circuit; the LED display circuit connection comprises a light emitting diode D1; the cathode of the light emitting diode D1 is grounded; the anode of the led D1 is connected in series with a matching resistor R5 to the 14 th pin of the control chip U1.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an automatic watering device based on single chip microcomputer control, includes humidity acquisition circuit, the circuit that waters, warning circuit and control chip U1, its characterized in that: the control chip U1 is respectively and electrically connected with the humidity acquisition circuit, the watering circuit and the alarm circuit; the humidity acquisition circuit acquires sudden humidity and transmits the sudden humidity to the control chip U1; the control chip U1 controls the on-off of the watering circuit and the alarm circuit;

2. The automatic watering device based on the single chip microcomputer control of claim 1, wherein a capacitor C3 is connected in series with a pin 2 of the humidity sensor CN3 to a pin 3 of a control chip U1; a grounding capacitor C4 is connected between the pin 2 of the humidity sensor CN3 and the capacitor C3;

a matched resistor R3 is connected in series with a pin 2 of the humidity sensor CN3 to a pin 3 of the humidity sensor CN 3;

the pin 3 of the control chip U1 is connected in series with a matching resistor R4 to ground.

3. The automatic watering device based on the single chip microcomputer control of claim 1, wherein a base electrode of the NPN triode Q1 is connected in series with a matching resistor R2 to an emitter electrode of the NPN triode Q1.

4. The automatic watering device based on single chip microcomputer control of claim 1, wherein the LED display circuit connection comprises a light emitting diode D1; the cathode of the light emitting diode D1 is grounded; the anode of the LED D1 is connected in series with a matching resistor R5 to the 14 th pin of the control chip U1.