Liquid level detection device and system

Abstract

The utility model discloses a liquid level detection device and system, and relates to the technical field of liquid level detection, the device comprises a pressure monitoring module, the top of the pressure monitoring module is used for placing a container to be detected, and the pressure monitoring module can monitor the weight of liquid in the container; the liquid level detection module is inserted into the container and can detect the liquid level in the container; the microprocessor is connected with a power supply module, the microprocessor is connected with the pressure monitoring module through a data acquisition and processing module, and the microprocessor is connected with the liquid level detection module through a phase inverter. The liquid level detection device and the liquid level detection system provided by the utility model can be used for stably detecting the liquid level and reducing errors.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level detection technical field, in particular to a kind of liquid level detection device and system. BACKGROUND

[0002] Some solution preparation device needs to detect the liquid level in its matched water tank when using;The liquid level detection device understood by the inventor is all single-point detection, i.e. only single-variable measurement using capacitive liquid level meter, float type liquid level meter or ultrasonic liquid level meter can be carried out, to further realize the detection of liquid level, however, limited by their own structure and principle, error is prone to be generated in long-time use process, to further affect measurement result.Therefore, it is urgent to design a kind of measurement technical scheme of liquid level in container which can reduce error. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of liquid level detection device and system, can carry out the stable detection of liquid level, reduce error.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] First, the utility model provides a kind of liquid level detection device, comprising:

[0006] pressure monitoring module, its top is used to place the container to be measured, can monitor the weight of liquid in container;

[0007] liquid level detection module, is inserted in the container, can detect the liquid level in the container;

[0008] microprocessor, it is connected power module, and the microprocessor is connected with the pressure monitoring module by data acquisition and processing module, and the microprocessor is connected with the liquid level detection module by inverter.

[0009] Optionally, the pressure monitoring module includes container bearing bottom plate and container bearing upper cover, the container bearing upper cover is used to place the container to be measured;Four pressure sensors are arranged along the circumference between the container bearing bottom plate and the container bearing upper cover, and the pressure sensors are connected with the microprocessor by data acquisition and processing module.

[0010] Optionally, the pressure sensor is respectively first pressure sensor, second pressure sensor, third pressure sensor and fourth pressure sensor;The first pressure sensor includes first resistance strain gauge, the second pressure sensor includes second resistance strain gauge, the third pressure sensor includes third resistance strain gauge, and the fourth pressure sensor includes fourth resistance strain gauge;The first resistance strain gauge, the second resistance strain gauge, the third resistance strain gauge and the fourth resistance strain gauge are sequentially connected to form a wheatstone bridge, and are connected with the data acquisition and processing module respectively.

[0011] Optionally, the first pressure sensor further comprises a load bearing upper cover and a load bearing bottom plate, the load bearing upper cover and the load bearing bottom plate are capable of fixedly and clasply connecting, the first resistance strain gauge is fixedly and clasply arranged between the load bearing upper cover and the load bearing bottom plate; the second pressure sensor, the third pressure sensor and the fourth pressure sensor are all same in structure with the first pressure sensor.

[0012] Optionally, four load bearing recesses are equidistantly arranged on the container load bearing bottom plate in the circumferential direction, and one of the pressure sensors is fixedly arranged in each of the load bearing recesses.

[0013] Optionally, the liquid level detection module comprises a container connecting plate, three mounting positions are sequentially arranged on the container connecting plate in the axial direction, a first capacitive liquid level sensor, a second capacitive liquid level sensor and a third capacitive liquid level sensor are respectively fixedly arranged on the three mounting positions, the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor are respectively connected with the microprocessor through inverters, and the container connecting plate is used for being vertically inserted into a container to be detected.

[0014] Optionally, the first capacitive liquid level sensor comprises a capacitive liquid level sensor shell, a capacitive liquid level sensor body is fixedly arranged in the capacitive liquid level sensor shell, the capacitive liquid level sensor body is connected with the microprocessor through an inverter, and the capacitive liquid level sensor shell is fixed on the mounting position through bolts away from the capacitive liquid level sensor body; the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor are same in structure.

[0015] In the second aspect, the utility model provides a kind of liquid level detection system, comprising: data acquisition and processing module, microprocessor, inverter and power module;The data acquisition and processing module are respectively connected with the microprocessor and above-mentioned first resistance strain gauge, second resistance strain gauge, third resistance strain gauge and fourth resistance strain gauge in liquid level detection device;The power module and the inverter are connected with the microprocessor;The inverter is connected with the microprocessor and above-mentioned first capacitive liquid level sensor, second capacitive liquid level sensor and third capacitive liquid level sensor in liquid level detection device respectively;

[0016] The inverter is used to convert the high level output by the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor into low level or convert the low level output by the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor into high level.

[0017] The data acquisition and processing module is configured to acquire resistance change signals of the first, second, third and fourth resistance strain gauges, and to amplify and perform analog-digital conversion processing on the resistance change signals to obtain processed resistance change signals.

[0018] The microprocessor is configured to determine whether the liquid in the container under test reaches a set liquid level according to a high level or a low level output by the inverter, and to determine the liquid level inside the container under test according to the processed resistance change signals.

[0019] The power module is configured to supply power to the microprocessor.

[0020] Optionally, the data acquisition and processing module is an HX711 chip.

[0021] Optionally, the microprocessor is an STM32-G030 chip.

[0022] According to the specific embodiments of the utility model, the following technical effects are achieved.

[0023] The utility model provides a kind of liquid level detection device and system, by pressure monitoring module, the weight of container and its liquid can be measured in real time, after subtracting the weight of empty container and liquid level detection module itself, the weight of liquid can be obtained, liquid is taken water as an example, under the condition of standard atmospheric pressure and 4 DEG C, the density of water is about 1 gram / milliliter, which means that 1 milliliter of water weighs about 1 gram.Therefore, milliliter and gram can be interchanged in the measurement of water, the cross-sectional dimension of container is known, based on this, the weight of water in container can be converted into liquid level by data acquisition and processing module;Simultaneously by liquid level detection module, the liquid level in container is monitored in real time, microprocessor compares whether pressure monitoring module data and liquid level data changed are within allowable deviation, this way increases self-detection for the system of whole liquid level detection, makes two kinds of detection modes monitor each other, common test, can ensure the perfect work of entire system, two kinds of detection modes work cooperatively, reduce detection error. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0025] Figure 1 It is a pressure monitoring module structure schematic view of the liquid level detection device provided by an embodiment of the utility model;

[0026] Figure 2 is an exploded view; Figure 1

[0027] Figure 3 is a schematic view of a container bearing bottom plate structure provided by an embodiment of the present application;

[0028] Figure 4 is a schematic view of a container bearing upper cover structure provided by an embodiment of the present application;

[0029] Figure 5 is a schematic view of a first pressure sensor structure provided by an embodiment of the present application;

[0030] Figure 6 is an exploded view; Figure 5

[0031] Figure 7 is a schematic view of a liquid level detection module of a liquid level detection device provided by an embodiment of the present application;

[0032] Figure 8 is an exploded schematic view; Figure 7

[0033] Figure 9 is a structural block diagram of a multi-point liquid level detection system based on a weighing platform and a capacitive liquid level sensor in an embodiment of the present application;

[0034] Figure 10 is a circuit schematic view of a multi-point liquid level detection system based on a weighing platform and a capacitive liquid level sensor provided by an embodiment of the present application.

[0035] In the figure: 1-bearer recess, 2-threaded fixing hole, 3-container bearing upper cover fixing groove, 4-bearer upper cover, 5-first resistance strain gauge, 6-bearer bottom plate, 7-second resistance strain gauge, 8-third resistance strain gauge, 9-fourth resistance strain gauge, 10-container bearing bottom plate, 11-container bearing bottom plate support leg, 12-container bearing upper cover; 13-capacitive liquid level sensor shell, 14-capacitive liquid level sensor main body, 15-container connecting plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] ​​​The above purposes, features and advantages of the present application can be more apparent and understandable, and the present application will be further described in detail in combination with the drawings and specific embodiments.

[0038] In one exemplary embodiment, as shown in Figures 1-8 A liquid level detection device is provided, comprising a pressure monitoring module, a liquid level detection module and a microprocessor, the top of the pressure monitoring module is used for placing a container to be measured, which can monitor the weight of the liquid in the container; the liquid level detection module is inserted into the container, which can detect the liquid level in the container; the microprocessor is connected to the power module, and the microprocessor is connected to the pressure monitoring module through the data acquisition and processing module, and the microprocessor is connected to the liquid level detection module through the inverter.

[0039] In an embodiment, the pressure monitoring module comprises a container bearing bottom plate 10 and a pressure sensor, the top of the container bearing bottom plate 10 is connected with a container bearing upper cover 12, and the container bearing upper cover 12 is used for placing a container to be measured; the pressure sensor is arranged between the container bearing bottom plate 10 and the container bearing upper cover 12, and four pressure sensors are uniformly arranged along the circumference of the container bearing bottom plate 10, and the four pressure sensors are connected with the data acquisition and processing module. A plurality of container bearing bottom plate support legs 11 are fixedly arranged at the outer bottom of the container bearing bottom plate 10, so as to stably support the whole device, a container bearing upper cover fixing groove 3 is arranged at the center position of the container bearing upper cover 12, and the container bearing upper cover fixing groove 3 is used for placing a container to be measured, so that the relative positions of the container and the four pressure sensors are symmetrical, and the container to be measured can be fixed, thereby facilitating the measurement of the weight of the solution in the container according to the four pressure sensors, and then determining the liquid level in the container according to the conversion relationship between the weight and the volume of the solution.

[0040] In order to realize more accurate real-time monitoring, and facilitate the collection of data, so the four pressure sensors of the embodiment are respectively first pressure sensor, second pressure sensor, third pressure sensor and fourth pressure sensor; the first pressure sensor comprises a first resistance strain gauge 5, the second pressure sensor comprises a second resistance strain gauge 7, the third pressure sensor comprises a third resistance strain gauge 8, and the fourth pressure sensor comprises a fourth resistance strain gauge 9, the first resistance strain gauge 5, the second resistance strain gauge 7, the third resistance strain gauge 8 and the fourth resistance strain gauge 9 are connected in sequence to form a Wheatstone bridge, and are connected with a data acquisition and processing module; after placing the container to be measured on the container load upper cover, elastic deformation is generated under the action of external force, so that the four resistance strain gauges pasted on the surface also deform, after the deformation of the resistance strain gauge, the resistance value will change (increase or decrease), and then the resistance change is converted into an electric signal (voltage or current) through the corresponding measurement circuit, thereby completing the process of converting external force into electric signal, and further realizing the function of real-time measurement of the weight of the liquid in the container. According to the cross-sectional size of the container, and under the condition of standard atmospheric pressure and 4℃, the density of water is about 1g / ml, and the conversion between milliliter and gram of water is realized, and finally the liquid level of water in the container is obtained. This detection method does not need to be in direct contact with the liquid medium, and the reaction is sensitive and continuous testing of the liquid level in the container can be realized.

[0041] In order to better install and arrange the resistance strain gauge, the pressure sensor structure of the embodiment further comprises a load upper cover 4 and a load bottom plate 6 with a circular cross-section structure, the load upper cover 4 and the load bottom plate 6 can be fixedly connected, the first resistance strain gauge 5, the second resistance strain gauge 7, the third resistance strain gauge 8 and the fourth resistance strain gauge 9 are respectively fixedly attached between the load upper cover 4 and the load bottom plate 6 of the respective sensor. Four load recesses 1 are arranged on the container load bottom plate 10 at equal intervals in the circumferential direction, and one pressure sensor is fixedly arranged in each load recess 1. In order to realize the fixation of the pressure sensor, a threaded fixing hole 2 is arranged on one side of the load recess 1, and the load upper cover 4 is provided with a connecting positioning part at both ends, the positioning part is provided with a positioning hole, and the positioning hole and the threaded fixing hole 2 on one side of the load recess 1 are fixedly connected through a bolt. The load upper cover 4 and the load bottom plate 6 are connected with the corresponding resistance strain gauges above and below, and are combined into a load, i.e. a pressure sensor.

[0042] The liquid level detection module of the embodiment is a capacitive liquid level detection module, and the structure thereof comprises a container connecting plate 15, a plurality of mounting positions are sequentially arranged on the container connecting plate 15 in the axial direction, and a capacitive liquid level sensor is arranged on each mounting position; three capacitive liquid level sensors are taken as examples for description in the embodiment, and the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor are respectively fixedly arranged on the three mounting positions; the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor are respectively connected with the microprocessor through inverters; and the container connecting plate 15 is used for being vertically inserted into a container to be detected. The capacitive liquid level sensors are of the same structure, and specifically, the first capacitive liquid level sensor comprises a capacitive liquid level sensor shell 13, and a capacitive liquid level sensor main body 14 is fixedly arranged in the capacitive liquid level sensor shell 13; the capacitive liquid level sensor main body 14 is of a mature known structure, is connected with the microprocessor through the inverter, and the capacitive liquid level sensor shell 13 is fixed on the mounting position through bolts at the side away from the capacitive liquid level sensor main body 14; the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor are of the same structure. In use, the container connecting plate 15 is inserted into the container to be detected, when the water level changes, the capacitance of the capacitive liquid level sensor at the position of the water level changes, and the change of the capacitance is used to measure the height of the liquid level. The height of the liquid level is measured through the change of the capacitance between two electrodes, and the structure and principle thereof belong to a mature technical scheme.

[0043] In one exemplary embodiment, the utility model provides a kind of liquid level detection system, comprising: data acquisition and processing module, microprocessor, inverter and power module;The data acquisition and processing module are respectively connected with the microprocessor and the first resistance strain gauge, the second resistance strain gauge, the third resistance strain gauge and the fourth resistance strain gauge in above-mentioned liquid level detection device;The power module and the inverter are connected with the microprocessor;The inverter is connected with the microprocessor and the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor in above-mentioned liquid level detection device respectively.

[0044] The inverter is used to convert the high level output by the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor into low level or convert the low level output by the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor into high level.

[0045] The data acquisition and processing module is used to acquire the resistance change signals of the first, second, third, and fourth resistance strain gauges, and to amplify and perform analog-to-digital conversion on the resistance change signals to obtain the processed resistance change signals. The data acquisition and processing module is an HX711 chip.

[0046] The microprocessor is used to determine whether the liquid in the container under test has reached the set liquid level based on the high or low level output of the inverter, and to determine the internal liquid level of the container under test based on the processed resistance change signal. The microprocessor is an STM32-G030 chip.

[0047] The power module is used to supply power to the microprocessor.

[0048] In this embodiment, as Figure 9 and Figure 10 As shown, the liquid level detection system architecture based on a weighing platform and a liquid level sensor includes a microprocessor, a power supply module, a data acquisition and processing module, and an inverter. The power supply module provides 5V and 3.3V to the circuit. The pressure monitoring module is connected to the microprocessor via an HX711 chip to convert the resistance signal into a digital signal. The liquid level detection module is connected to the microprocessor via an inverter to apply a 3.3V voltage change to the input 5V signal. The microprocessor uses the STM32-G030 chip, which is inexpensive and only requires a 3.3V supply to operate. The pressure monitoring module uses four sets of resistance strain gauge pressure sensors. The four sets of pressure sensors are assembled to form a load-bearing block. The sensor wires are interconnected in pairs to form a bridge circuit, and the signal lines are led out and connected to the HX711 chip. After processing by the microprocessor, the actual weight is obtained. The liquid level detection module uses a capacitive liquid level sensor, which outputs a high or low level signal. The signal is sent to the microprocessor via an inverter. The microprocessor performs I / O input acquisition. The default output of the capacitive liquid level sensor is high level. After passing through the inverter, the signal input to the I / O port is low level. That is, a high level is considered as the set liquid level not being reached. When the liquid level is below the capacitive liquid level sensor, the capacitive liquid level sensor outputs a low level signal. After passing through the inverter, it becomes a high level and is input to the I / O port. The microprocessor determines that the set liquid level has been reached and determines that there is water.

[0049] The system is initialized after power on, reads the stored peeling value from the FLASH, completes zero correction, the microprocessor sends weight collection instructions and liquid level collection instructions to the pressure sensor, collects resistance change values, processes them through the data collection and processing module, obtains the processed resistance change signal, and converts it into the actual weight through the fitting formula in the program. The fitting formula is calculated by fitting the collected data with the actual weight of the weight at multiple points, and the measurement range is 0-160KG, and the fitting formula with a determination coefficient of 0.999 is obtained:

[0050] Y = 0.4637 * X - 1.4465.

[0051] Where X is the processed resistance change signal, and Y is the actual weight.

[0052] After the weight correction is completed through the fitting formula, it is converted into the liquid level in the container and uploaded.

[0053] The capacitive liquid level sensor outputs a high flat signal in the absence of water, and when the water level exceeds the fixed point of the capacitive liquid level sensor, the output signal becomes a low flat signal, which is transmitted to the chip STM32-G030 through the inverter, and is stored and uploaded in the program. The values of each capacitive liquid level sensor will be collected and determined in the program. Generally, a plurality of liquid level sensors will be placed at specific liquid levels, such as 20%, 50%, 80%, and 100%. If it is found that the data collected by the low capacitive liquid level sensor has not changed, and the data collected by the high capacitive liquid level sensor has changed, such as the 20% and 80% liquid level sensors have signal changes, but the 50% liquid level sensor does not have signal changes, and at the same time when the data of the capacitive liquid level sensor changes, the program can determine that the detection system is abnormal, and the weighing platform can also collect data synchronously. In the program, whether the weighing platform data and the liquid level data that have changed are within the allowable deviation, this way adds a level of self-detection system to the overall liquid level detection system, so that the two detection methods monitor each other and test together, which can ensure the perfect work of the entire system.

[0054] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0055] The principle and implementation mode of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the present application. In conclusion, the content of the present application should not be understood as the limitation of the present application.

Claims

1. A liquid level detecting device characterized by comprising: The utility model relates to a kind of liquid level monitoring device, including: pressure monitoring module, its top is used to place the container to be measured, can monitor the weight of liquid in container;Liquid level detection module is inserted in the container, can detect the liquid level in the container;Microprocessor is connected power module, and the microprocessor is connected with the pressure monitoring module by data acquisition and processing module, and the microprocessor is connected with the liquid level detection module by inverter. The pressure monitoring module includes a container-bearing bottom plate and a container-bearing upper cover, the container-bearing upper cover is used to place the container to be measured;Four pressure sensors are arranged circumferentially between the container-bearing bottom plate and the container-bearing upper cover, and the pressure sensors are connected to the microprocessor through the data acquisition and processing module. The pressure sensors are respectively a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor;The first pressure sensor includes a first resistance strain gauge, the second pressure sensor includes a second resistance strain gauge, the third pressure sensor includes a third resistance strain gauge, and the fourth pressure sensor includes a fourth resistance strain gauge;The first resistance strain gauge, the second resistance strain gauge, the third resistance strain gauge and the fourth resistance strain gauge are sequentially connected to form a Wheatstone bridge, and are respectively connected to the data acquisition and processing module. The first pressure sensor further includes a bearing upper cover and a bearing bottom plate, the bearing upper cover and the bearing bottom plate can be fixedly connected, and the first resistance strain gauge is fixedly attached between the bearing upper cover and the bearing bottom plate;The second pressure sensor, the third pressure sensor and the fourth pressure sensor have the same structure as the first pressure sensor.

2. The liquid level detecting device according to claim 1, characterized by Four bearing recesses are arranged equidistantly circumferentially on the container-bearing bottom plate, and one pressure sensor is fixedly arranged in each bearing recess.

3. The liquid level detection device according to claim 2, characterized in that The liquid level detection module includes a container connecting plate, three mounting positions are sequentially arranged on the container connecting plate in the axial direction, a first capacitive liquid level sensor, a second capacitive liquid level sensor and a third capacitive liquid level sensor are respectively fixedly arranged on the three mounting positions, and the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor are respectively connected to the microprocessor through an inverter;The container connecting plate is used to be vertically inserted into the container to be measured.

4. The liquid level detection device according to claim 3, characterized in that The first capacitive liquid level sensor includes a capacitive liquid level sensor housing, a capacitive liquid level sensor body is fixedly installed in the capacitive liquid level sensor housing, the capacitive liquid level sensor body is connected to the microprocessor through an inverter, and the capacitive liquid level sensor housing is fixed on the mounting position through a bolt away from the capacitive liquid level sensor body side;The first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor have the same structure.

5. The liquid level detection device according to claim 4, characterized in that The utility model relates to a kind of liquid level monitoring device, including: pressure monitoring module, its top is used to place the container to be measured, can monitor the weight of liquid in container;Liquid level detection module is inserted in the container, can detect the liquid level in the container;Microprocessor is connected power module, and the microprocessor is connected with the pressure monitoring module by data acquisition and processing module, and the microprocessor is connected with the liquid level detection module by inverter.

6. The liquid level detection apparatus according to claim 1, characterized by ​ 7. The liquid level detection device according to claim 6, characterized in that ​ 8. A liquid level detection system, characterized in that ​ The data acquisition and processing module, the microprocessor, the inverter and the power module; the data acquisition and processing module is connected with the microprocessor, the first resistance strain gauge, the second resistance strain gauge, the third resistance strain gauge and the fourth resistance strain gauge in the liquid level detection device of any one of claims 1-7 respectively; the power module and the inverter are connected with the microprocessor; the inverter is connected with the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor in the liquid level detection device of any one of claims 1-7 respectively; The inverter is used for converting the high level output by the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor into low level or converting the low level output by the first capacitive liquid level sensor, the second capacitive liquid level sensor and the third capacitive liquid level sensor into high level; The data acquisition and processing module is used for collecting the resistance change signal of the first resistance strain gauge, the second resistance strain gauge, the third resistance strain gauge and the fourth resistance strain gauge, and carrying out amplification and analog-digital conversion processing on the resistance change signal to obtain the processed resistance change signal; The microprocessor is used for judging whether the liquid in the container to be measured reaches the set liquid level according to the high level or the low level output by the inverter, and determining the internal liquid level of the container to be measured according to the processed resistance change signal; The power module is used for supplying power to the microprocessor.

9. The liquid level detection system of claim 8, wherein, The data acquisition and processing module is HX711 chip.

10. The liquid level detection system of claim 8, wherein, The microprocessor is STM32-G030 chip.

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