Small camera module and electronic product

Abstract

The utility model discloses a small camera module, which is used for expanding an XIAO ESP32S3 development board, and comprises an FPC (Flexible Printed Circuit) connector used for connecting a camera; the microphone is used for recording audio data; the BTB connector is connected with the FPC connector, and the BTB connector is also used for being connected with an XIAO ESP32S3 development board; the expansion connector is used for connecting expansion peripherals; and the SD card connector is used for plugging an SD card. The small camera module is small in size, the functions of audio recording, image recording, storage, power management and the like are integrated in the small camera module, the expansion connector is used for connecting a secondary development board and expansion peripherals, the expansibility is enhanced, and the small camera module has the advantages of being small in size, short in development period, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the field of wearable technology, and in particular to a small camera module and an electronic product. Background Art

[0002] With the rapid development of the Internet of Things, the demand for Internet of Things (IoT) devices has grown rapidly. As common wireless communication technologies, Wi-Fi and BLE have a relatively mature industry chain and excellent features such as long-distance connection compared to other wireless technologies (such as zigbee and NFC), and have gained a considerable share in the IoT market. This makes Wi-Fi solutions and BLE solutions (terminals + gateways) an ideal technical choice for large-scale promotion and application of the Internet of Things.

[0003] XIAO ESP32 S3 is a small development board that supports Wi-Fi, BLE, TinyML and has powerful functions. However, due to its size, it has insufficient peripherals and small storage space, which prevents it from exerting its powerful performance. How to expand the functions of XIAOESP32 S3 and apply it to camera modules is a technical problem that needs to be solved urgently. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a small camera module and an electronic product with small size, short development cycle and strong expandability.

[0005] One embodiment of the utility model provides a small camera module for expanding the XIAO ESP32 S3 development board, and the small camera module includes: an FPC connector for connecting a camera;

[0006] Microphone, used to record audio data; BTB connector, the BTB connector is used to connect to the XIAO ESP32 S3 development board; expansion connector, used to connect to expansion peripherals; SD card connector, used to plug in an SD card.

[0007] Optionally, the small camera module includes a power module for supplying power to the small camera module.

[0008] Optionally, the small camera module further includes a step-down circuit, which is connected to the power module and the FPC connector and is used to reduce the voltage of the power module to a preset voltage and then supply power to the FPC connector.

[0009] Optionally, the step-down circuit includes a first step-down circuit and a second step-down circuit, the first step-down circuit reduces the voltage of the power module to a first voltage and then supplies power to the FPC connector, and the second step-down circuit reduces the voltage of the power module to a second voltage and then supplies power to the FPC connector.

[0010] Optionally, the small camera module further includes a power path management module, one end of the power path management module is connected to the power module, and the other end of the power path management module is connected to the step-down circuit.

[0011] Optionally, the small camera module further includes a pull-up resistor, one end of the pull-up resistor is connected to the power path management module, and the other end is respectively connected to the SD card connector and the BTB connector.

[0012] Optionally, the small camera module also includes a universal data interface, a first cuttable pad and a second cuttable pad, the BTB connector is connected to the microphone through the data interface and the first cuttable pad, one end of the second cuttable pad is connected to the power path management module, and the other end is connected to the pull-up resistor.

[0013] Optionally, the first buck circuit and the second buck circuit are DC-DC buck circuits.

[0014] Optionally, the DC-DC step-down circuit adopts a SGM2036S chip.

[0015] Another embodiment of the present invention further provides an electronic product, comprising any of the small camera modules described above.

[0016] In the technical solution provided by the embodiment of the utility model, a small camera module is used to expand the XIAO ESP32 S3 development board, and the small camera module includes: an FPC connector for connecting a camera, a microphone for recording audio data, a BTB connector for connecting the XIAO ESP32 S3 development board, the BTB connector is connected to the FPC connector, an expansion connector for connecting expansion peripherals, and an SD card connector for plugging an SD card. Compared with the prior art, the small camera module of the utility model is small in size, and integrates audio recording, image recording, storage function, power management and other functions internally. The expansion connector is used to connect a secondary development board and expand peripherals, which enhances the expandability and has the advantages of small size, short development cycle, low cost and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall circuit of a small camera module.

[0018] Figure 2 The utility model is a circuit diagram of a control module of a small camera module.

[0019] Figure 3 The utility model is a circuit diagram of a step-down circuit of a small camera module.

[0020] Figure 4 The utility model is a circuit diagram of an FPC connector of a small camera module. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] It should be noted that when an element is described as being "connected" or "connected to" another element, it may be directly connected to the other element, or one or more intermediate elements may exist therebetween. The terms "upper", "lower", "inner", "outer", etc. used in this specification indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention.

[0023] As a hot cutting-edge technology, AI has achieved rapid development in recent years. Among the many AI technology routes, TinyML is naturally suitable for IoT applications with its low power consumption and low computing power requirements. IoT (Internet of Things) development boards that support TinyML are also very popular in the developer community.

[0024] As the world's leading electronic open source hardware platform, Seeed has been deeply involved in the fields of IoT and AI for many years and has profound accumulation. This product is a stable, easy-to-use, low-cost, TinyML-supported Wi-Fi and BLE IoT development board launched in this context. It adopts the XIAO series version, combines TinyML with Wi-Fi and BLE IoT, and is very suitable for wearable and IoT applications, and is naturally adapted to TinyML machine learning.

[0025] This utility model provides a small camera module for expanding the XIAO ESP32 S3 development board, please refer to Figure 1As shown, the small camera module includes a flexible circuit board connector (FPC connector), a microphone, a board-to-board connector (BTB connector), an expansion connector and an SD card connector, wherein the FPC connector is used to connect the camera; the microphone is used to record audio data; the BTB connector is connected to the FPC connector and is also used to connect the XIAO ESP32 S3 development board; the expansion connector is used to connect secondary development and expansion peripherals; and the SD card connector is used to connect the SD card.

[0026] In one embodiment of the present utility model, the small camera module includes a power module and a power path management module, and the power module is used to power the small camera module. The power module includes a first power supply and a second power supply, the first power supply is a 3.7V-4.7V power supply, the first power supply is connected to the BTB connector and the power path management module, and the second power supply is a 3.3V power supply, and the second power supply is respectively connected to the BTB connector and the microphone for charging the microphone. The input end of the power path management module is connected to the first power supply and the second power supply, and the output end is connected to the FPC connector for selecting the power supply mode.

[0027] In one embodiment of the present utility model, the small camera module also includes a step-down circuit, which is connected to the power module and the FPC connector, and is used to reduce the voltage of the power module to a preset voltage and then supply power to the FPC connector. Specifically, the step-down circuit includes a first step-down circuit and a second step-down circuit. After the first step-down circuit and the second step-down circuit are connected in parallel, the input end is connected to the power path management module, and the output end is connected to the FPC connector. The first step-down circuit is used to reduce the voltage of the first power supply to a first voltage, i.e., 2.8V, and then supply power to the FPC connector. The second step-down circuit is used to reduce the voltage of the first power supply to a second voltage, i.e., 1.3V, and then supply power to the FPC connector.

[0028] In one embodiment of the present invention, the first buck circuit and the second buck circuit are DC-DC buck circuits. Preferably, the DC-DC buck circuit uses an SGM2036S chip.

[0029] In one embodiment of the utility model, the small camera module also includes a pull-up resistor, which is used to enhance the driving capability of the SD card data line. One end of the pull-up resistor is connected to the power path management module, and the other end is respectively connected to the SD card connector and the BTB connector. The SD card connector is used to plug in the SD card and supports MicroSD cards with a maximum capacity of 32GB.

[0030] In one embodiment of the utility model, the small camera module also includes a universal data interface, a first cuttable pad and a second cuttable pad, the BTB connector is connected to the microphone through the data interface and the first cuttable pad, the first cuttable pad is used to connect or disconnect the data signal of the microphone, the data interface is used for input or output interface, one end of the second cuttable pad is connected to the power path management module, and the other end is connected to the pull-up resistor, which is used to connect or disconnect the clock signal of the microphone, and the power path management module selects the first power supply to power the FPC connector after the step-down circuit is stepped down as needed, and selects the second power supply to power the microphone and the SD card connector as needed. The present application can control which component on the board the IO signal of the board is connected to by cutting or welding the cutting pads on the board, thereby enhancing the expandability.

[0031] The small camera module of the utility model is small in size, and integrates audio recording, image recording, storage function, power management and other functions. The expansion connector is used to connect the secondary development board and expand peripherals, which enhances the expandability. It has the advantages of small size, short development cycle and low cost.

[0032] Please refer to Figure 2 The figure shows a circuit diagram of the control module of the utility model, wherein the control module adopts the chip MSM261D3526H1CPM.

[0033] Please refer to Figure 3 The figure shows a circuit diagram of a DC-DC step-down circuit of the utility model, wherein the DC-DC step-down circuit adopts an SGM2036S chip.

[0034] Please refer to Figure 4 The figure shows a circuit diagram of the FPC connector of the utility model, wherein the FPC connector adopts the AFC01-S24FCC-00 chip.

[0035] The utility model also provides an electronic product, which adopts the small camera module described in any of the above embodiments. The small camera module can expand multiple XIAO ESP32 S3 development boards, which is convenient for users to set up electronic products on this basis. It integrates audio recording, image recording, storage function, power management and other functions. The expansion connector is used to connect the secondary development board and expand peripherals, which enhances the expandability. It has the advantages of small size, short development cycle, low cost, strong versatility, etc., and is suitable for a variety of Internet of Things products.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A small camera module, characterized in that: Used to expand the XIAO ESP32 S3 development board, the small camera module includes: FPC connector, used to connect the camera; A microphone, for recording audio data; BTB connector, which is used to connect to the XIAO ESP32 S3 development board; Expansion connector, used to connect expansion peripherals; SD card connector, used to connect an SD card.

2. The small camera module according to claim 1, characterized in that: The small camera module includes a power module for supplying power to the small camera module.

3. The small camera module according to claim 2, characterized in that: The small camera module also includes a step-down circuit, which is connected to the power module and the FPC connector and is used to reduce the voltage of the power module to a preset voltage and then supply power to the FPC connector.

4. The small camera module according to claim 3, characterized in that: The step-down circuit includes a first step-down circuit and a second step-down circuit. The first step-down circuit reduces the voltage of the power module to a first voltage and then supplies power to the FPC connector. The second step-down circuit reduces the voltage of the power module to a second voltage and then supplies power to the FPC connector.

5. The small camera module according to claim 4, characterized in that: The small camera module also includes a power path management module, one end of which is connected to the power module, and the other end of which is connected to the step-down circuit.

6. The small camera module according to claim 5, characterized in that: The small camera module also includes a pull-up resistor, one end of which is connected to the power path management module, and the other end of which is respectively connected to the SD card connector and the BTB connector.

7. The small camera module according to claim 6, characterized in that: The small camera module also includes a universal data interface, a first cuttable pad and a second cuttable pad. The BTB connector is connected to the microphone through the data interface and the first cuttable pad. One end of the second cuttable pad is connected to the power path management module and the other end is connected to the pull-up resistor.

8. The small camera module according to claim 4, characterized in that: The first buck circuit and the second buck circuit are DC-DC buck circuits.

9. The small camera module according to claim 8, characterized in that: The DC-DC step-down circuit adopts the SGM2036S chip.

10. An electronic product, characterized in that: A small camera module comprising any one of claims 1-9.

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