CN205566298U - A BLE4. 0 module for UART communication sleep awakens up - Google Patents
A BLE4. 0 module for UART communication sleep awakens up Download PDFInfo
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- CN205566298U CN205566298U CN201520869601.6U CN201520869601U CN205566298U CN 205566298 U CN205566298 U CN 205566298U CN 201520869601 U CN201520869601 U CN 201520869601U CN 205566298 U CN205566298 U CN 205566298U
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Abstract
The utility model discloses a BLE4.0 module for UART communication sleep awakens up, it is including UART and bluetooth chip, and UART's RX pin links together with the pin that awakens up of bluetooth chip, directly utilizes current pin through this module of this mode, does not increase IO quantity and just can realize awakeing up the function, has simplified the step and the structure of MCU and the communication of bluetooth module, sparingly the MCU resource.
Description
Technical field
The utility model belongs to field of wireless transmission, particularly to a kind of low-power consumption Bluetooth technology.
Background technology
Low-power consumption Bluetooth technology (BLE4.0) is a kind of brand-new technology, selects the developing direction increasing message transmission rate different from classical bluetooth, and it is to be optimized in terms of reducing power consumption as far as possible.It is to reduce the average operating current of entirety by making Bluetooth chip indirectly work that BLE4.0 reduces the notable method of power consumption.No matter bluetooth module is in broadcast or connection status, and Bluetooth chip all converts between work, sleep two states.Owing to Bluetooth chip is in indirect duty, when MCU sends data by universal asynchronous receiving-transmitting transmitter UART (Universal Asynchronous Receiver/Transmitter) to bluetooth module, must first wake up Bluetooth chip up, guarantee that Bluetooth chip is in running order, data could be sent to UART afterwards, otherwise there will be the situation of UART loss of data.
At present, wake up the mode of bluetooth module on the market up, be all by increasing an I/O port, when needs send data by UART to bluetooth module, Bluetooth chip is waken up up, as it is shown in figure 1, retransmit data afterwards by IO being drawn high (or dragging down) a period of time.This mode not only makes communicating step between MCU and bluetooth module become loaded down with trivial details, and adds IO quantity, and the product nervous for script I/O resource is extremely disadvantageous.Study carefully its because of, be because BLE4.0 module and MCU when carrying out data transmission, MCU needs to first pass through an IO and wakes up bluetooth module up, it is ensured that bluetooth module, not at sleep state, thus wastes MCU resource, adds the complexity of data transmission.
Utility model content
Therefore, being to provide a kind of BLE4.0 module for UART communication sleep awakening, this module, it can be avoided that increase IO quantity, simplifies the step of MCU and bluetooth module communication, saves MCU resource primary mesh of the present utility model.
Being to provide a kind of BLE4.0 module for UART communication sleep awakening, this modular structure is simple another mesh of the present utility model, it is easy to accomplish, can be widely applied in existing bluetooth communication.
In order to realize the above object, the utility model application provides a kind of BLE4.0 wake-up mode, mainly includes that on hardware, bluetooth module pin is changed and adds wakeup byte two parts on software, on hardware.
For achieving the above object, the technical solution of the utility model is:
A kind of BLE4.0 module for UART communication sleep awakening, it includes UART and Bluetooth chip, it is characterized in that the RX pin of Bluetooth chip UART links together with the pin that wakes up up of Bluetooth chip, existing pin is directly utilized by this module of which, do not increase IO quantity and achieve that arousal function, simplify MCU and the step of bluetooth module communication and structure, save MCU resource.
Further, described Bluetooth chip, for Bluetooth chip CSU8DL3510.
The BLE4.0 module wake-up mode that the utility model realizes, can avoid increasing IO quantity, simplify the step of MCU and bluetooth module communication, save MCU resource.And realize simplicity, with low cost.
Accompanying drawing explanation
Fig. 1 is the structure chart that prior art is implemented.
Fig. 2 is the structural representation that the utility model is implemented.
Fig. 3 is the circuit diagram that the utility model is implemented.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the utility model, is not used to limit the utility model.
See accompanying drawing 2, for implementation of the present utility model, by the RX pin of bluetooth module UART with wake up pin up and linked together by PCB trace.By kind of a mode, it is possible to send data by UART and wake up Bluetooth chip up, thus I/O port need not be arranged, save MCU and wake up pin up.
As a example by Bluetooth chip CSU8DL3510, P3.0 connects the RX pin of UART, and the two pin, for waking up pin up, is linked together during application, the most as shown in Figure 3 by P3.2.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (2)
1., for a BLE4.0 module for UART communication sleep awakening, it includes UART and Bluetooth chip, it is characterised in that the RX pin of UART links together with the pin that wakes up up of Bluetooth chip.
2. the BLE4.0 module for UART communication sleep awakening as claimed in claim 1, it is characterised in that described Bluetooth chip is Bluetooth chip CSU8DL3510.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869601.6U CN205566298U (en) | 2015-11-03 | 2015-11-03 | A BLE4. 0 module for UART communication sleep awakens up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869601.6U CN205566298U (en) | 2015-11-03 | 2015-11-03 | A BLE4. 0 module for UART communication sleep awakens up |
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| CN205566298U true CN205566298U (en) | 2016-09-07 |
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| CN201520869601.6U Active CN205566298U (en) | 2015-11-03 | 2015-11-03 | A BLE4. 0 module for UART communication sleep awakens up |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589824A (en) * | 2017-09-21 | 2018-01-16 | 上海顺舟智能科技股份有限公司 | It is a kind of to reduce the method for only supporting IO to wake up MCU power consumptions |
| CN110190868A (en) * | 2019-05-28 | 2019-08-30 | 高新兴物联科技有限公司 | Wake-up circuit and IoT device |
-
2015
- 2015-11-03 CN CN201520869601.6U patent/CN205566298U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589824A (en) * | 2017-09-21 | 2018-01-16 | 上海顺舟智能科技股份有限公司 | It is a kind of to reduce the method for only supporting IO to wake up MCU power consumptions |
| CN107589824B (en) * | 2017-09-21 | 2021-02-26 | 上海顺舟智能科技股份有限公司 | Method for reducing power consumption of MCU only supporting IO wakeup |
| CN110190868A (en) * | 2019-05-28 | 2019-08-30 | 高新兴物联科技有限公司 | Wake-up circuit and IoT device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 Nanhai Avenue, Nanshan District, Shenzhen City, Guangdong Province, 1079 Garden City Digital Building, Block A, 901A Patentee after: Chipsea Technology (Shenzhen) Co., Ltd. Address before: 518067 Nanshan District, Shenzhen, Nanhai Avenue, garden city, No. 1079, building A, block, floor 9 Patentee before: Xinhai Science and Technology Co., Ltd., Shenzhen City |
|
| CP03 | Change of name, title or address |