CN208317063U - A kind of single-chip microcontroller control RS-485 transmitting line - Google Patents
A kind of single-chip microcontroller control RS-485 transmitting line Download PDFInfo
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- CN208317063U CN208317063U CN201820755638.XU CN201820755638U CN208317063U CN 208317063 U CN208317063 U CN 208317063U CN 201820755638 U CN201820755638 U CN 201820755638U CN 208317063 U CN208317063 U CN 208317063U
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- chip microcontroller
- transmitting line
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Abstract
The utility model discloses a kind of single-chip microcontrollers to control RS-485 transmitting line, including single-chip microcontroller and several RS-485 transmitting line units, the single-chip microcontroller has a serial ports position and I/O mouthfuls several, each RS-485 transmitting line unit includes a RS-485 chip, several the I/O mouthfuls connect one to one with several RS-485 chips, the serial ports position includes a R485 input interface and a R485 output interface, 1 foot of each RS-485 chip is connect with the R485 output interface, 4 feet of each RS-485 chip are connect with the R485 input interface.Multiple RS-485 transmitting line units can be controlled with a single-chip microcontroller, to improve end bringing onto load amount.
Description
Technical field
The utility model relates to RS-485 transmitting line technical fields, it particularly relates to which a kind of single-chip microcontroller controls RS-
485 transmitting lines.
Background technique
In existing LED lamp, some are to connect RS-485 transmitting line unit by single-chip microcontroller to control to LED light
System, and the common model PIC16F18854 of single-chip microcontroller in LED lamp, the single-chip microcontroller of this model only have a serial ports
Position, be typically only capable to a RS-485 chip communication, and a RS-485 chip connection LED light limited amount, if LED light
Quantity it is more, can not just be completed by a single-chip microcontroller.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Utility model content
For above-mentioned technical problem in the related technology, the utility model proposes a kind of single-chip microcontroller control RS-485 to send electricity
Road can control multiple RS-485 transmitting line units with a single-chip microcontroller.
To realize the above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of single-chip microcontroller control RS-485 transmitting line, including single-chip microcontroller and several RS-485 transmitting line units, institute
Single-chip microcontroller is stated with a serial ports position and I/O mouthful several, each RS-485 transmitting line unit includes a RS-485 core
Piece, several described I/O mouthfuls connect one to one with several RS-485 chips, and the serial ports position includes that a R485 input connects
Mouth and a R485 output interface, 1 foot of each RS-485 chip are connect with the R485 output interface, each described
4 feet of RS-485 chip are connect with the R485 input interface.
Further, 17 feet of the single-chip microcontroller are R485 input interface, and 18 feet of the single-chip microcontroller are that R485 output connects
Mouthful.
Further, the quantity of the RS-485 transmitting line unit is four.
Further, the output end of each RS-485 transmitting line unit is connected with LED light by connector.
Further, the RS-485 transmitting line unit further includes common mode inductance and electrostatic suppression circuit.
The utility model has the beneficial effects that multiple RS-485 transmitting line units can be controlled with a single-chip microcontroller, to mention
High end bringing onto load amount.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the schematic diagram of the single-chip microcontroller according to the utility model embodiment；
Fig. 2 is the schematic diagram one of the RS-485 transmitting line unit according to the utility model embodiment；
Fig. 3 is the schematic diagram two of the RS-485 transmitting line unit according to the utility model embodiment；
Fig. 4 is the schematic diagram three of the RS-485 transmitting line unit according to the utility model embodiment；
Fig. 5 is the schematic diagram four of the RS-485 transmitting line unit according to the utility model embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figs. 1-5, a kind of single-chip microcontroller control RS-485 transmitting line, packet according to the utility model embodiment
Single-chip microcontroller and several RS-485 transmitting line units are included, the single-chip microcontroller has a serial ports position and I/O mouthfuls several, Mei Gesuo
Stating RS-485 transmitting line unit includes a RS-485 chip, and several described I/O mouthful and several RS-485 chips are one by one
It is correspondingly connected with, the serial ports position includes a R485 input interface and a R485 output interface, each RS-485 chip
1 foot connect with the R485 output interface, 4 feet of each RS-485 chip are connect with the R485 input interface.
In a specific embodiment of the utility model, 17 feet of the single-chip microcontroller are R485 input interface, the list
18 feet of piece machine are R485 output interface.
In a specific embodiment of the utility model, the quantity of the RS-485 transmitting line unit is four.
In a specific embodiment of the utility model, the output end of each RS-485 transmitting line unit passes through
Connector is connected with LED light.
In a specific embodiment of the utility model, the RS-485 transmitting line unit further include common mode inductance and
Electrostatic suppression circuit.
In order to facilitate the above-mentioned technical proposal for understanding the utility model, below by way of specifically used mode to the utility model
Above-mentioned technical proposal be described in detail.
RS-485 transmitting line unit includes sequentially connected RS-485 chip, common mode inductance and electrostatic suppression circuit, quiet
The output end of electric suppression circuit connects connector, and connector connects LED light or other loads.
The utility model is by 1 MCU driving, 4 RS-485 chips, to improve end bringing onto load (i.e. LED light) amount
, 17 feet on single-chip microcontroller are R485 input interface (i.e. R485 IN), and 18 feet on the single-chip microcontroller are R485 output interface
(i.e. R485 OUT) connect after 1 foot of 4 RS-485 chips is in parallel with R485 output interface, after 4 feet of 4 chips are in parallel and
The connection of R485 input interface, 4 I/O mouthfuls of single-chip microcontroller connect one to one with 4 RS-485 chips, when I/O mouthfuls of high level, RS-
485 chips are in transmission state.
In conclusion by means of the above-mentioned technical proposal of the utility model multiple RS-485 can be controlled with a single-chip microcontroller
Transmitting line unit, to improve end bringing onto load amount.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of single-chip microcontroller controls RS-485 transmitting line, which is characterized in that send electricity including single-chip microcontroller and several RS-485
Road unit, the single-chip microcontroller have a serial ports position and I/O mouthful several, and each RS-485 transmitting line unit is including one
RS-485 chip, several described I/O mouthfuls connect one to one with several RS-485 chips, and the serial ports position includes one
1 foot of R485 input interface and a R485 output interface, each RS-485 chip is connect with the R485 output interface,
4 feet of each RS-485 chip are connect with the R485 input interface.
2. single-chip microcontroller according to claim 1 controls RS-485 transmitting line, which is characterized in that 17 feet of the single-chip microcontroller
For R485 input interface, 18 feet of the single-chip microcontroller are R485 output interface.
3. single-chip microcontroller according to claim 1 controls RS-485 transmitting line, which is characterized in that the RS-485 sends electricity
The quantity of road unit is four.
4. single-chip microcontroller according to claim 1 controls RS-485 transmitting line, which is characterized in that each RS-485 hair
The output end of circuit unit is sent to be connected with LED light by connector.
5. single-chip microcontroller according to claim 1 controls RS-485 transmitting line, which is characterized in that the RS-485 sends electricity
Road unit further includes common mode inductance and electrostatic suppression circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755638.XU CN208317063U (en) | 2018-05-21 | 2018-05-21 | A kind of single-chip microcontroller control RS-485 transmitting line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755638.XU CN208317063U (en) | 2018-05-21 | 2018-05-21 | A kind of single-chip microcontroller control RS-485 transmitting line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208317063U true CN208317063U (en) | 2019-01-01 |
Family
ID=64715853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820755638.XU Active CN208317063U (en) | 2018-05-21 | 2018-05-21 | A kind of single-chip microcontroller control RS-485 transmitting line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208317063U (en) |
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2018
- 2018-05-21 CN CN201820755638.XU patent/CN208317063U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200729 Address after: R & D Building 1, Fuma Zhiying science and Technology Park, 398 Yanghu Road, Ma'anshan economic and Technological Development Zone, Anhui Province Patentee after: Anhui JinShengDa bioelectronics Technology Co., Ltd Address before: 102200, Changping District, Beijing science and Technology Park, 27 innovation road, building 2, 2 Patentee before: Golden Scorpion Co.,Ltd. |