CN215815130U - CAN interface OLED display screen - Google Patents
CAN interface OLED display screen Download PDFInfo
- Publication number
- CN215815130U CN215815130U CN202121852128.2U CN202121852128U CN215815130U CN 215815130 U CN215815130 U CN 215815130U CN 202121852128 U CN202121852128 U CN 202121852128U CN 215815130 U CN215815130 U CN 215815130U
- Authority
- CN
- China
- Prior art keywords
- resistor
- capacitor
- oled display
- display screen
- control mcu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The utility model provides a CAN interface OLED display screen which comprises a master control MCU, a DC-DC booster circuit and a CAN input circuit, wherein the CAN input circuit is connected with the master control MCU; and the signal end of the OLED display screen is connected with the main control MCU, and the power end of the OLED display screen is connected with the DC-DC booster circuit. According to the CAN interface OLED display screen, the CAN interface is adopted for control on the OLED display screen through the ingenious design, the interfaces are fewer, the control is simple, the anti-interference performance is good, the debugging and the testing are convenient, and a large amount of development time is saved.
Description
Technical Field
The utility model relates to the technical field of OLED display screens, in particular to a CAN interface OLED display screen.
Background
The conventional OLED display screen interface generally adopts 8080 parallel port or 6800 parallel port time sequence, is inconvenient to control under the condition of few control interface lines, and is restricted in application under the interference environment due to the parallel port time sequence.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, an object of the present invention is to provide a CAN interface OLED display screen, which is used to solve the problems of more control interfaces and poor interference immunity in the prior art.
In order to solve the technical problem, the utility model is realized as follows: a CAN interface OLED display screen comprises a main control MCU, a DC-DC booster circuit and a CAN input circuit, wherein the CAN input circuit is connected with the main control MCU; and the signal end of the OLED display screen is connected to the main control MCU, and the power end of the OLED display screen is connected to the DC-DC booster circuit.
Further, the CAN input circuit comprises a CAN transceiver, a first capacitor, a first electrolytic capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor; one ends of the first resistor and the second resistor are respectively connected with one end of the first capacitor, one end of the first electrolytic capacitor and a power supply end of the CAN transceiver, and the other ends of the first resistor and the second resistor are respectively connected with power supply voltage; the other ends of the first capacitor and the first electrolytic capacitor are respectively grounded; one end of the third resistor is connected to a signal receiving end of the CAN transceiver, and the other end of the third resistor is connected to a CAN signal receiving end of the master control MCU; one end of the fourth resistor is connected to the CANH end of the CAN transceiver, one end of the fifth resistor and the CANH signal end of the main control MCU respectively, and the other end of the fourth resistor is connected to the CANL end of the CAN transceiver, the other end of the fifth resistor and the CANL signal end of the main control MCU respectively.
Further, the RS end of the CAN transceiver is connected to the signal end of the main control MCU through a slope resistor.
Further, the DC-DC booster circuit comprises a booster IC chip, an inductor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a second electrolytic capacitor, a third electrolytic capacitor, a sixth resistor, a seventh resistor and an eighth resistor; the SHDN end of the boost IC chip is connected to one end of the sixth resistor, the SS end of the boost IC chip is connected to one end of the third capacitor, and the FB end of the boost IC chip is connected to one end of the seventh resistor; the other end of the sixth resistor, one end of the second capacitor, one end of the second electrolytic capacitor and the IN end of the boosting IC chip are respectively connected with power supply voltage; one end of the inductor is connected to the IN end of the boost IC chip, and the other end of the inductor is connected to the LX end of the boost IC chip; one end of the eighth resistor is connected to one end of the seventh resistor, and the fourth capacitor is connected in parallel to two ends of the seventh resistor; the other end of the eighth resistor, one end of the third electrolytic capacitor and one end of the fifth capacitor are respectively connected to the other end of the inductor; and the other ends of the second electrolytic capacitor, the second capacitor, the third capacitor, the seventh resistor, the third electrolytic capacitor and the fifth capacitor are respectively grounded.
Further, a voltage stabilizing diode is connected in series between the other end of the inductor and the other end of the eighth resistor.
As described above, according to the CAN interface OLED display screen, the CAN interface is adopted for controlling the OLED display screen through the ingenious design, the interfaces are fewer, the control is simple, the anti-interference performance is good, the debugging and the testing are convenient, and a large amount of development time is saved.
Drawings
FIG. 1 is a schematic structural diagram of an OLED display screen with a CAN interface according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a CAN input circuit of a CAN interface OLED display screen according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a DC-DC boost circuit of a CAN interface OLED display panel according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1 to 3, the present invention provides a CAN interface OLED display panel, which includes a main control MCU, a DC-DC boost circuit and a CAN input circuit, wherein a signal of the main control MCU is STM32F103RBT 6. The CAN input circuit is connected with the main control MCU. And the signal end of the OLED display screen is connected with the main control MCU, and the power end of the OLED display screen is connected with the DC-DC booster circuit.
The CAN input circuit comprises a CAN transceiver U4, a first capacitor C1, a first electrolytic capacitor P1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a fifth resistor R5, wherein the model of the CAN transceiver U4 is SN65HVD 230. One ends of a first resistor R1 and a second resistor R2 are respectively connected with one end of a first capacitor C1, one end of a first electrolytic capacitor P1 and a power supply end VCC of a CAN transceiver U4, the other ends of the first resistor R1 and the second resistor R2 are respectively connected with power supply voltage, and the power supply is 3.3V. The other ends of the first capacitor C1 and the first electrolytic capacitor P1 are respectively grounded. One end of the third resistor R3 is connected to the signal receiving end R of the CAN transceiver U4, and the other end of the third resistor R3 is connected to the CAN signal receiving end of the main control MCU. One end of the fourth resistor R4 is connected to the CANH terminal of the CAN transceiver U4, one end of the fifth resistor R5, and the CANH signal terminal of the main control MCU, respectively, and the other end of the fourth resistor R4 is connected to the CANL terminal of the CAN transceiver U4, the other end of the fifth resistor R5, and the CANL signal terminal of the main control MCU, respectively.
The RS end of the CAN transceiver U4 is connected to the signal end of the main control MCU through a slope resistor, so that the electromagnetic interference caused by the rapid rise of the level CAN be reduced, and the anti-interference performance is increased.
The DC-DC booster circuit comprises a booster IC chip U7, an inductor L1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a second electrolytic capacitor P2, a third electrolytic capacitor P3, a sixth resistor R6, a seventh resistor R7 and an eighth resistor R8, wherein the model of the booster IC chip U7 is AICI896 GG. The SHDN end of the boost IC chip U7 is connected to one end of the sixth resistor R6, the SS end of the boost IC chip U7 is connected to one end of the third capacitor C3, and the FB end of the boost IC chip U7 is connected to one end of the seventh resistor R7. The other end of the sixth resistor R6, one end of the second capacitor C2, one end of the second electrolytic capacitor P2 and the IN end of the boosting IC chip U7 are respectively connected with a power supply voltage, and the power supply voltage is 3.3V. One end of the inductor L1 is connected to the IN terminal of the boost IC chip U7, and the other end of the inductor L1 is connected to the LX terminal of the boost IC chip U7. One end of the eighth resistor R8 is connected to one end of the seventh resistor R7, and the fourth capacitor C4 is connected in parallel to both ends of the seventh resistor R7. The other end of the eighth resistor R8, one end of the third electrolytic capacitor P3 and one end of the fifth capacitor C5 are connected to the other end of the inductor L1 respectively. The other ends of the second electrolytic capacitor P2, the second capacitor C2, the third capacitor C3, the seventh resistor R7, the third electrolytic capacitor P3 and the fifth capacitor C5 are respectively grounded.
A zener diode D1 is connected in series between the other end of the inductor L1 and the other end of the eighth resistor R8, and plays a role in stabilizing the output voltage 12V.
The DC-DC booster circuit converts an input 3.3V power supply into a 12V power supply suitable for the OLED display screen, and outputs the 12V power supply to the OLED display screen from an output end VOUT. The CAN input circuit is converted into TTL level output through the main control MCU, the data transmission rate is high, and 1Mbps is achieved.
In conclusion, the CAN interface OLED display screen adopts the CAN interface control on the OLED display screen through the ingenious design, has fewer interfaces, is simple to control, has good anti-interference performance, is convenient to debug and test, and saves a large amount of development time. Therefore, the utility model effectively overcomes various defects in the prior art and achieves better practical effect.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a CAN interface OLED display screen which characterized in that: the controller comprises a main control MCU, a DC-DC booster circuit and a CAN input circuit, wherein the CAN input circuit is connected with the main control MCU; and the signal end of the OLED display screen is connected to the main control MCU, and the power end of the OLED display screen is connected to the DC-DC booster circuit.
2. The CAN interface OLED display of claim 1, wherein: the CAN input circuit comprises a CAN transceiver, a first capacitor, a first electrolytic capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor; one ends of the first resistor and the second resistor are respectively connected with one end of the first capacitor, one end of the first electrolytic capacitor and a power supply end of the CAN transceiver, and the other ends of the first resistor and the second resistor are respectively connected with power supply voltage; the other ends of the first capacitor and the first electrolytic capacitor are respectively grounded; one end of the third resistor is connected to a signal receiving end of the CAN transceiver, and the other end of the third resistor is connected to a CAN signal receiving end of the master control MCU; one end of the fourth resistor is connected to the CANH end of the CAN transceiver, one end of the fifth resistor and the CANH signal end of the main control MCU respectively, and the other end of the fourth resistor is connected to the CANL end of the CAN transceiver, the other end of the fifth resistor and the CANL signal end of the main control MCU respectively.
3. The CAN interface OLED display of claim 2, wherein: and the RS end of the CAN transceiver is connected with the signal end of the main control MCU through a slope resistor.
4. The CAN interface OLED display of claim 1, wherein: the DC-DC booster circuit comprises a booster IC chip, an inductor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a second electrolytic capacitor, a third electrolytic capacitor, a sixth resistor, a seventh resistor and an eighth resistor; the SHDN end of the boost IC chip is connected to one end of the sixth resistor, the SS end of the boost IC chip is connected to one end of the third capacitor, and the FB end of the boost IC chip is connected to one end of the seventh resistor; the other end of the sixth resistor, one end of the second capacitor, one end of the second electrolytic capacitor and the IN end of the boosting IC chip are respectively connected with power supply voltage; one end of the inductor is connected to the IN end of the boost IC chip, and the other end of the inductor is connected to the LX end of the boost IC chip; one end of the eighth resistor is connected to one end of the seventh resistor, and the fourth capacitor is connected in parallel to two ends of the seventh resistor; the other end of the eighth resistor, one end of the third electrolytic capacitor and one end of the fifth capacitor are respectively connected to the other end of the inductor; and the other ends of the second electrolytic capacitor, the second capacitor, the third capacitor, the seventh resistor, the third electrolytic capacitor and the fifth capacitor are respectively grounded.
5. The CAN interface OLED display of claim 4, wherein: and a voltage stabilizing diode is connected in series between the other end of the inductor and the other end of the eighth resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121852128.2U CN215815130U (en) | 2021-08-10 | 2021-08-10 | CAN interface OLED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121852128.2U CN215815130U (en) | 2021-08-10 | 2021-08-10 | CAN interface OLED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215815130U true CN215815130U (en) | 2022-02-11 |
Family
ID=80129596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121852128.2U Active CN215815130U (en) | 2021-08-10 | 2021-08-10 | CAN interface OLED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215815130U (en) |
-
2021
- 2021-08-10 CN CN202121852128.2U patent/CN215815130U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105388805A (en) | SPI (Serial Peripheral Interface) bus-based measurement control system | |
| CN215815130U (en) | CAN interface OLED display screen | |
| CN203673803U (en) | Signal source switching circuit for liquid crystal module testing, and liquid crystal module test tool | |
| CN114200202B (en) | Metering circuit and electricity taking method and medium thereof | |
| CN205247119U (en) | Gradual signal real -time supervision device of low frequency | |
| CN213303014U (en) | IOT device sharing SPI interface | |
| CN209562574U (en) | A kind of NTB card | |
| CN205608716U (en) | Multiunit optical module communication interface switching circuit | |
| CN209543335U (en) | A kind of circuit of the address HRP-configured slave device I2C | |
| CN210518267U (en) | Low-rate level conversion circuit | |
| CN207339648U (en) | A kind of voltage conversion circuit for Internet of Things single-site data acquisition | |
| CN220381572U (en) | Touch screen control circuit | |
| CN202488156U (en) | USB interface power supply control converter | |
| CN206948675U (en) | A kind of automobile belt LIN controls brightness regulation atmosphere lamp circuit structure | |
| CN208000569U (en) | A kind of digital quantity input/output unit based on expansible serial bus system | |
| CN110266180A (en) | A kind of integrated power supply circuit applied to radar transceiver | |
| CN210958336U (en) | Anti-interference signal board card | |
| CN209044586U (en) | A kind of OCP adapter power supply circuit | |
| CN218333092U (en) | Ink screen wireless control's electron table tablet | |
| CN217543834U (en) | USB interface changes giga net gape extension device | |
| CN210781155U (en) | HDMI changes net twine extension equipment | |
| CN204044571U (en) | The conversion equipment of a kind of RS232 bus and DALI bus | |
| CN221042892U (en) | Digital bus communication equipment | |
| CN219875770U (en) | Network port communication circuit | |
| CN218888718U (en) | Wireless data transmission device for intelligent torque wrench and intelligent torque wrench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |