Oled module supporting RS485, IIC and UART interfaces and electronic equipment

Abstract

The utility model discloses an oled module supporting RS485, IIC and UART interfaces and an electronic device, the module comprises an oled display screen, an MCU control module and a user interface module, the user interface module comprises an RS485 interface, an IIC interface and a UART interface, and the MCU control module is electrically connected with the oled display screen, a storage chip, the RS485 interface, the IIC interface and the UART interface respectively. The oled module provided by the utility model can be directly connected with an MCU (Microprogrammed Control Unit) with serial interfaces such as an IIC (Inter-Integrated Circuit) and a UART (Universal Asynchronous Receiver / Transmitter), a PLC (Programmable Logic Controller) with an RS485 interface and the like, and a user only needs to send a command to the oled module through the RS485 interface, the IIC interface or the UART interface, so that the functions of drawing and displaying can be realized; according to the utility model, the RS485 interface is included, so that stable long-distance communication and complex display control of the oled module are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of OLED, in particular to an OLED module and electronic equipment supporting RS485, IIC and UART interfaces. Background Art

[0002] OLED refers to organic light-emitting diodes or organic light-emitting displays. Due to its advantages of self-luminescence, thinness, wide viewing angle, and no smear, it has been widely used in recent years. However, existing OLED modules generally have problems such as a single communication interface, long-distance communication is susceptible to interference, and a single host (such as PLC) cannot control different OLED modules at the same time. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides an OLED module and an electronic device supporting RS485, IIC and UART interfaces to solve the above problems.

[0004] In the first aspect, the utility model provides an OLED module supporting RS485, IIC and UART interfaces, including an OLED display screen, an MCU control module and a user interface module, wherein the user interface module includes an RS485 interface, an IIC interface and a UART interface, and the MCU control module is electrically connected to the OLED display screen, the RS485 interface, the IIC interface and the UART interface respectively;

[0005] It also includes an RS485 communication module, which includes an RS485 communication chip with a model of MAX3485ESA; the RS485 communication chip is electrically connected to the MCU control module, the RS485 interface and the UART interface respectively; the 3rd pin of the RS485 interface and the UART interface is connected to the 1st pin of the RS485 communication chip; the 4th pin of the RS485 interface and the UART interface is connected to the 4th pin of the RS485 communication chip; the 5th pin of the RS485 interface and the UART interface is connected to the 6th pin of the RS485 communication chip; the 6th pin of the RS485 interface and the UART interface is connected to the 7th pin of the RS485 communication chip.

[0006] Preferably, the MCU control module includes a GD32F103RET6 main control chip.

[0007] Preferably, pins 3 and 4 of the IIC interface are connected to pins 29 and 30 of the MCU control module respectively.

[0008] Preferably, two screen FPC connectors are also included for connecting to the OLED display screen.

[0009] Preferably, it also includes a power module, which is respectively connected to the power input terminals of the OLED display screen, the MCU control module and the user interface module.

[0010] Preferably, the power module is provided with a 24V step-down module, a 12V step-up module and a 3.3V voltage stabilization module.

[0011] Preferably, it also includes a storage module, which is electrically connected to the MCU control module.

[0012] Preferably, the storage module includes a storage chip, and the model of the storage chip is GD25Q64ESIG.

[0013] In a second aspect, an electronic device comprises an OLED module supporting RS485, IIC and UART interfaces as described in the first aspect.

[0014] The beneficial effects of the utility model are embodied in:

[0015] The utility model provides an OLED module and electronic device supporting RS485, IIC and UART interfaces, which can be directly connected to MCU (such as single-chip microcomputer, AVR, PIC, DSP, ARM) with serial interfaces such as IIC and UART, and PLC with RS485 interface, etc., which greatly enriches the interface selection of users when developing products, and provides stable communication capability and control technology solutions. Users only need to send commands to the OLED module through RS485, IIC interface or UART interface to realize drawing and display functions; the RS485 interface included in the utility model enables the OLED module to realize stable long-distance communication and complex display control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 The schematic diagram of the circuit of the MCU control module of the embodiment of the utility model;

[0019] Figure 3 The circuit schematic diagram of the RS485 communication module of the utility model embodiment;

[0020] Figure 4A circuit schematic diagram of a storage module according to an embodiment of the present utility model;

[0021] Figure 5 The figure is a circuit diagram of a power module according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0024] like Figure 1 , Figure 2 As shown, the utility model provides an OLED module supporting RS485, IIC and UART interfaces, including an OLED display screen, an MCU control module and a user interface module, wherein the user interface module includes an RS485 interface, an IIC interface and a UART interface, and the MCU control module is electrically connected to the OLED display screen, the RS485 interface, the IIC interface and the UART interface, respectively. It also includes an RS485 communication module, which includes an RS485 communication chip, which is electrically connected to the MCU control module, the RS485 interface and the UART interface, respectively; and also includes a storage module, which includes a storage chip, which is electrically connected to the MCU control module. The MCU control module includes a GD32F103RET6 main control chip.

[0025] like Figure 3 The circuit schematic diagram of the RS485 communication module of the utility model embodiment; the RS485 communication module includes an RS485 communication chip MAX3485ESA, namely U4; Pin 1 of U4 is connected to Pin 43 of U3 through signal RS485_RX2; Pins 2 and 3 of U4 are connected to Pin 42 of U3 through signal RS485_CTRL2; Pin 4 of U4 is connected to Pin 42 of U3 through signal RS485_TX2; Pin 5 of U4 is grounded; Pin 6 of U4 is connected to Pin 4 85_A connects RS485 and pin 5 of UART user interface P1; pin 7 of U4 connects RS485 and pin 6 of UART user interface P1 through signal 485_B; one end of resistor R16 is connected to pin 6 of U4, and the other end is connected to pin 7 of U4; one end of capacitor C15 is connected to pin 8 of U4, and the other end is grounded; the cathode of diode D6 is connected to pin 7 of U4, and the positive electrode is grounded; the cathode of diode D7 is connected to pin 6 of U4, and the positive electrode is grounded; pin 8 of U4 is connected to power supply VCC_3V3.

[0026] like Figure 4 The circuit schematic diagram of the storage module of the embodiment of the utility model; the storage module includes a storage chip GD25Q64ESIG, namely IC1; the 1st pin of IC1 passes the signal Connect to pin 20 of U3; pin 2 of IC1 is connected to pin 22 of U3 through signal MISO; one end of resistor R10 is connected to pin 3 of IC1, and the other end is connected to power supply VCC_3V3; pin 4 of IC1 is grounded; pin 5 of IC1 is connected to pin 23 of U3 through signal MOSI; pin 6 of IC1 is connected to pin 21 of U3 through signal W25_CLK; one end of resistor R23 is connected to pin 7 of IC1, and the other end is connected to power supply VCC_3V3; pin 8 of IC1 is connected to power supply VCC_3V3; one end of capacitors C31 and C32 is connected to pin 8 of IC1, and the other end is grounded.

[0027] like Figure 5 The circuit schematic diagram of the power module of the embodiment of the utility model includes a 24V step-down module, a 12V step-up module and a 3.3V voltage regulator module, which are respectively connected to the power input terminals of the OLED display, the MCU control module and the user interface module;

[0028] The 24V step-down module includes a 24V step-down chip, namely U5. Pin 1 of U5 is connected to one end of capacitor C12, and the other end of capacitor C12 is connected to pin 6 of U5; pin 2 of U5 is grounded; pin 3 of U5 is connected to feedback signal FB; pin 4 of U5 is connected to one end of resistor R15, and the other end of resistor R15 is connected to pin 5 of U5; pin 5 of U5 is respectively connected to one end of resistor R27 and capacitor C16, the other end of capacitor C16 is grounded, the other end of resistor R27 is connected to VIN_5V, and then connected to one end of resistor R29. The other end of the resistor R29 is connected to the power input terminal VIN; the 6th pin of U5 is respectively connected to the cathode of the diode D4 and one end of the inductor L8, the anode of the diode D4 is grounded, the resistors R28, R14 and one end of the capacitors C14, C13 are connected to the other end of the inductor L8, the other end of the capacitor C13 is connected to the feedback signal FB, and then connected to one end of the resistor R13 with the other end of the resistor R14, the other ends of the resistor R13 and the capacitor C14 are grounded, and the other end of the resistor R28 is connected to the power input terminal VIN;

[0029] If resistor R28 is welded, and resistors R27 and R28 are not welded, then 5V is input to the power input terminal VIN;

[0030] If resistors R27 and R28 are welded, and resistor R29 is not welded, then 24V is input to the power input terminal VIN;

[0031] The 12V boost module includes a 12V boost chip, namely U1, model SSC2213GSA / YCXB, wherein pin 1 of U1 is respectively connected to the positive electrode of diode D5 and one end of inductor L1, and the negative electrode of diode D5 is connected to power supply VCC; pin 2 of U1 is grounded; pin 3 of U1 is respectively connected to one end of resistor R17 and resistor R18, the other end of resistor R17 is connected to power supply VCC, and the other end of resistor R18 is grounded; after electromotive force E4 and E5 are connected in parallel, the positive electrode is connected to power supply VCC, and the negative electrode is grounded; pin 4 of U1 is connected to pin 5, and then connected to the other end of inductor L1, capacitor C19, and one end of magnetic bead FB1, the other end of capacitor C19 is grounded, and the other end of magnetic bead FB1 is connected to power input terminal VIN;

[0032] The 3.3V voltage regulator module includes a 3.3V voltage regulator chip, namely U2, model ME6211C33M5G-N. Pin 1 of U2 is connected to the power input terminal VIN, and then connected to one end of capacitors C20 and C21 respectively, and the other ends of capacitors C20 and C21 are grounded; Pin 2 of U2 is grounded; Pin 3 of U2 is respectively connected to Pin 1 of U2 and one end of capacitor C24, and the other end of capacitor C24 is grounded; Pin 4 of U2 is suspended; After capacitors C22, C23, C28 and electromotive force E1 are connected in parallel, one end is connected to Pin 5 of U2 and power supply VCC_3V3, and the other end is grounded.

[0033] The utility model also includes two screen FPC connectors for connecting the OLED display screen.

[0034] It also includes a power module, which is respectively connected to the power input terminals of the OLED display screen, the MCU control module and the user interface module.

[0035] Based on the same inventive concept, an embodiment of the utility model further provides an electronic device, comprising the above-mentioned OLED module supporting RS485, IIC and UART interfaces.

[0036] The utility model provides an OLED module and electronic device supporting RS485, IIC and UART interfaces, which can be directly connected to MCU (such as single-chip microcomputer, AVR, PIC, DSP, ARM) with serial interfaces such as IIC and UART, and PLC with RS485 interface, etc., which greatly enriches the interface selection of users when developing products, and provides stable communication capability and control technology solutions. Users only need to send commands to the OLED module through RS485, IIC interface or UART interface to realize drawing and display functions; the RS485 interface included in the utility model enables the OLED module to realize stable long-distance communication and complex display control.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. An oled module supporting RS485, IIC and UART interfaces, characterized in that: It includes an OLED display screen, an MCU control module and a user interface module, wherein the user interface module includes an RS485 interface, an IIC interface and a UART interface, and the MCU control module is electrically connected to the OLED display screen, the RS485 interface, the IIC interface and the UART interface respectively; It also includes an RS485 communication module, which includes an RS485 communication chip with a model of MAX3485ESA; the RS485 communication chip is electrically connected to the MCU control module, the RS485 interface and the UART interface respectively; the 3rd pin of the RS485 interface and the UART interface is connected to the 1st pin of the RS485 communication chip; the 4th pin of the RS485 interface and the UART interface is connected to the 4th pin of the RS485 communication chip; the 5th pin of the RS485 interface and the UART interface is connected to the 6th pin of the RS485 communication chip; the 6th pin of the RS485 interface and the UART interface is connected to the 7th pin of the RS485 communication chip.

2. The oled module supporting RS485, IIC and UART interfaces according to claim 1, characterized in that: The MCU control module includes a GD32F103RET6 main control chip.

3. The oled module supporting RS485, IIC and UART interfaces according to claim 2, characterized in that: Pins 3 and 4 of the IIC interface are connected to pins 29 and 30 of the MCU control module respectively.

4. The oled module supporting RS485, IIC and UART interfaces according to claim 1, characterized in that: Also included are 2 screen FPC connectors for connecting to the oled display.

5. The oled module supporting RS485, IIC and UART interfaces according to claim 1, characterized in that: It also includes a power module, which is respectively connected to the power input terminals of the OLED display screen, the MCU control module and the user interface module.

6. The oled module supporting RS485, IIC and UART interfaces according to claim 5, characterized in that: The power module is provided with a 24V step-down module, a 12V step-up module and a 3.3V voltage stabilization module.

7. The oled module supporting RS485, IIC and UART interfaces according to claim 1, characterized in that, It also includes a storage module, which is electrically connected to the MCU control module.

8. The oled module supporting RS485, IIC and UART interfaces according to claim 7, characterized in that, The storage module includes a storage chip, and the model of the storage chip is GD25Q64ESIG.

9. An electronic device, characterized in that: An OLED module supporting RS485, IIC and UART interfaces comprising any one of claims 1-8.

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