CN208433101U - A kind of novel remote controller control circuit - Google Patents
A kind of novel remote controller control circuit Download PDFInfo
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- CN208433101U CN208433101U CN201821191330.3U CN201821191330U CN208433101U CN 208433101 U CN208433101 U CN 208433101U CN 201821191330 U CN201821191330 U CN 201821191330U CN 208433101 U CN208433101 U CN 208433101U
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Abstract
In order to solve the defect of existing infrared remote control, the utility model uses based on JD0068 chip, it is proposed a kind of remote control control circuit based on 2.4G chip, it includes key circuit, MCU, 2.4G chip JD0068, crystal oscillator oscillating circuit and antenna E1, wherein matrix press-key circuit is connected with MCU, and MCU reads the control signal of matrix press-key circuit；2.4G chip JD0068 accesses crystal oscillator oscillating circuit by pin, and basic clock signal is provided for system；2.4 chip JD0068 generate communication by I2C communications protocol and MCU, continuously transmit or discontinuously send the radiofrequency signal of a variety of different control data in fixed frequency according to order to 2.4G chip JD0068,2.4G chip JD0068 by MCU sending control command；Meanwhile 2.4G chip JD0068 accesses electric wire by pin, and radiofrequency signal is enhanced and propagated.
Description
Technical field
The utility model relates to 2.4G wireless technical fields, more specifically, being related to a kind of based on the distant of 2.4G chip
Control device control circuit
Background technique
Currently, remote controler on the market is largely IR remote controller, IR remote controller passes through infrared light emission signal, by
In the inherent characteristic of infrared light itself, so that the remote control distance of IR remote controller is relatively short, IR remote controller under normal conditions
Remote control distance at most can only achieve 8 meters；In addition the penetration capacity of infrared light is weaker, and infrared light can generate decaying in air,
And infrared light can not penetrate as long as encountering lighttight object, allowing for IR remote controller in this way can not effective signal radiated；
And infrared transmission is one-way transmission, so general IR remote controller only has signal transmission function, without signal
Receive function.
Relative to infrared ray electric magnetic wave data-transmission technology, had such as using application of the 2.4G wireless technology in remote controler
Lower advantage: (1) distance that can be remotely controlled using the high frequency radio signal of 2.4G is longer, far beyond 8 meters: (2) are due to work
Frequency range is between 2.400GHz~2.4835GHz, enables 2.4G high frequency radio signal longer in the distance of control
In the case of, also there is certain penetration power, it is not easy to receive interference；(3) 2.4G wireless technology is accomplished that bi-directional high-rate data
Transmission, so only needing to install a 2.4G module in remote controler or 2.4G chip can be achieved with the interaction of data.So
Practical 2.4G module is developed, and by 2.4G module application to field of remote-control unit is trend of the times.
JD0068 is single-chip integration radio transmitting and receiving chip of a work in the general ISM band in the world 2.4GHz.The chip
It is integrated with the functional modules such as radio frequency receiver, radiofrequency launcher, rf integration device, GFSK modulator, GFSK demodulator.Pass through
I2C interface can to output power, channel selection and agreement carry out flexible configuration, and built-in CRC, FEC, automatic-answering back device and
Automatic retransmission mechanism, the system that can greatly simplify design and optimize performance.Peripheral circuit is simple, and need to only arrange in pairs or groups few passive device
Part can reach excellent transmitting-receiving performance.
Utility model content
In view of this, the utility model proposes a kind of novel remote controller control circuit using based on JD0068 chip,
Including key circuit, MCU, 2.4G chip JD0068, crystal oscillator oscillating circuit and antenna E1, wherein matrix press-key circuit and MCU phase
Even, MCU reads the control signal of matrix press-key circuit；2.4G chip JD0068 accesses crystal oscillator oscillating circuit by pin, to be
System provides basic clock signal；2.4 chip JD0068 generate communication by I2C communications protocol and MCU, are issued and are controlled by MCU
It orders and continuously transmits or discontinuously send a variety of in fixed frequency according to order to 2.4G chip JD0068,2.4G chip JD0068
The radiofrequency signal of different control data；Meanwhile 2.4G chip JD0068 accesses electric wire by pin, simultaneously by radiofrequency signal enhancing
It propagates.Using the utility model proposes the remote control control circuit based on 2.4G chip, open field communication distance can be with
Greater than 80 meters, and signal stabilization, it is not easy to receive interference.
A kind of novel remote controller control circuit comprising: key circuit, MCU, 2.4G chip JD0068, crystal oscillator oscillation electricity
Road, antenna E1, it is characterised in that: the connection of the I/O port of key circuit and MCU is read by MCU, in preservation and analysis button circuit
Switching signal；2.4G chip JD0068 includes 8 pins, wherein pin 1 (XO) and pin 2 (XI) for connecting crystal oscillator oscillation electricity
Road；Pin 7 (SDA), pin 6 (SCL) and pin 5 (CS) be I2C interface, for connecting the I2C interface of MCU so that MCU with
2.4G chip generates communication；Pin 4 (ANT) is rf input interface, for connecting antenna；Pin 8 (VCC) is for connecting electricity
Source, pin 3 (VSS) ground connection；MCU is connect by I2C interface with 2.4G chip JD0068, a portion pin access of MCU
Power supply, a part of pin access ground.
Further, the pin 1 (XO) of 2.4G chip JD0068 is crystal oscillator output interface, 2.4G chip JD0068
Pin 2 (XI) be crystal oscillator input interface, be connected respectively with two pins of crystal oscillator.
Further, the crystal oscillator of 12MHz is used in crystal oscillator oscillating circuit.
Further, the working frequency of 2.4G chip JD0068 is 2402MHz~2530MHz, totally 128 channels, can
Fast channel switching, supports frequency modulation algorithm.
Further, MCU selects the single-chip microcontroller of model JWTMU14A.
Further, the operating voltage of 2.4G chip JD0068 is 1.9V~3.6V, the work electricity of single-chip microcontroller JWTMU14A
Pressure is 2V~5.5V.
Further, the key circuit of remote controler selects matrix press-key circuit.
Further, when key circuit selection matrix key circuit, comprising there are two output pins in MCU
(SCAN), matrix press-key circuit is given for issuing scanning signal respectively, and will be after scanning by multiple input terminal pins (COM)
Signal feeds back to MCU, analyzes and determines to be specifically which is closed the switch by MCU.
Further, in MCU comprising two output pin SCAN1 and SCAN2 and four input terminal pin COM1,
COM2, COM3 and COM4, wherein output pin SCAN1 is by being connected to input terminal pin after connection to switch S1
COM1, input terminal pin SCAN1 are connected to input terminal pin COM2, input terminal pin after passing through connection to switch S2
SCAN1 is connected to input terminal pin COM3 after passing through connection to switch S3, and input terminal pin SCAN1 is arrived by connection
Input terminal pin COM4 is connected to after switch S4, output pin SCAN2 is connected to input after passing through connection to switch S5
It is connected to input terminal pin COM2 after holding pin COM1, input terminal pin SCAN2 to pass through connection to switch S6, input terminal draws
Foot SCAN2 is connected to input terminal pin COM3 by connection to switch S7, and input terminal pin SCAN2 is arrived by connection
Input terminal pin 4 is connected to after switch S8.
Further, it can be attached by connector between switch S1~S8 and input terminal pin COM1~COM4.
Novel remote controller control circuit as described above, its working principle is that:
It is powered on first by power circuit block to MCU and 2.4G chip JD0068.
Then, two the output pins SCAN1 and SCAN2 of MCU export scanning signal, with two states, respectively
For " 01 " and " 10 ".In " 01 " state, output pin SCAN1 exports low level, the high electricity of output pin SCAN2 output
It is flat, if switch S1 is closed, input terminal pin COM1 will be made to be grounded, that is, input terminal pin COM1 inputs a low electricity
Ordinary mail number, then MCU judges switch S1 closure, that is, the key corresponding to switch S1 is pressed, if input terminal pin COM2
A low level signal is inputted, then shows that the key corresponding to switch S2 is pressed；And so on, it is defeated in " 10 " state
Outlet pin SCAN1 exports high level, and output pin SCAN2 exports low level, if switch S5 is closed, will to input
Hold pin COM1 ground connection, that is, input terminal pin COM1 to input a low level signal, then MCU judges switch S5 closure,
The key for just corresponding to switch S5 is pressed, if input terminal pin COM2 inputs a low level signal, shows to correspond to
It is pressed in the key of switch S6.
MCU according to two output pin SCAN1 and SCAN2 and four input terminal pin COM1, COM2, COM3 and
After the information of COM4 judges the action signal of matrix press-key, execution order then will be acted accordingly and passes through I2C communications protocol
It is communicated with 2.4G chip JD0068, is then output to 2.4G chip JD0068.Existed by 2.4G chip JD0068 according to order
The signal of a variety of different control data is continuously transmitted or discontinuously sent in fixed frequency.
The equipment that these signals can be required control receives, and equipment will enter into using GFSK modulation system to be needed to control
Equipment signal after Gassian low-pass filter, filter out unused signal, the signal of specific frequency obtained, by synchronization character
After parsing to, the digital signal data of needs is sent to the MCU for needing device to be controlled, and saved and analyzed, then will
Control signal sends controller to, executes movement to equipment by controller.
Detailed description of the invention
Fig. 1 is the schematic diagram of the novel remote controller control circuit of the utility model.
Fig. 2 is outside line figure of the MCU using the single-chip microcontroller of model JWTMU14A.
Fig. 3 is the outside line figure of 2.4G chip JD0068.
Fig. 4 is the connection circuit diagram of matrix press-key circuit and MCU.
Main element symbol description
| Serial data line interface | SDA |
| Serial clock line interface | SCL |
| The effective slave of low level selects line interface | CS |
| Power supply | VCC |
| Input terminal pin | COM1~COM4 |
| Output pin | SCAN1、SCAN2 |
| Crystal oscillator | Y1 |
| Antenna | E1 |
| Capacitor | C1 |
| Switch | S1~S8 |
| Interface | J1 |
| Interface | J2 |
The following detailed description will be further explained with reference to the above drawings the utility model.
Specific embodiment
Case 1 is embodied:
As shown in Figure 1, the schematic diagram of the novel remote control control circuit for the utility model；As shown in Fig. 2, being MCU
Using the outside line figure of the single-chip microcontroller of model JWTMU14A；Such as the outside line figure that Fig. 3 is 2.4G chip JD0068；Such as figure
It is the connection circuit diagram of matrix press-key circuit and MCU shown in 4.
A kind of novel remote control control circuit comprising: matrix press-key circuit, model JWTMU14A single-chip microcontroller,
2.4G chip JD0068, crystal oscillator oscillating circuit, antenna E1, it is characterised in that: it in total include 8 switches in matrix press-key circuit,
The single-chip microcontroller of respectively S1~S8, model JWTMU14A include 14 pins, wherein the single-chip microcontroller of model JWTMU14A
10 feet (IOB0), 12 feet (IOA3) are output pin SCAN1 and SCAN2,6 feet (IOB4/OSIO), 5 feet (IOB5/OCSI), 8
Foot (IOB2), 9 feet (IOB1) are input terminal pin COM1, COM2, COM3 and COM4, and wherein output pin SCAN1 passes through line
Road is connected to input terminal pin COM1 after being connected to switch S1, and input terminal pin SCAN1 connects after passing through connection to switch S2
It is connected to input terminal pin COM2, input terminal pin SCAN1 is connected to input terminal pin COM3 after passing through connection to switch S3,
Input terminal pin SCAN1 is connected to input terminal pin COM4 after passing through connection to switch S4, and output pin SCAN2 passes through
Input terminal pin COM1 is connected to after connection to switch S5, after input terminal pin SCAN2 passes through connection to switch S6
Input terminal pin COM2 is connected to by connector J1, and input terminal pin SCAN2 passes through after connection to switch S7 by company
It meets device J2 and is connected to input terminal pin COM3, input terminal pin SCAN2 is connected to input terminal after passing through connection to switch S8
Pin 4.4 feet (VDD) of the single-chip microcontroller of model JWTMU14A are for connecting power circuit block, and operating voltage is 3.3V,
11 feet (VSS) ground connection.1 foot (IOAO) of the single-chip microcontroller of model JWTMU14A passes through serial data line and 2.4G chip JD0068
Pin 7 (SDA) connection, 2 feet (IOB7) of the single-chip microcontroller of model JWTMU14A pass through serial time clock line and 2.4G chip
The pin (SCL) of JD0068 connects, and 3 feet (CS) of the single-chip microcontroller of model JWTMU14A pass through chip select line and 2.4G chip
JD0068 pin 5 (CS) connection, so that MCU and 2.4G chip generate communication according to I2C agreement.The monolithic of model JWTMU14A
The pin 7 (IOB3/RSTB) of machine connects reseting input signal, and other two pins 13 (IOA2), pin 14 (IOA1) are positive
Normal I/O port is used for later development other function.2.4G chip JD0068 includes 8 pins, wherein pin 1 (XO) is crystal
Oscillator output interface, pin 2 (XI) are crystal oscillator input interface, are drawn respectively with two of 12MHz crystal oscillator
Foot is connected.The pin 4 (ANT) of 2.4G chip JD0068 is rf input interface, for connecting antenna；Pin 8 (VCC) is for connecting
Connect power supply, pin 3 (VSS) ground connection.The operating voltage of 2.4G chip JD0068 is 3.3V.
Wherein, the working frequency of 2.4G chip JD0068 is 2402MHz~2530MHz, totally 128 channels, can be quick
Channel switching supports frequency modulation algorithm.
As described above based on the remote control control circuit of 2.4G chip, its working principle is that:
It is powered on first by power circuit block to MCU and 2.4G chip JD0068.
Then, two the output pins SCAN1 and SCAN2 of MCU export scanning signal, with two states, respectively
For " 01 " and " 10 ".In " 01 " state, output pin SCAN1 exports low level, the high electricity of output pin SCAN2 output
It is flat, if switch S1 is closed, input terminal pin COM1 will be made to be grounded, that is, input terminal pin COM1 inputs a low electricity
Ordinary mail number, then MCU judges switch S1 closure, that is, the key corresponding to switch S1 is pressed, if input terminal pin COM2
A low level signal is inputted, then shows that the key corresponding to switch S2 is pressed；And so on, it is defeated in " 10 " state
Outlet pin SCAN1 exports high level, and output pin SCAN2 exports low level, if switch S5 is closed, will to input
Hold pin COM1 ground connection, that is, input terminal pin COM1 to input a low level signal, then MCU judges switch S5 closure,
The key for just corresponding to switch S5 is pressed, if input terminal pin COM2 inputs a low level signal, shows to correspond to
It is pressed in the key of switch S6.
MCU according to two output pin SCAN1 and SCAN2 and four input terminal pin COM1, COM2, COM3 and
After the information of COM4 judges the action signal of matrix press-key, execution order then will be acted accordingly and passes through I2C communications protocol
It is communicated with 2.4G chip JD0068, is then output to 2.4G chip JD0068.Existed by 2.4G chip JD0068 according to order
The signal of a variety of different control data is continuously transmitted or discontinuously sent in fixed frequency.
The equipment that these signals can be required control receives, and equipment will enter into using GFSK modulation system to be needed to control
Equipment signal after Gassian low-pass filter, filter out unused signal, the signal of specific frequency obtained, by synchronization character
After parsing to, the digital signal data of needs is sent to the MCU for needing device to be controlled, and saved and analyzed, then will
Control signal sends controller to, executes movement to equipment by controller.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of novel remote controller control circuit comprising: key circuit, MCU, 2.4G chip JD0068, crystal oscillator oscillating circuit,
Antenna E1, it is characterised in that: O mouthfuls of I connections of key circuit and MCU are read, opening in preservation and analysis button circuit by MCU
OFF signal；2.4G chip JD0068 includes 8 pins, wherein pin 1 and pin 2 for connecting crystal oscillator oscillating circuit；Pin 7,
Pin 6 and pin 5 are I2C interface, for connecting the I2C interface of MCU, so that MCU and 2.4G chip generate communication；Pin 4 is
Rf input interface, for connecting antenna；Pin 8 is grounded for connecting power supply, pin 3；MCU passes through I2C interface and 2.4G core
Piece JD0068 connection, a portion pin of MCU access power supply, a part of pin access ground.
2. novel remote controller control circuit as described in claim 1, it is characterised in that: the pin 1 of 2.4G chip JD0068 is
Crystal oscillator output interface, pin 2 be crystal oscillator input interface, respectively with two pin phases of crystal oscillator
Even.
3. novel remote controller control circuit as described in claim 1, it is characterised in that: use 12MHz in crystal oscillator oscillating circuit
Crystal oscillator.
4. novel remote controller control circuit as described in claim 1, it is characterised in that: the working frequency of 2.4G chip JD0068
For 2402MHz~2530MHz, totally 128 channels, can fast channel switching, support frequency modulation algorithm.
5. novel remote controller control circuit as described in claim 1, it is characterised in that: MCU selects model JWTMU14A's
Single-chip microcontroller.
6. novel remote controller control circuit as claimed in claim 5, it is characterised in that: the operating voltage of 2.4G chip JD0068
For 1.9V~3.6V, the operating voltage of single-chip microcontroller JWTMU14A is 2V~5.5V.
7. novel remote controller control circuit as described in claim 1, it is characterised in that: the key circuit of remote controler selects matrix
Key circuit.
8. novel remote controller control circuit as claimed in claim 7, it is characterised in that: when key circuit selection matrix key electricity
Matrix press-key circuit is given comprising there are two output pin, being used to issue scanning signal respectively in Lu Shi, MCU, and by multiple
Signal after scanning is fed back to MCU by input terminal pin, analyzes and determines to be specifically which is closed the switch by MCU.
9. novel remote controller control circuit as claimed in claim 8, it is characterised in that: include two output pins in MCU
SCAN1 and SCAN2 and four input terminal pin COM1, COM2, COM3 and COM4, wherein output pin SCAN1 passes through line
Road is connected to input terminal pin COM1 after being connected to switch S1, and input terminal pin SCAN1 connects after passing through connection to switch S2
It is connected to input terminal pin COM2, input terminal pin SCAN1 is connected to input terminal pin COM3 after passing through connection to switch S3,
Input terminal pin SCAN1 is connected to input terminal pin COM4 after passing through connection to switch S4, and output pin SCAN2 passes through
Input terminal pin COM1 is connected to after connection to switch S5, after input terminal pin SCAN2 passes through connection to switch S6
It is connected to input terminal pin COM2, input terminal pin SCAN2 is connected to input terminal pin COM3 by connection to switch S7,
Input terminal pin SCAN2 is connected to input terminal pin 4 after passing through connection to switch S8.
10. novel remote controller control circuit as claimed in claim 9, it is characterised in that: switch S1~S8 and input terminal pin
It can be attached by connector between COM1~COM4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191330.3U CN208433101U (en) | 2018-07-26 | 2018-07-26 | A kind of novel remote controller control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191330.3U CN208433101U (en) | 2018-07-26 | 2018-07-26 | A kind of novel remote controller control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433101U true CN208433101U (en) | 2019-01-25 |
Family
ID=65097108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821191330.3U Active CN208433101U (en) | 2018-07-26 | 2018-07-26 | A kind of novel remote controller control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208433101U (en) |
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2018
- 2018-07-26 CN CN201821191330.3U patent/CN208433101U/en active Active
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