CN108551630A - A kind of wireless microphone is to frequency display circuit - Google Patents
A kind of wireless microphone is to frequency display circuit Download PDFInfo
- Publication number
- CN108551630A CN108551630A CN201810647367.0A CN201810647367A CN108551630A CN 108551630 A CN108551630 A CN 108551630A CN 201810647367 A CN201810647367 A CN 201810647367A CN 108551630 A CN108551630 A CN 108551630A
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- China
- Prior art keywords
- feet
- power supply
- foot
- mcu
- sequentially connected
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- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of wireless microphones to frequency display circuit, including MCU, the MCU is connected with hand-held microphone signal receiver, the MCU is equipped with 7 feet, 8 feet, 9 feet and 10 feet, 7 foot is sequentially connected the anode of the first white light-emitting diode, first resistor and power supply, and 10 foot is sequentially connected the cathode of the second white light-emitting diode, second resistance and power supply；8 foot is sequentially connected the cathode of the first red light emitting diodes, 3rd resistor and power supply, and 9 foot is sequentially connected the cathode of the second red light emitting diodes, the 4th resistance and power supply.Compared with the prior art, the present invention has the advantages of：The present invention is realized by light discoloration and quickly determines whether connected to frequency between wireless microphone and receiver, can directly be observed in larger distance, check, improve work efficiency without going in face of traditional receivers display screen.
Description
Technical field
The present invention relates to microphone circuits more particularly to a kind of wireless microphone to frequency display circuit.
Background technology
Whether present wireless microphone is showed to frequency by receiver display screen displayed information.Disadvantage exists
In：When installing engineering, receiver is installed at a distance, to whether determine microphone to frequency, is needed to go in face of receiver and be checked
Display information seriously affects working efficiency.
Invention content
The present invention is to provide a kind of wireless microphone to frequency display circuit to solve above-mentioned deficiency.
The above-mentioned purpose of the present invention is realized by technical solution below：A kind of wireless microphone to frequency display circuit,
It is connected with hand-held microphone signal receiver including MCU, MCU, the MCU is equipped with 7 feet, 8 feet, 9 feet and 10 feet, and 7 foot is sequentially connected
The anode of first white light-emitting diode, first resistor and power supply, 10 foot are sequentially connected the second white light-emitting diode,
The cathode of two resistance and power supply；8 foot is sequentially connected the cathode of the first red light emitting diodes, 3rd resistor and power supply, institute
State the cathode that 9 feet are sequentially connected the second red light emitting diodes, the 4th resistance and power supply.
The first resistor, second resistance, 3rd resistor, the 4th resistance are 22 Ω resistance.
The power supply is 3.3V power supplys.
The operation principle of the present invention is that：After booting, MCU drags down 7 feet, 10 foot current potentials, white luminous two pole in backlight
Pipe shines.After receiving hand-held microphone signal, MCU drags down 8 feet, 9 foot current potentials, and red diode shines in backlight, and MCU will
7 feet, 10 foot current potentials restore.
Compared with the prior art, the present invention has the advantages of：The present invention realizes by light discoloration and quickly determines wireless Mike
Whether frequency is connected, can directly be observed in larger distance, without going to traditional receivers display screen between wind and receiver
It checks, improves work efficiency in front.
Description of the drawings
The circuit structure diagram of Fig. 1 present invention.
Specific implementation mode
The present invention is described in further detail with reference to embodiment.
As shown in Figure 1, a kind of wireless microphone, to frequency display circuit, including MCU, MCU is connected with hand-held microphone signal receiver,
The MCU is equipped with 7 feet, 8 feet, 9 feet and 10 feet, and 7 foot is sequentially connected the first white light-emitting diode, first resistor and power supply
Anode, 10 foot is sequentially connected the cathode of the second white light-emitting diode, second resistance and power supply；8 foot connects successively
Connect the cathode of the first red light emitting diodes, 3rd resistor and power supply, 9 foot be sequentially connected the second red light emitting diodes,
The cathode of 4th resistance and power supply.
The first resistor, second resistance, 3rd resistor, the 4th resistance are 22 Ω resistance.
The power supply is 3.3V power supplys.
The operation principle of the present invention is that：After booting, MCU drags down 7 feet, 10 foot current potentials, white luminous two pole in backlight
Pipe shines.After receiving hand-held microphone signal, MCU drags down 8 feet, 9 foot current potentials, and red diode shines in backlight, and MCU will
7 feet, 10 foot current potentials restore.
The present invention realizes by light discoloration and quickly determines whether connected to frequency between wireless microphone and receiver.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and embodiment content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (3)
1. a kind of wireless microphone is to frequency display circuit, including MCU, it is characterised in that：The MCU is connected with the reception of hand-held microphone signal
Device, the MCU be equipped with 7 feet, 8 feet, 9 feet and 10 feet, 7 foot be sequentially connected the first white light-emitting diode, first resistor and
The anode of power supply, 10 foot are sequentially connected the cathode of the second white light-emitting diode, second resistance and power supply；8 foot according to
The cathode of the first red light emitting diodes of secondary connection, 3rd resistor and power supply, 9 foot are sequentially connected two pole of the second emitting red light
The cathode of pipe, the 4th resistance and power supply.
2. a kind of wireless microphone according to claim 1 is to frequency display circuit, it is characterised in that：The first resistor,
Second resistance, 3rd resistor, the 4th resistance are 22 Ω resistance.
3. a kind of wireless microphone according to claim 1 is to frequency display circuit, it is characterised in that：The power supply is 3.3V
Power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810647367.0A CN108551630A (en) | 2018-06-22 | 2018-06-22 | A kind of wireless microphone is to frequency display circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810647367.0A CN108551630A (en) | 2018-06-22 | 2018-06-22 | A kind of wireless microphone is to frequency display circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108551630A true CN108551630A (en) | 2018-09-18 |
Family
ID=63492871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810647367.0A Pending CN108551630A (en) | 2018-06-22 | 2018-06-22 | A kind of wireless microphone is to frequency display circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108551630A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101120510A (en) * | 2005-02-24 | 2008-02-06 | 松下电器产业株式会社 | Wireless microphone system |
| CN101170325A (en) * | 2007-12-05 | 2008-04-30 | 新洋电子科技有限公司 | Bluetooth wireless microphone |
| CN201984669U (en) * | 2010-04-06 | 2011-09-21 | 广州海昇计算机科技有限公司 | Digital wireless microphone and electric pointer system |
| CN204669677U (en) * | 2015-06-03 | 2015-09-23 | 张礼育 | A kind of multi-functional led desk lamp On line switch |
| CN205864676U (en) * | 2016-06-28 | 2017-01-04 | 深圳市三德大康电子有限公司 | A kind of Novel Bluetooth earphone |
| TWM561378U (en) * | 2017-12-29 | 2018-06-01 | Jing Yih Co Ltd | Wireless microphone transceiver structure |
-
2018
- 2018-06-22 CN CN201810647367.0A patent/CN108551630A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101120510A (en) * | 2005-02-24 | 2008-02-06 | 松下电器产业株式会社 | Wireless microphone system |
| CN101170325A (en) * | 2007-12-05 | 2008-04-30 | 新洋电子科技有限公司 | Bluetooth wireless microphone |
| CN201984669U (en) * | 2010-04-06 | 2011-09-21 | 广州海昇计算机科技有限公司 | Digital wireless microphone and electric pointer system |
| CN204669677U (en) * | 2015-06-03 | 2015-09-23 | 张礼育 | A kind of multi-functional led desk lamp On line switch |
| CN205864676U (en) * | 2016-06-28 | 2017-01-04 | 深圳市三德大康电子有限公司 | A kind of Novel Bluetooth earphone |
| TWM561378U (en) * | 2017-12-29 | 2018-06-01 | Jing Yih Co Ltd | Wireless microphone transceiver structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180918 |
|
| WD01 | Invention patent application deemed withdrawn after publication |