CN213755036U - Digital signal controlled side-emitting full-color lamp strip - Google Patents
Digital signal controlled side-emitting full-color lamp strip Download PDFInfo
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- CN213755036U CN213755036U CN202022413602.3U CN202022413602U CN213755036U CN 213755036 U CN213755036 U CN 213755036U CN 202022413602 U CN202022413602 U CN 202022413602U CN 213755036 U CN213755036 U CN 213755036U
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Abstract
The utility model provides a full-color lamp strip is sent out to digital signal control's side, including the base plate and set up first lamp pearl, a plurality of middle lamp pearl and the second lamp pearl on the base plate side by side the utility model discloses in, each lamp pearl power is parallelly connected and the data is established ties, only needs to occupy the GPIO port of an MCU and can realize controlling the luminous colour of every lamp pearl on the whole lamp strip cluster, has improved the utilization ratio of MCU port.
Description
Technical Field
The utility model relates to a light emitting diode especially relates to a full-color lamp strip is sent out to digital signal control's side.
Background
The existing side-emitting full-color lamp strip generally comprises a full-color side-emitting 4020 lamp bead with an IC (integrated circuit), a resistor, a capacitor and the like; the color mixing effect is realized by applying the full-color lamp, the PWM mode is generally adopted for controlling, and at least 3 GPIO ports of the MCU are occupied by a single-string lamp; resulting in a low port utilization of the MCU.
Disclosure of Invention
For solving the above problem, the utility model provides a full-color lamp strip is sent out to digital signal control's side.
The main contents of the utility model include:
a digital signal controlled side-emitting full-color lamp strip comprises a substrate and an LED lamp strip string arranged on the substrate, wherein the LED lamp strip string comprises a first lamp bead, a second lamp bead and a plurality of middle lamp beads, the first lamp bead and the second lamp bead are internally provided with an IC, the middle lamp beads are arranged between the first lamp bead and the second lamp bead side by side, and the first lamp bead, the second lamp bead and the middle lamp beads are provided with a data input interface Din, a data output interface Dout, a power interface VDD and a ground interface GND; the data input interface Din of the first lamp bead is connected with a GPIO port of an external MCU, the data output interface Dout of the first lamp bead is connected with the data input interface Din of the middle lamp bead adjacent to the first lamp bead, the data input interface Din of the second lamp bead is connected with the data output interface Dout of the middle lamp bead adjacent to the second lamp bead, and the data output interface Dout of the second lamp bead is grounded; the data output interfaces Dout of the other middle lamp beads are connected with the data input interfaces Din of the middle lamp beads on the rear side of the middle lamp beads; the power interfaces VDD of the first lamp bead, the second lamp bead and the plurality of middle lamp beads are connected with an external 5V direct-current power supply; first lamp pearl, second lamp pearl and a plurality of the ground connection interface GND ground connection of middle lamp pearl.
Preferably, a first chip resistor R1 is further connected in series between the data input interface Din of the first lamp bead and the GPIO port of the external MCU.
Preferably, a second chip resistor R2 is further connected in series between the data output interface Dout of the second lamp bead and the ground.
Preferably, the power supply interface VDD of the first lamp bead, the second lamp bead and the plurality of middle lamp beads is connected with a patch capacitor in parallel and is grounded through the patch capacitor.
Preferably, the substrate is an aluminum substrate.
The beneficial effects of the utility model reside in that: the utility model provides a full-color lamp strip is sent out to digital signal control's side, each lamp pearl power is parallelly connected and the data series connection, only need occupy the GPIO port of an MCU and can realize controlling the luminous colour of every lamp pearl on the whole lamp strip cluster, has improved the utilization ratio of MCU port.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.
Please refer to fig. 1. The utility model provides a full-color lamp strip of side luminescence of digital signal control, be in including base plate and setting LED lamp strip cluster on the base plate, specifically, the base plate is aluminium base board, has good heat dispersion, and LED lamp strip cluster is including built-in IC's first lamp pearl LED1, second lamp pearl LED9 and set up side by side a plurality of middle lamp pearls between first lamp pearl LED1 and the second lamp pearl LED9, as shown in FIG. 1, middle lamp pearl has LED2 to LED8, first lamp pearl LED 35 1, second lamp pearl LED9 and a plurality of middle lamp pearl data series, the power that its is connected is parallelly connected, uses the port of a MCU to accomplish the control of all lamp pearls.
Specifically, the first lamp bead LED1, the plurality of middle lamp bead LEDs 2-LED8 and the second lamp bead LED9 are arranged on the base side by side, the first lamp bead LED1 and the second lamp bead LED9 are respectively arranged at the end of a queue, further, the first lamp bead LED1, the plurality of middle lamp bead LEDs 2-LED8 and the second lamp bead LED9 are 4020 lamp beads with built-in ICs, and each of the first lamp bead LED1, the plurality of middle lamp bead LEDs 2-LED8 and the second lamp bead LED9 has 4 interfaces, which are respectively a data input interface Din, a data output interface Dout, a power interface VDD and a ground interface GND; the lamp strip string is connected with a GPIO port of an external MCU to receive a control signal of the MCU, specifically, a data input interface Din of the first lamp bead LED1 is connected with the GPIO port of the external MCU, a data output interface Dout of the first lamp bead LED1 is connected with a data input interface Din of an adjacent middle lamp bead (LED2), a data input interface Din of the second lamp bead LED9 is connected with a data output interface Dout of an adjacent middle lamp bead (LED8), and a data output interface Dout of the second lamp bead LED9 is grounded; the data output interfaces Dout of the other middle lamp beads (from the LED3 to the LED7) are connected with the data input interfaces Din of the middle lamp beads on the front and rear sides thereof, for example, the data output interface Dout of the LED2 is connected with the data input interface Din of the LED3, and the data output interface Dout of the LED3 is connected with the data input interface Din of the LED 4; the power interfaces VDD of the first lamp bead LED1, the second lamp bead LED9 and the plurality of middle lamp beads are respectively connected with an external 5V direct-current power supply; the first lamp bead LED1, the second lamp bead LED9 and a plurality of the ground interfaces GND of the middle lamp beads are grounded.
In one embodiment, a first chip resistor R1 is also connected in series between the data input interface Din of the first lamp bead LED1 and the GPIO port of the external MCU; and a second chip resistor R2 is also connected in series between the data output interface Dout of the second lamp bead LED9 and the ground.
In one embodiment, patch capacitors C1-C9 are connected in parallel to a branch of the first lamp bead LED1, the second lamp bead LED2 and the plurality of intermediate lamp beads, where the power interface VDD is connected to an external power supply, and the other ends of the patch capacitors C1-C9 are grounded to prevent reverse current.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. A digital signal controlled side-emitting full-color light bar is characterized by comprising a substrate and an LED light bar string arranged on the substrate, wherein the LED light bar string comprises a first light bead LED1 with a built-in IC, a second light bead LED9 and a plurality of middle light beads arranged between the first light bead LED1 and the second light bead LED9 side by side, and the first light bead LED1, the second light bead LED9 and the middle light beads are provided with a data input interface Din, a data output interface Dout, a power interface VDD and a ground interface GND; the data input interface Din of the first lamp bead LED1 is connected with a GPIO port of an external MCU, the data output interface Dout thereof is connected with the data input interface Din of the middle lamp bead adjacent to the first lamp bead LED1, the data input interface Din of the second lamp bead LED9 is connected with the data output interface Dout of the middle lamp bead adjacent to the second lamp bead LED9, and the data output interface Dout of the second lamp bead LED9 is grounded; the data output interfaces Dout of the other middle lamp beads are connected with the data input interfaces Din of the middle lamp beads on the rear side of the middle lamp beads; the power interfaces VDD of the first lamp bead LED1, the second lamp bead LED9 and the plurality of middle lamp beads are connected with an external 5V direct-current power supply; the first lamp bead LED1, the second lamp bead LED9 and a plurality of the ground interfaces GND of the middle lamp beads are grounded.
2. The digital signal controlled side-emitting full-color light bar of claim 1, wherein a first chip resistor R1 is further connected in series between the data input interface Din of the first lamp bead LED1 and a GPIO port of an external MCU.
3. The digital signal controlled side-emitting full-color light bar according to claim 1 or 2, wherein a second chip resistor R2 is further connected in series between a data output interface Dout of the second lamp bead LED9 and ground.
4. The digital signal controlled side-emitting full-color light bar according to claim 1 or 2, wherein the power supply interface VDD of the first lamp bead LED1, the second lamp bead LED9 and the plurality of intermediate lamp beads is further connected in parallel with a patch capacitor, and is grounded through the patch capacitor.
5. The digital signal controlled side-emitting full-color light bar according to claim 3, wherein a branch circuit of the power interface VDD of the first lamp bead LED1, the second lamp bead LED9 and the plurality of middle lamp beads connected with an external 5V DC power supply is further connected with a patch capacitor in parallel, and the other end of the patch capacitor is grounded.
6. The digital signal controlled side-emitting full-color light bar according to claim 1, wherein the substrate is an aluminum substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022413602.3U CN213755036U (en) | 2020-10-27 | 2020-10-27 | Digital signal controlled side-emitting full-color lamp strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022413602.3U CN213755036U (en) | 2020-10-27 | 2020-10-27 | Digital signal controlled side-emitting full-color lamp strip |
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| Publication Number | Publication Date |
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| CN213755036U true CN213755036U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022413602.3U Active CN213755036U (en) | 2020-10-27 | 2020-10-27 | Digital signal controlled side-emitting full-color lamp strip |
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| CN (1) | CN213755036U (en) |
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- 2020-10-27 CN CN202022413602.3U patent/CN213755036U/en active Active
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