【Arduino】168 Sensor Series Experiments (211) --- WS2812B Ring 93 Light Module

eagler8

【Arduino】168 Sensor Series Experiments (211) --- WS2812B Ring 93 Light Module [Copy link]

 

The idea of 37 sensors and modules is widely circulated on the Internet. In fact, there are definitely more than 37 sensor modules that Arduino is compatible with. In view of the fact that I have accumulated some sensor and actuator modules, in accordance with the concept of practice makes perfect (must do it), for the purpose of learning and communication, I am going to try them one by one and do more experiments. Whether successful or not, I will record them - small progress or unresolved problems, I hope to be able to inspire others.

[Arduino] 168 Sensor Module Series Experiments (Data Code + Simulation Programming + Graphical Programming)
Experiment 211: LED Ring Built-in IC Full-Color Point Control 1-8-12-16-24-32 WS2812B 93 Light Ring Disc

eagler8

WS2812B
is an intelligent externally controlled LED light source that integrates control circuit and light-emitting circuit. Its appearance is the same as a 5050LED lamp bead, and each component is a pixel. The pixel contains an intelligent digital interface data latch signal shaping and amplification drive circuit, a high-precision internal oscillator and a 12V high-voltage programmable constant current control part, which effectively ensures that the color of the pixel light is highly consistent. The data protocol adopts a single-line return-to-zero code communication method. After the pixel is powered on and reset, the DIN end receives the data transmitted from the controller. The first 24-bit data sent is extracted by the first pixel and sent to the data latch inside the pixel. The remaining data is shaped and amplified by the internal shaping processing circuit and then forwarded to the next cascaded pixel through the DO port. After each pixel is transmitted, the signal is reduced by 24 bits. The pixel adopts automatic shaping and forwarding technology, so that the number of cascades of the pixel is not limited by signal transmission, but only by the signal transmission speed requirement.

eagler8

Main features
1. Intelligent reverse connection protection, reverse connection of power supply will not damage IC.
2. IC control circuit and LED point light source share a power supply.
3. Control circuit and RGB chip are integrated in a 5050 package component to form a complete externally controlled pixel.
4. Built-in signal shaping circuit, any pixel receives the signal and then outputs it after waveform shaping, ensuring that line waveform distortion will not accumulate.
5. Built-in power-on reset and power-off reset circuits.
6. The three primary colors of each pixel can achieve 256 levels of brightness display, complete 16777216 colors of true color display, and the scanning frequency is not less than 400Hz/s.
7. Serial cascade interface, which can complete data reception and decoding through a signal line.
8. No circuit needs to be added when the transmission distance between any two points does not exceed 5 meters.
9. When the refresh rate is 30 frames/second, the number of cascades is not less than 1024 points.
10. The data transmission speed can reach 800Kbps.
11. The color of light is highly consistent and cost-effective.

Application fields
It has the advantages of low voltage drive, environmental protection and energy saving, high brightness, large scattering angle, good consistency, ultra-low power, and ultra-long life. By integrating the control circuit on the LED, the circuit becomes simpler, the volume is small, and the installation is easier. The main application fields are LED full-color luminous character light string, LED full-color module, LED full-color soft light bar hard light bar, LED guardrail tube. LED point light source, LED pixel screen, LED special-shaped screen, various electronic products, electrical equipment marquee, etc.

eagler8

The WS2812B disc light is composed of 93 lamp beads, powered by 5V. The disc is divided into 6 circles, each circle can be controlled separately, and each circle supports cascade control and cutting. The DI of the second circle can be connected to the DO position of the first circle, and so on. Each circle can be connected in series to form a larger lamp plate or cut to form other styles. The three primary colors of each pixel of the lamp bead can achieve 256 levels of brightness display, complete 16777216 colors of true color display, and the scanning frequency is not less than 400Hz/s.

eagler8

eagler8

Technical specifications
Working voltage: 5V
Lamp bead model: WS2812B
Lamp bead quantity: 93 lamps
Light source: SMD 5050 RGB
Grayscale level: 256 levels
Lighting angle: 180 degrees
Color: full color RGB

eagler8

LED driver chip WS2812 (integrated in the LED)
has intelligent reverse connection protection, and reverse connection of power supply will not damage IC.
IC control circuit and LED point light source share a power supply.
Control circuit and RGB chip are integrated in a 5050 package component to form a complete external control element point.
Built-in signal shaping circuit, any element point receives the signal and then outputs it after waveform shaping, ensuring that line waveform distortion will not accumulate.
Built-in power-on reset and power-off reset circuits.
The three primary colors of each element point can achieve 256 levels of brightness display, complete 16777216 colors of true color display, and the scanning frequency is not less than 400Hz/s.
Serial cascade interface, can complete data reception and decoding through a signal line.
No circuit needs to be added when the transmission distance between any two points does not exceed 5 meters.
When the refresh rate is 30 frames/second, the number of cascades is not less than 1024 points.
The data transmission speed can reach 800Kbps.
The color of light is highly consistent and cost-effective.

eagler8

Pin Diagram

The light panel is divided into 6 rings, each of which can be controlled individually. Each ring supports cascade control. The DI of the second ring can be connected to the DO position of the first ring, and so on, connecting each ring in series.

Pin Diagram

Wiring method:

5V: Positive power supply

GND: Negative pole of power supply

DI: signal input

DO: signal output

Honghuzaitian

The wiring of IN and DO can be optimized, and it may be better to put them on the same side.

eagler8

Honghuzaitian posted on 2022-10-3 13:03 The wiring of IN and DO can be optimized. It may be better to put them on the same side.

The structure is like this, not on the same side

a4level

Very useful information, very suitable for beginners to learn, thanks to the author for sharing

eagler8

a4level posted on 2022-10-18 12:46 Very, very practical information, very suitable for beginners to learn, thanks to the author for sharing

Thanks for the encouragement

lkh747566933

Are there any vertical colorful LED lamp beads that can emit light from the side?

eagler8

lkh747566933 posted on 2022-10-29 16:46 Are there any vertical colorful LED lamp beads that can emit light from the side?

Good morning, the WS2812 LED light series includes light strips, light panels, light bars and light rings. Which one are you looking for?

eagler8

lkh747566933 posted on 2022-10-29 16:46 Are there any vertical colorful LED lamp beads that can emit light from the side?

Mainly these

lkh747566933

eagler8 posted on 2022-10-31 19:21 lkh747566933 posted on 2022-10-29 16:46 Are there any vertical colorful LED lamp beads that can emit light from the side? Mainly these types...

These are flat-mounted, front-lit. I was looking for side-lit or side-mounted lamp beads.

eagler8

lkh747566933 posted on 2022-11-2 16:24 These are flat-mounted and front-lit. I was looking for the side-lit or side-mounted lamp beads before.

Give me a picture, you can find it by looking at the picture

eagler8

lkh747566933 posted on 2022-11-2 16:24 These are flat-mounted and front-lit. I was looking for side-lit or side-mounted lamp beads.

Standard 5050 lamp bead chips, 0.13 yuan each on Taobao, you can patch them yourself