2024-03-15
The difference between SPI and DMX512
The difference between SPI and DMX512
There are many styles and forms of led light belt products, but in general, it can be divided into SPI LED light belt and DMX512 LED light belt.
At the beginning of the magic color products are DMX512 products, there are patents, and there is a special DMX software system to achieve the control of lighting. The cost of equipment is high, and the people who will use the system are also very rare, which greatly restricts the development of color products.
Based on the product performance of the DMX512 lamp strip, there are companies in the market to design SPI signal products with similar effects, which can break the patent restrictions of DMX512, and the price is cheaper. Soon, SPI products became popular in the market.
Compared with DMX512 magic light belt, SPI magic light belt is cheaper, more popular in the market, and more diverse styles.
According to the location of the IC, the SPI light strip can be divided into a built-in IC magic light strip and an external IC magic light strip.
By voltage, it can be divided into 5V, 12V, 24V
According to whether there are two communication lines, it can be divided into breakpoint continuous light strip and non-breakpoint continuous light strip
According to the color of the lamp strip, it can be divided into white light, two-color, RGB, RGBW and RGBWW magic light strips
According to the direction of the lamp bead, it can be divided into positive light and side light
By voltage, it can be divided into 5V, 12V, 24V
According to whether there are two communication lines, it can be divided into breakpoint continuous light strip and non-breakpoint continuous light strip
According to the color of the lamp strip, it can be divided into white light, two-color, RGB, RGBW and RGBWW magic light strips
According to the direction of the lamp bead, it can be divided into positive light and side light
In general, SPI can meet most of your functional requirements, so if there is no special need, you only need to pick the right one from the SPI magic light bar.
Of course, DMX512 magic lights also have advantages that are no better than yours, mainly reflected in the following aspects:
1.DMX512 light strip can achieve more complex functional effects through the arrangement of address code and the coordination of DMX512 system.
2.DMX512 signal data transmission frequency is higher, stronger anti-interference, suitable for more high-end applications.
3.DMX512 is dual signal transmission, which has the function of breakpoint continuation itself, and the damage of a single IC does not affect the work of the entire lamp strip.
1.DMX512 light strip can achieve more complex functional effects through the arrangement of address code and the coordination of DMX512 system.
2.DMX512 signal data transmission frequency is higher, stronger anti-interference, suitable for more high-end applications.
3.DMX512 is dual signal transmission, which has the function of breakpoint continuation itself, and the damage of a single IC does not affect the work of the entire lamp strip.
Therefore, compared with the SPI magic light bar, the DMX512 magic light bar is more high-end. If your project has higher requirements for quality and stability, or if you want to achieve more complex control, it is recommended to use the DMX512 magic light strip.
In general, SPI is more cost-effective, and more styles, conventional projects use SPI signal light belt is good; DMX512 magic light strip performance is more stable, more suitable for high-end projects.
