The LED sending card is a key part of how an LED screen works,The LED-sending Card converts the input video signal (HDMI or DVI) to a format the screen can interpret.
In most cases, the outputs from these cards are the LED screen. LED sending cards incorporate light-emitting diodes to create dynamic visual effects.
Sending cards convert the digital video data and divide it into millions of small parts so that they can be interpreted by the Receiving Cards that are installed on the LED screen.
It has always been necessary to use sending cards in synchronous LED screens since, as the screens are made of LEDs or individual pixels, it becomes necessary to use electronics and a specific communication system to receive the data to perform their function.
Sending cards are usually classified according to the resolution capacity they are capable of processing. We can have cards that can obtain maximum output resolutions of 1024 x 768 and higher ones with capacities of up to 4K or more.
It is necessary to adapt the resolution of our LED video wall to the capacity of each sending card. In addition to the resolution capability sending cards can offer, different functions, such as:
Ambient sensor that can measure the room temperature and send it to the card to be displayed on the LED screen. The LED wall’s software configures this option, and you can customize the time you want to display the environmental temperature captured by the sensor. The temperature sensor needs to be installed in an area where auxiliary temperatures do not interfere (shaded areas, near heat sources, etc.).
Brightness Sensor, These sensors are connected to the sending card, allowing control of the brightness of the dvLED according to the room lighting conditions.
Sometimes, instead of using temperature sensors, it is necessary to collect the environmental data that is offered from specialized web pages, which are captured and displayed on the LED screen itself.
Error detection on the LED screen; the more advanced and expensive models on the market allow you to carry out a detailed analysis of the electronic performance of the LED board.
This allows you to have complete control over the adequate operations of the digital display board. Due to the high price of these systems, it is only recommended for companies with large fleets of advertising screens spread over vast geographical areas
