1、What is the LED display control card?
LED display control card is the core component of LED graphic display, responsible for receiving the screen display information from the serial port of the computer, placed in the frame memory, and generating the serial display data and scan control timing required by the LED display according to the partition drive mode, and the effect of the LED display screen is related to it.
2、What are the classifications of LED display control cards?
Can be divided into single and double color control card, colorful control card, full color control card three categories
3、What should I pay attention to when using LED display control card?
Different brands of control cards and corresponding installation software are different. The same brand is also divided into different models, the function varies greatly. Small area of the monochrome screen commonly used simple non-partitioned control card, cost-effective; and a slightly larger area can use partitioned control card, the price is higher.
4、What are the ways to connect the LED display control card?
The control card and the computer are connected in the following main ways: network port (TCP/IP), serial port (RS232, RS485), U disk conduction, GPRS wireless connection, Zigbee wireless connection, etc.
5、How to choose the LED display control card?
First understand the LED display specifications, size, calculate the number of points, know the effect they need, is synchronous, or asynchronous, the need for secondary development; then, determine the synchronous asynchronous, determine the effect, determine the range of points, determine the price range, determine the card; control card to choose the right, not necessarily high price, good quality is suitable. Software is not suitable for themselves and their customers.
6、How can’t I find the LED display control card?
a. Make sure the control card is compatible with the software.
b. Check if the connection cable is off, loose, check and confirm that the serial cable used to connect the control card matches the control card, some control cards use straight through (2-2, 3-3, 5-5) and some control cards use (2-3, 3-2, 5-5). -2, 5-5).
c. Make sure the control system hardware is properly powered up.
d. Select the correct product model, correct transmission mode, correct serial number, correct baud rate and correctly set the address bits and baud rate on the control system hardware against the dip switch diagram provided in the software and the control card you choose.
e. If it still does not load after the above check and correction, please use a multimeter to measure if the serial port of the connected computer or control system hardware is damaged. To confirm whether it is necessary to return the computer manufacturer or send the control system hardware back for testing.
