Dot-matrix Display

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Dot-matrix Display can be used in many aspects,like:

Display in subway station;

display in bank,supermarket,school;

information board in hospital;

automotive advertising screen;

electric gate information screen and so on.

Products in photo album are part of main products in my company.And we also can

manufacture other model according to the requirements from customers.

Looking forward to your inquiry!

Q: How to lighten LED dot matrix in full screen: The module in the correct direction in order to connect the power and the 16 pin cable, power cable ends must distinguish between positive and negative, the same direction, and a power supply with 8 or below the most recommended module, and then use a control card, the control card has a test screen point function

Q: I bought a 16X64 LED lattice screen to learn microcontroller, now encountered a problem is how to realize the LED lattice left scrolling LED dot matrix is Chinese characters, I used 8 74HC595 as the column driver, a 74HC154 line scan, the heroes who have no reference to the younger program reference, is used the compilation of the: If there is a program that displays a "static" screen, you can write a program called "left" scrolling.

Q: I would like to ask 24 feet of two-color LED dot matrix working principle and circuit diagram: It is the working principle of dynamic display, each time only one LED was lit, because its operating frequency is very high, so the eyes do not see it as a dynamic, LED dot matrix input with rows and columns between the rows and columns of the corresponding access signal LED will be lit but at the same time, only one row and column is connected to the signal, otherwise they will be garbled.

Q: I use multiple 8*8's LED dot matrix, with 4 8*8 can form a 16*16 matrix, then the line between the two 16*16 is how to connect?: The connection between the two does not need it, and then connect the driver circuit with the microcontroller, after receiving the LED to see how you control the program...

Q: After my circuit is connected by PROTEUS, the interface between 74HC373 and 74LS138 doesn't know how to connect to the dot matrix.I picked up a few and tried, the lights were all lined up.Check on the Internet, it seems to be connected to the transistor and resistor limit flow what.: 16*16 LED dot matrix must be connected resistors and transistors, if the direct connection is not bright.

Q: LED dot matrix with single-chip microcomputer is how to control?: To put it simply, the LED dot array requires two rows of 8 bits, one for the line, one for the column, for example 0 is the selected meaning, then the line is 01111111, and the column is 1011111, then the first row of the second column lights.

Q: How to use C language to achieve LED dot matrix display character movement: Do you want 16*16 dot matrix? This C language can be written to move characters to the left

Q: This is my modern electronic design topic, need to use the digital electronic technology knowledge to do, cannot use the monolithic integrated circuit or the PC machine. I hope you can tell me which chips and what devices to use, and so I'd like to tell you the whole idea. thank you very much indeed: The A and B are serial data inputs that control the data. When the A, B, any one is low, the data is forbidden, and the Q0 is low under the action of the rising edge of the clock (CLK) pulse.

Q: I want to display the characters that move around on the LED dot matrix. What does the program do, and what other components do I need?: I learned programming. As far as I can see, which elements of the shape of the words are controlled on the dot matrix, and then in a sequential manner, in a recursive manner (increasing the number of lights in the loop), all the way to the end, and then the loop.

Q: The dot matrix brightness of single chip computer is inconsistent: The cause of this problem is because the microcontroller is a column (row), a column (row) one by one scan, if the scan to the first column (row) with 1 LED light, scanning to the next column (row) when there are 2 LED lights, the two column (row) brightness the lamp will not, because the second column (row) LED than the first column (row) of the LED, according to the parallel series voltage dividing the second column (row) LED current is the first column (row) half of the LED current, so it is darker.

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