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: 8x8LED dot matrix display is how to distinguish between yin and Yang? I don't know much about the trouble. Thank you: A total of yin and Yang of the dot matrix screen, the anode and the cathode of each of its 8 LED were all connected in a row and a column, so a total of 8 rows and 8 columns.

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: I wrote one myself, but not 595, but the latch, and the rest of it is exactly the same, the assembler wrote, the principle HI me, and I still have work, so if you're not busy, you can learn from each other

Q: What's the difference between the LED module and the LED dot matrix?: LED dot matrix refers to the encapsulation of 8*8 modules, and then into a unit board, such panels are called dot matrix board, generally used for indoor monochrome, two-color display screen.

Q: LED dot matrix display screen LED: LED dot matrix screen and LED screen is different: LED dot matrix screen brightness is relatively low. LED dot matrix screen in LED (or light) are encapsulated into one module, generally 8*8 lamp as a module, and the LED display module is a minimum in the display unit, comprising a circuit board, LED, pan, mask.

Q: Advantages and disadvantages of LED dot matrix display screen?: Advantages: long life, high brightness, long distance effectDisadvantages: huge size, high calorific value, low resolution, not suitable for close viewing

Q: Speed is 1, the speed is faster, but the display is normal, there will be no ghosting phenomenon, when speed is 2, 3 and 4, the speed is slow, but there will be ghosting phenomenon, what is the reason ah? Solving? The following is a scan display module program #include<STC12C5A32S2.h> #include _nop_ ("intrins.h"); / / call delay function with #include i...: First, send data to the 595 mile, but not latch (do not give the SRCLK pulse), this time the normal display of the original dataNext, the 138EN is set low to turn off the display595 latch (giving the SRCLK pulse) output138ABC update display position, EN set high, open displaySo there will be no ghosting. If so, it shows that the device is slow, and proper early warning is displayed

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: 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.

Q: For example, I made a 4*4 dot matrix screen, I first row to light a lamp for second light three lights, so if I give each line driving current of 10MA, then I will be the first line of a line of 3 light spot, second light dark point? It is the brightness of each lamp dot matrix screen is the same ah, ask is how to allocate the current. Better details, thank you: There is no complete circuit, it is difficult to answer, we do not know how your screen is done.

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