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65 Threads found on edaboard.com: Pic Led Matrix
Hi Programmers. i want to make Arabic Language led matrix display . And i have no idea where to start . I have made English led matrix display. 132529 132528
The 4017 can drive led's directly as long as it's only a few mA per pin. (Can't advise about the pic.) Did you intend to bias the PNP's so that one is turned off while the rest are turned on? Off=bias 4.5 to 5 V. On=bias 0 to 4.3 V.
Not clear, you need depict few more elaborated the the problem.
Hello, I am new to pic UC and i am in learning phase. well i am getting problem in simulating Dot matrix that when i display only static 6 characters on the 6 8x8 dot matrix. they look perfectly fine. but when i increase the dot matrix, let say 8 8x8 dotmatrix the characters dont display properly and (...)
I needs your helps to design led DOT matrix DISPLAY USING pic MICROCONTROLLER. I get some nice video in youtube. please help me....
Hi I am trying to interface pic+MAX7219 Dot matrix led Display. but until now i can not build any library for 7219 display.:cry: can anyone help me in building a library for pic16f877a+MAX7219 Dot matrix led Display.
In this case I'd use one of the following: 1. Microchip pic 2. Atmel AVR 3. Si-Labs 8051.
but its not working how can i circularly shift 2 dimensional array Why don't you post a link for a video that depicts the problem more clearly ?
hi, i created a 7X32 led matrix for text scrolling with the tutorial posted in Embedded Lab .com MCU IS pic 18F2550 CRYSTAL 20 MHZ 7 rows are scanned with cd4017 and goes to uln2803 and to matrix 32 columns are driven by chained 4 74hc595 shift registers I can scroll text from right to left without any problem (...)
if you do a web search for pic and lcd display it will give you plenty of links for hardware and programs
hi frndzzz, i am trying to do some fast data communication project... serial UART of pic not fulfilling my requirement... so it possible i can send data from one controller to other controller using their USB port????? thx
talking electronics have a good display using pic has six buttons for up,down,left,right,store and delete.check it out. www.talkingelectronics.com.or just google talking electronics.com.all the best.
I have seen this driver board along with some MCU and RTC clock chips. Can i use it as 8x8 matrix board with my pic ? Because on the site they have defined it can work with ICSP & Attiny Atmel MCU. Please confirm me can i use it with pic MCU ? us
The pic you want to use can drive up to 13 leds (13 I/O pins are available), but if you intend to use some I/O pins for other purposes you should use a led driver. A led driver is an integrated circuit that decodes an input code and outputs high or low (based on the code you send) on the pins used to drive the (...)
Hello Kanna, I had done an experiment in past with pic18F4550 and 8x8 led matrix display. I had implemented text scroller. You can find this post at following url: You will find source code, schematics and firmware example. If you still have any question please dont hesitate to ask. Regards
Hi all. I am working on led dot matrix produce by Sure Electronic which the board uses Holtek chip (HT1632). Does anyone know on how to develop program for this chip? Currently I am using pic16F877A. I am not very familiar with pic. I search for information on the net and most of them recommend SPI module. Here is the (...)
Good job!Now,i driver one 32x256RGB led matrix display.but i not use pic MCU and TLC5940.however,i think you are doing very nice project!if you can drive more area,and add communication,PC message editer software,it's will be perfect!
are you connecting this led'S to the microcontroller pin directly? are you using any transistor switch? which microcontroller you are using? Give me your circuit diagram.... Micro controller pins will handle only upto 25mA(this is for pic & may vary for diff type of uC) & if the current exceed it could damage the port pin... Connect the anode of
in my project i use scrolling matrix led...anybody tell how to interface with pic to matrix led and how to write program for that........
Hi, I just finished of with my development board. I'm using Proton 7 for compiling and the problem is that the led matrix I've connected with the zif adapter to toggle isn't working. I checked all the points of testing and it's working fine. I tried my chip on my friend's db and the led matrix is toggling up. Can anyone (...)


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