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117 Threads found on edaboard.com: Pic Led Matrix
Just program it in pic is easier. Or using an IC.
I've got a 8x5 led matrix, with common anodes and cathodes lined up. Now, of course, I can command it from a uc (like a big pic, 16f877) but it's not too bright, because the pic can't really source too much current, and it has to be multiplexed. So, I want to build a power level for it, with transistors. Of course, we can (...)
Hi, Did you check it? K.
i want to make big led matrix display but i dont know how to start i know how to use pic . pls can u help me ? what is the standard siz of led matrix? what alternative methodes do i have for making the display and what is the avantage and disadvantages of those methodes tnx
start with smaller one, maybe this topic help you.
hello i am about making led matrix project like mr ilker_32 posts here but my problem is the short memory of pic 16f877a i need help for using an external memory like 24c64 to save my text in it and how to programe it via rs232 and how to call my messege saved into 24c64 and display it on m
i need help about my project.. it uses pic16f84a.. any idea? source? links? plz plz plz.. i need help :(
Hello- I am designing a 8x8 led matrix with RGB leds. So 192 leds altogether. I want to control them using PWM so that I can have all of the colors. I am going to use a pic with 5-8 PWM channels. I am looking at some different led drivers from Allegra and also from ST Microelectronics. (...)
I have another led matrix has 12x12 pin. can you tell me how can i find connect this to a pic.
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 (...)
Hi, Please, look at There is a good implementation of a moving led display using pic uP but the principe used here may be adapted easyly to a 8051. Regards.
i try to make a rotating text on eight 7x7 led matrix displays with two max6952 IC's how can i connect a microcontroller to this chip ( PINS DOUT, CLK, CS, and DIN) Link to max6952 Please give me a schematic with software
Hi there...:) I am a final semester student, who is currently doing a project called Programmable Dot matrix Display System. My project work like this.... Short messages are read from textfiles then they are sent out in a serial communication method. There is one more thing you should know, my project didnt include pic and (...)
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Hello boys, Does anyone used the max6953 to drive 4 5x7 led matrix displays? I would be very grateful for some sample code to address the max6953 from a pic(16f84A). I have difficulties understanding the protocol from the datasheets. Thanks Nikos Geronikolos
'leddrvr' is a simple 7-segment led display driver system using pic technology. The idea is to use minimum parts count to drive up to 4, 7-segment leds. This is also a useful introduction to some of the pic microprocessor programming techniques insofar as 'leddrvr' exercises many of (...)
I just want to ask if this chip a stp16c596 is capable of running a dual color matrix located at the bottom of page by it's self in place of 2 74hc595 and 1 uln2803 to run it.I'am not too good with the datasheets and i'am unsure it can handle the current properly.I want to make a moving display with 8 or 10 of these matrix's and the fewer chips the
Hello everybody I want to make one project that support to my Master programme. That project is pic (16F628A) accepts the every character from usb and display on the led matrix array .The character display is at least 10 character and more how to accept the character . Can anyone help me and Thanks.
when using my pic simulator. there are outputs. but in implementing my design, there are absolutely no outputs visible. what is the correct way to connect pin 1 of pic16f788? what about pin 11,12,31,and 32? what about pin 13 and 14?:cry:
Hello Friends, I am a hobbyist, and enjoyed my time learning pic microcontrollers. I have developed a barely basic, pic training kit for my friends. This kit is based upon pic 16F628A @20MHZ, and comes complete with a training manual, and PROTON-BASIC lite compiler. The training manual takes you through all the steps, from installing the (...)
Hi for all, I use led driver (picture 1) drive led matrix 5x7 (one led is 5mm, picture I buy led matrix but larger with 2x5mm led (5x7, picture old le
Hi, Recently I got a gaming machine display board from ebay, It has 6 5x7 matrix ,32 bar graph led's and 4 MM5450 controllers. Is it possible to use these controllers with AVR or pic to make a moving display..? I am attaching the circuit and the picture of the pcb.. Thanks Surej
Anyone please I need some help/idea on how to implement this pic/microcontroller project: I need to implement a pic project ( possibly 16F84) that controlles 8 set of led that can turn ON/OFF and any of this led can, according to program parameter, display 7 color. In another words I need to controll a 8X7 (...)
i need help to have tis project working. first of all i would like to say i am very new in this project. i am using pic 16f877a with 20Mhz crystal osc. and Hi-Tech C i need to have display a scrolling message. can anyone help me . i know how to display only single character from A to Z but i am not able to have a scrolling sentence
Hi edaboarders, I do not really understand how to use the ULN2003a for my dot matrix project. The matrix led that I have is common anode, I connect the PORT B of my pic to the ULN2003. The output of the ULN goes to the row of the matrix, the PIN 9, of the ULN is connected to +5V and the PIN 8 to GND. (...)
Hi edabaorder, I need the assemlly code for scrolling a 4x3 keypad with pic 16F84. Please refert me to a functional code or share your the code if you have. I'll give 50 pts for helpers. Merci.
check this out
hi to all again.. thanks to the one replied to me..but still I have a blurred idea of how will I make my own display..I just have a little span of time.. I'm planning to make a cascaded 5X7 dot matrix display that would be interface in the computer through parallel port.. The project should be a PC- based application and will be run through VB sinc
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hi, can any one help me to build a moving display using pic 16F877 and four 5x7 led matrix in c (MikroC) Thanking You Soina see here in the forum thread
//pic 8char dotmatrix, switchable to static-scrolling //prg lenght 1077 words, made by zuisti, 29.08.2007 //for a simple and fast PROTEUS simulation I am not using line drivers ! #define COMMON_CATHODE #define BUFFERSIZE 56 //max. 54 chars (and 2 gap space) for scrolling message char buffer; //display buffer: 8 chars +
Hi, You can learn it here; pic Tutorial* Thirteen - Multiplexed led's Nigel's pic Tutorial - matrix led Board with shift
You could check VASCO JOSE's site (just google) for an 8x8 or 8x16 display. Also there is another active thread on EDA on the same topic, you can benefit from it.
MOVING MESSAGE DISPLAY - Sonsivri need help in moving message display using matrix leds(8 bit) - All About Circuits Forum Check these links, may be it will helpful for u.
Hi everybody Like to make a scrolling message (using led matrix) in mikroc (pic16f877a) pleas help me how can i make it can you anyone put the sample code ? thanks in advance
had for a while some of Sure-Electronics' led display kit, an led unit with a HolTek HT1632 driving it and 4 * 8x8leds nicely presented. I also bought thier demo-board DE-
Scrolling Dot matrix led Display using 8051 / 8051 Projects / Downloads : 8051 Microcontroller Projects AVR pic Projects Tutorials Ebooks Libraries codes
Hi, I'm building an led display from a group of 5x7 matrices. I'm building it in stages as I have got to grips with pic programming, shift registers, multiplexing etc. My next challenge is understanding how to power it though, and I'm having no luck finding anything to help me on the web. I will be running about 10 5x7 matrices, lighting them a
Hello I build led matrix display based on 16F876 and have problem with resetting pic in most of the time when neon light is turn off in the room and pic is connected to PC. When PC and pic are disconnected everything is ok. Also every time PC is turn off, pic is reset or gets stuck. Here (...)
76944 Clock Signboard
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 (...)
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........
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
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
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
perhaps the project is so old that you might better use modern controllers like pic, Atmel etc. you may however use the components carefully salvaging from the board, or use it only as a matrix connecting another controller.
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.
Specify more about what resolution you have, or how many characters you will display, etc. I think easys way to do it, is using 5x8 led dot array, you must put 16 together, and control it with a few logic and a microcontroler like pic, to control and comunicate it with a PC using serial port.
Where to find a nice development board for pic 16F8XX (schematics + pcb) with LCD module 4 x 4 matrix keyboard 8 led RS232 interface IIC Serial EEPROM interface bootloader supported regard