Search found 44 matches

by statbat
Thu Jun 16, 2016 7:53 am
Forum: Dot Matrix Display
Topic: trying to build a scoreboard using DMD
Replies: 14
Views: 11186

Re: trying to build a scoreboard using DMD

You don't need to go back to uni. I probably started messing with hobby electronics 4 years ago and wouldn't have dreamed making something like this was even possible. I was wondering if you have some electrical degree or not. I am glad you dont have one :D It gives me hope that I can also make my ...
by statbat
Thu Jun 16, 2016 7:30 am
Forum: Dot Matrix Display
Topic: DMD with IRREMOTE library not work good
Replies: 12
Views: 11459

Re: DMD with IRREMOTE library not work good

statbat, I have not done much with the DMD2 library except for an initial play some time ago so I cannot help you there. I have used the earlier library and have made numerous mods to it to achieve what I wanted it to do. One thing that might be an issue is the number of DMDs you are trying to use,...
by statbat
Wed Jun 15, 2016 3:18 pm
Forum: Dot Matrix Display
Topic: trying to build a scoreboard using DMD
Replies: 14
Views: 11186

Re: trying to build a scoreboard using DMD

I can't afford expensive. For the design I''m using the free and open source KiCad, available from kicad-pcb.org . That's not the only free option either. There are heaps of places to order your PCBs online, but these 3 were done at dirtyPCBs for about USD$1.40 each. Keeping the board to 50x50mm wa...
by statbat
Wed Jun 15, 2016 10:12 am
Forum: Dot Matrix Display
Topic: trying to build a scoreboard using DMD
Replies: 14
Views: 11186

Re: trying to build a scoreboard using DMD

These are PCBs I've designed which combine the ATmega328 microcontroller used on the arduino with the other features needed including the header of the DMDCON for the ribbon cable that goes to the DMD array. These and the other two custom boards are programmed using the Arduino IDE so are to all in...
by statbat
Wed Jun 15, 2016 7:39 am
Forum: Dot Matrix Display
Topic: trying to build a scoreboard using DMD
Replies: 14
Views: 11186

Re: trying to build a scoreboard using DMD

stryker wrote:
2016-03-27_17.25.13.jpg
Display (slave) modules that run the DMD arrays
What is this that controls DMD. I have always used arduino to control the DMD. It is something totally different.
by statbat
Wed Jun 15, 2016 7:33 am
Forum: Dot Matrix Display
Topic: help to make prayer time clock by arduino and dot matrix display
Replies: 9
Views: 11312

Re: help to make prayer time clock by arduino and dot matrix display

thank you stryker I am a beginer if you have time Can you help me diagram for connection method And the code compiler Like Stryker said, you should make the project step by step. First get the program til where you can get the correct times for your city. I believe that latitude and longitude you c...
by statbat
Wed Jun 15, 2016 6:22 am
Forum: Dot Matrix Display
Topic: DMD with IRREMOTE library not work good
Replies: 12
Views: 11459

Re: DMD with IRREMOTE library not work good

And my IRRemoteInt.h looks like this //------------------------------------------------------------------------------ // Define which timer to use // // Uncomment the timer you wish to use on your board. // If you are using another library which uses timer2, you have options to // switch IRremote to...
by statbat
Wed Jun 15, 2016 6:14 am
Forum: Dot Matrix Display
Topic: DMD with IRREMOTE library not work good
Replies: 12
Views: 11459

Re: DMD with IRREMOTE library not work good

I didnt get a chance to work on it. I will try more and update you with more details. Thanks Here is my code. It does not work. I am trying with Arduino Mega. //////////////////////////////////////////////////////////////////////////////////////////////////////////// // // DMD LED Matrix // ///////...
by statbat
Mon Jun 06, 2016 10:27 am
Forum: Dot Matrix Display
Topic: Safety for the DMD Display circuit
Replies: 5
Views: 4502

Re: Safety for the DMD Display circuit

statbat, That will depend on how you have set up the MOSFET circuitry. If it is as a switch in series with the power supply then you have double-barrel protection to some extent; if it is as crowbar protection (across the power rails) then definitely NOT good. It is in the series. I will make a dia...
by statbat
Sat Jun 04, 2016 5:48 am
Forum: Dot Matrix Display
Topic: Safety for the DMD Display circuit
Replies: 5
Views: 4502

Re: Safety for the DMD Display circuit

statbat, A fuse is the obvious answer, but one of the certainties with electronics is that the critical components fail MUCH faster than a fuse blows. While a fuse may not protect the electronics, it should prevent things going up in smoke or burning the house down. A fuse is there to protect the p...