led display circuit.
hi to all.
i need a help about my project on message display through led's. i have gone through various circuits but the thing is we have been instructed not to use microcontrollers and programming. can anyone provide me with some details. i would be grateful is there could be suggestions on more good ideas for the project provided they do not involve programming and microcontrollers.
i need a help about my project on message display through led's. i have gone through various circuits but the thing is we have been instructed not to use microcontrollers and programming. can anyone provide me with some details. i would be grateful is there could be suggestions on more good ideas for the project provided they do not involve programming and microcontrollers.
Replies
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d_vipulHey Nenu,
Please mention what you want to display????
And How????
Then only we can answer on this.......
Regards,
VIPUL -
Harshad ItaliyaDisplay using LED and not Using Microcontroller... seems weird.
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a.alandkarHello,
You may use different logic Gates, but its totally dependent on what you want to display.
Regards :
Ambar -
Hari Prasath😁😁I tried using 27C256 EPROMS to animate 8*8 led matrix😁😁.
The chip holds 32 kilobytes of data which equates to 4096 frames of animation. A 32 kHz clock circuit works with some ripple counters to scroll through each byte of stored data, turning on the columns while sinking the proper row. Of course current protection is a must so use a ULN2308A darlington driver and some 2N2907 transistors at work, but you won’t find a programmable micro-controller.😒😒😒 -
a.alandkarHey Congrates..! That's really great.
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d_vipulnice dude..............
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Hari Prasath
nothin spl mate..😁a.alandkarHey Congrates..! That's really great.
😛any time anyting. u can ask me abt electronics...;-)😎 -
PraveenKumar Purushothaman
Wow awesome! Why is the security stuff been used here???deal2die😁😁I tried using 27C256 EPROMS to animate 8*8 led matrix😁😁.
The chip holds 32 kilobytes of data which equates to 4096 frames of animation. A 32 kHz clock circuit works with some ripple counters to scroll through each byte of stored data, turning on the columns while sinking the proper row. Of course current protection is a must so use a ULN2308A darlington driver and some 2N2907 transistors at work, but you won’t find a programmable micro-controller.😒😒😒 -
a.alandkari am working on avr (ATtiny2313) but the problem is its sending me garbage value when i try to communicate serially. Please help if you can
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PraveenKumar Purushothaman
Please refer: #-Link-Snipped-#a.alandkari am working on avr (ATtiny2313) but the problem is its sending me garbage value when i try to communicate serially. Please help if you can
For the garbage value thing, you should first purge electronically, when the memory is accessed for the first time. -
a.alandkarits one and the same thing.
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