[Ronja] final 350mA transmitter

Saad Shakeel hybrid.parameter at yahoo.com
Sat Feb 2 20:06:55 GMT 2008


 Good work, We've all been looking for some alternative...
   
   Can you include the schematic of the circuit  on your blog too.
   
  You've mentioned 74hc245, but the pic has some other components too? 
   
  Thanks
   
  Saad

Jakub Ladman <ladmanj at volny.cz> wrote:
  Dne Saturday 02 February 2008 14:20:33 Pramod yaduvanshi napsal(a):
> Hi all ... please check out my blog now .. after i have made the circuit on
> PCB and using proper coaxial cables and filtered the inout power supply .
> http://luxeonstar.blogspot.com/

I think even coaxial cable to led is bad.
It reduces EMI polution, but the inductance of wires is high, so fast current 
changes are impossible.
Place the LED as close to driver ic as possible.
Then try some data flow test and tell us the distance from transmitter to 
receiver, where is not any packet loss yet.
A standard ronja distance is about two meters, which corresponds to 1400m with 
optics.

Jakub Ladman

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