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Re: Hmevision ir transmitter


  • To: ukha_d@xxxxxxx
  • Subject: Re: Hmevision ir transmitter
  • From: "andy_powell_is" <ukha@xxxxxxx>
  • Date: Thu, 30 May 2002 18:59:02 -0000
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx


Ian,

I'm actually stubling at the first hurdle here...

I have :

One one breadboard with a 5v supply a BC182, C is connected to +5v
via a resistor, B is connected to Ground (via a push switch) and E is
connected to the B of a 2N2222 on another breadboard with 5v supply
(spearate from the first one). The C of the 2N2222 is connected to 2
LED's in series with a 220ohm resistor and the E is connected to the
ground of the supply on this board.

I expected the LED's to light up - guess what? It does nothing :(

Any ideas???

I thought it was the circuit I'd drawn (uploaded to the files area)
before...

Andy :(





--- In ukha_d@y..., "Ian B" <Ian@M...> wrote:
>
> > I noticed that you said you were using 3 port pins, which sounds
> > better than using 8...
>
> Andy
>
> I think Frank has built this round a 3 to 8 decoder which means
only one
> zone could be active at any on time. Using all 8 pins of port A
gives you
> any combination you want simultaneously.
>
> Ian B


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