how to encode IR signals ?

Discussion in 'General Electronics Chat' started by anuragaks10, Sep 22, 2009.

  1. anuragaks10

    Thread Starter New Member

    Sep 18, 2009
    Hey everyone,

    I have a transmitter circuit which sends a continuous wave at close to 38KHz but the problem is that standard TSOP1xxx suppress cw.

    They need a suitable data format to work which means encoded signals.

    I m using this circuit :

    I was thinking of using the LM555 timer in astable mode to generate a pulse.
    Need help on how to use it in astable mode.

    Any other means would be okay too.