Transmitter and Receiver

Discussion in 'The Projects Forum' started by adriano08, May 3, 2010.

  1. adriano08

    Thread Starter Member

    Apr 25, 2010
    33
    1
    Hi guys.

    I am trying out this circuit but unsure about whether my connections are correct or not.

    HT12E and HT12D

    HT12E:
    For A0-A3, I set it to 1 (Vcc). A4-A7, I set it to 0 (Gnd).
    AD8-AD11, I set it 1010.
    __
    TE, I set to 0 (Gnd).
    Osc1 & Osc 2 connected with a 33K resistor.
    Dout to FM-TX1-433A pin 5 which is the Data In.

    Gnd and Vcc connections are properly connected for TX and encoder.

    HT12D:
    For A0-A7, I set it the same as HT12E for matching which is 00001111.
    D8-D11, I set it the same as AD8-AD11 which is 1010 too for matching.
    Pin 14 Din, I connected to FM-RX1-433A Pin 7 Data.
    Osc1 & Osc2 connected with a 750K resistor.
    Pin AF & Detect are NC.

    Gnd and Vcc connections are properly connected for RX and decoder too.
    *Antenna NC.

    I put 2 leds at D9 & D11 of HT12D (1010) for testing.
    Then powered up the circuit, but it did not lighted up.

    Just wondering if my connections are correct or is there any other thing I am unaware of?

    Anybody here to assist me?

    Thanks. :)
     
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