Wireless Transmitter not working

[softlab]

Dear all,

I need a help to build simple wireless transmitter and receiver. I bought one wireless tx and rx and also HT12E and HT12D. I have connected all as per the circuit given at "roboticsy.blogspot.com". But I didn't get any result. Pl see the circuit design. I have used 1K in Transmitter and 56K in Receiver Circuit. I connected LED at pin 13 of HT12D. The LED did not light-up. Also, I have connected LED at the pin 17 (VT) of HT12D using 2N3904 transistor. If the HT12D receive the valid signal, the VT pin goes high. If so, The connected LED should also light up. But, it also didn't.

Can anyone able to help me in this regard? Advance thanks.

[softlab]

I have solved the problem. I have replaced 1K resistor with 1M and everything works fine.

[admin]

Glad to know you have solved your own problem. It is always rewarding to double check your circuits for correct values and cross check with datasheet.