433MHz Transmitter/Receiver pair using the HT-12D/HT-12E Encode/Decoder to exchange data. Got off ebay 433MHz RF Transmitter/Receiver
Firstly the HT-12E transmit circuit is working with another circuit using A0-A7 tied to ground.
What I'm attempting to do is dynamically set the HT-12D's address to either 0 or 1. On some datasheets it says to either tie to ground or leave open on others it says can be tied to either VDD or VSS. So I reakon my question is will this work if I use an ATMega328P (UNO) to set the address or not.
I've tried setting all to LOW and variations between and can't get it to work.
The Shift register (74HC5595N) is getting set correctly, the receiver has data coming in when I xmit data but seems like the addressing is just not working.
Additionally all 4 data inputs stay at HIGH level.
Any help much appreciated!