Hello Friends, I am trying to build 4 channel RF remote control device for controlling home appliances. I am using HT 12E & HT 12D. I have attached the circuits I am using, its working but not the way I want. Every time I press one push button or any of AD8 to AD11 makes low, the respective output on HT12D is going low. When I press another push button, its resetting the previous state and making only that respective output low. I want to operate these outputs independently. For example, I will be using one output for FAN and one for Light, etc., When I want to switch on the FAN, it should not change the state of light or any other output. Can someone please help me how to achieve this? Any ideas or help is greatly appreciated.