I am working on a project where. I have to wirelessly check normal 4whether any of four switches isare pressed or not wirelessly and I don't want any micro-controller atto use a microcontroller on the transmitter side . iI have worked with the 434mhz the cheap 434MHz HT12E/D modules with ht12e/dbefore, but they get jamjammed when more then one transmitters are onis transmitting at the samea time .plese give Are there any alternate solution for checking the state .alternative solutions to this problem?