I am receiving a signal via RF and using a HT12D to decode it and send a 5V DC pulse. I want to use this pulse to drive a latching relay. On the first pulse it will make the relay latch in NO position and the next time there is a pulse I want the relay to return to the NC position. I want the relay to retain its position even if the power is interrupted and if possible have a push button to change between states also. The relay needs to handle either 24V AC at 500mA or 12V DC at 500mA.
I have read about a 74hc73 to clock the signals but I became somewhat confused where to attach the signal input and it seemed to have more than one relay. Can someone help me out with a previous post and online link or some personal experience?
I am including a schematic that supposedly will allow a high signal to latch and unlatch a relay. I'm not sure what type of relay to use and where to input the 5v pulse for my HT12D at.
Could someone look at the schematic and tell me: 1. Will it work to latch and unlatch relay with input of 5v pulse from HT12D? 2. If so where should I connect the HT12D? 3. What type of relay should I use? 4. Will this reset if power is lost? I don't want that so how can I keep it from doing so.