I have a project where I need to send a wireless signal to one of several receivers to turn on an LED.
One transmitter, several (many) receivers, each with an LED. The receivers need to have low power consumption.
- Raspberry pi
- HT12E encoder
- 433 mhz transmitter
- 433 mhz receiver
- HT12D decoder
Each individual receiver would have a unique, fixed address.
I was hoping I could use the raspberry pi to dynamically set the address of the encoder to match the relevant receiver, but I cannot figure out if this is possible. The address of the HT12 is adjusted by connecting Ax pins to ground. Can I do this with
Is there a better alternative to this? Can I use the Raspberry to simulate the signal from the encoder? The system must be possible because it is similar to restaurant pagers
This is how I am envisioning it now. Am I understanding correct? Do the address on the transmitter side match with the address on the receiver side?
EDIT: Added sketch of wiring.