Objective: I am trying to build a transmitter that transmit an on signal when a button is push. The transmitter will need to be small enough to wear or hold in a pocket. I prefer not to use any microprocessor or encoder for the transmitter. For the receiver, it have to be able to receive the signal from the transmitter and play an alarm.
433Mhz RF transmitter and receiver: https://www.amazon.com/UCEC-XY-MK-5V-Transmitter-Receiver-Raspberry/dp/B017AYH5G0/ref=sr_1_1/163-3850928-5773553?ie=UTF8&qid=1470685976&sr=8-1&keywords=rf+transmitter+module
Question: I am planning to use a 433Mhz RF transmitter and receiver. Since I am only sending an on signal, I wonder if I can just send a voltage as a signal or data through the data pin on the transmitter chip. Would that be possible for the transmitter to transmit such data and for the receive to interpret it as a 1 or an on signal?