I am using these 433MHz modules. According to the product information, I can supply the transmitter from 3-12 Volts. I am sending the data from an arduino (5V data) and want to power the transmitter with 12V that I am still be able to receive the data some meters away from the transmitter.
Can the transmitter still determine if it was a high or a low, when it is powered with 12V and the max data voltage is 5V or do I need a driver circuit?
Answer
Old question but still relevant and high in google results.
Just connect your 5V data output to the data input of your emitter and the 12V from your power supply to the VCC of your emitter. I've done it and it works.
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