How to increase a rf receivers pin voltage

Projects General Guidance
1

Hi guys

I want to increase my RF receivers voltage on the pins, i think at the moment when the pin goes high its around 2v, I need it to trigger a ultrasonic sensor which needs 5v.

Is there anyway to do this ?

Any help will be much appreciated.

Thanks

2

What RF receiver are you using, what pin are you referring to and are you trying to directly trigger the US from the receiver?

3

Hi I am going to be using these http://www.seeedstudio.com/wiki/index.php?title=315Mhz_RF_link_kits_-_with_encoder_and_decoder

I am referring to the output pins on the receiver, yes I am trying to trigger the US directly.

4

Use a transistor logic buffer. Its just 2 transistor inverters connected to each other. Simpler Inverter The output of one goes into the input of the other, and use that to trigger the US sensor

*Link fixed.

5

Thank you that makes sense .

6

According to the PT2272 decoder chip data sheet, the output pins are normal digital outputs. So if you are powering the receiver with 5 V, then the outputs will be either low (about 0 V) or high (about 5 V) depending on what data the transmitter is transmitting. If the output is 2 V, something is wrong.

The application example in the data sheet shows the PT2272 output powering an LED through a 560 ohm resistor, so it certainly should be able to trigger another digital circuit.