I have interfaced an HB100 sensor with an ATMega microcontroller. It easily detects my hand movement upto 5-6" away only.
I want to extend the range of the sensor so that it detects movement upto at least 10 m. I see people use a dish antenna.
For that it requires LNB. I have no knowledge of RF, can someone please suggest how do I select LNB for the HB100? Or any other way to extend the sensing range which can save me from using LNB stuff?
