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Long detection distance
but generally speaking
which should be compatible with most Arduino layouts
20 dBm radio amplifier tested to > 1 km range LOS with Crazyradio PA
This time-of-flight (TOF) measurement enables it to accurately determine the absolute distance to a target without the object’s reflectance greatly influencing the measurement
Photoresistor/LDR Light Sensor Module due Long detection distancePhotoresistors, also known as light dependent resistors (LDR), are light sensitive devices most often used to indicate the presence or absence of light or to measure the light intensity. In the dark, their resistance is very high, sometimes up to 1M, but when the LDR sensor is exposed to light, the resistance drops dramatically, even down to a few ohms, depending on the light intensity. LDRs have a sensitivity that varies with the wavelength of the
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