I have ordered this device AD8318, the datasheet can be seen here, http://www.analog.com/media/en/technical-documentation/data-sheets/AD8318.pdf And, the actual module using this device, and ordered, shown here: https://www.ebay.com/itm/1PC-AD8318-RF-1-8000MHz-logarithmic-detector-70dB-RSSI-measurement-power-meter/142140981389?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
What I would like to do it use an LM3914 bar graph and show the RSSI in the series of 10 leds, which would provide the signal strength of the rf field it detected.
If I am reading this data sheet correctly, it produces a positive voltage on the output pin of 2.1V when signal strength is at its' LOWEST, and a 0.6V output at the HIGHEST detection signal it is capable of.
I would simply like to invert that, having the 2.1V when detecting the HIGHEST signal possible, and the 0.6V when detecting the LOWEST signal possible. Even better would be the capability to make that output between 0.0V and 1.5V.
What I would like to do it use an LM3914 bar graph and show the RSSI in the series of 10 leds, which would provide the signal strength of the rf field it detected.
If I am reading this data sheet correctly, it produces a positive voltage on the output pin of 2.1V when signal strength is at its' LOWEST, and a 0.6V output at the HIGHEST detection signal it is capable of.
I would simply like to invert that, having the 2.1V when detecting the HIGHEST signal possible, and the 0.6V when detecting the LOWEST signal possible. Even better would be the capability to make that output between 0.0V and 1.5V.
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