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Old Jun 25, 2012, 02:21 AM
18t
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rssi question/eagle tree and frsky question

I did some searching but if these have been answered before, feel free to link me or provide a useful search term.

The first questions is can I use the rssi pin on an frsky telemetry receiver to connect to my eagle tree OSD, or is there more wiring that needs to be done? In my searching I was beginning to believe that I needed some kind of buffer to go from analog to digital.

The second question is simpler, what numbers am I looking for for bad or good signal strength? (what scale is rssi on, how do I understand its output?)
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Old Jun 25, 2012, 09:19 AM
18t
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Old Jun 27, 2012, 03:42 AM
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No buffer, just a RC filter with at least 20 ms time constant, like 22k resistor and 1uF capacitor, or variations of these values.
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Old Jun 28, 2012, 09:32 AM
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Renatoa can you tell me what type of capacitor (ceramic, electrolytic, voltage etc) and a basic circuit diagram. Gonna build one and save 25$ on the eagle tree rssi buffer.
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