So I upgraded a previous design and used a nice numeric LCD display. The RSSI voltage is converted to a 0-100% value (0= no RF signal, 100 = full RF signal). A percent value is so much easier on the eyes than the raw RSSI voltage.
Here's the front view of the prototype:
Here's the back view. The lower left shows a hidden calibrate push switch. That is to say, because every receiver is different, there is a built-in utility that automatically calibrates things for a 0-100% range.
Here it is wired to a typical 900Mhz Rx (three wires: Power, Gnd, RSSI).
This is NOT a open source project since I am considering commercializing it later this year. But if there is any interest in it now, I can have some made for a special forum member purchase. Like some of my past specials, it would be a discounted price and limited to *registered* rc-cam forum members. Target price for this deal will be around $25-$30. If interested, then post your "I want one" in this thread (please do NOT email or PM me). If there is enough takers I'll get some built later this month.
Edited by Mr.RC-Cam, 02 June 2010 - 08:34 AM.