AsyncLabs Forums

[John_Ryan]

I've searched everywhere for rssi_max but there's nothing in the zerog 2100 documentation.

Provided max is known, then (reading / rssi_max x 100) equals "approximately" the signal strength percentage.

I'm assuming the rssi_max is 256, so our 130 / 136's is roughly 50 percent, give or take.

But its weird we're both getting 130 / 136 .. a coincidence perhaps?

When I get a moment I'll move the shield right in front of the router and see how that affects the reading.

[spidermonkey04]

Found it! The valid range for this number is 100-200.

Code: Select all

ROM FAR tRssiQuanta g_rssiTable[MAX_RSSI_TABLE_SZ] = { {200,181},
                                                       {180,161},
                                                       {160,141},
                                                       {140,121},
                                                       {120,100} };

But this still makes me wonder why it's 2 bytes. I saw something on the microchip site about LSI (Link State Indicator) plus I noticed ONE time that when my connection dropped, this RSSI number whas around 35,000. So maybe the first byte is this LSI? Back to the Docs...
---Jared

[John_Ryan]

Superb!

So my 136 now translates to 68% - which is closer now to my belkin wireless utilities 81% signal strength.

[GregEigsti]

Great work spidermonkey04! I really appreciate your work and followup on this! I'll implement the math to get a percentage value on the client side (Mac OS app) for the kitchen lighting project.

Thanks for contributing and for being a valuable asset to the forums!
Greg