Keyes 5.1 development board pin identities

Other Hardware General Electronics
1

I was sent one of these enigmatic boards by mistake, and there was some discussion of it in this forum here

I thought I would work out the identities of all the pads by continuity testing, and I'm posting my findings here in case anyone else finds them useful.

Keyes5_1_annot.png
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2

thank you for this. i has this exact shield for almost a year now and i ignored it because i didnt know how to use it.

kind regards,
-thekikicat

3

So we can see it:

7ffd96137e038c247ff109a9fc7e9f3ff686dd06.png
7ffd96137e038c247ff109a9fc7e9f3ff686dd06.png907×706 1010 KB

4

Thanks for the info.

A couple of differences I noticed with the board I have is the J6 K pin and the Nokia GND pin are linked but not connected to ground, I had to ground them myself.

Also the LCD R/W pin is not ground, it is connected to D11, which needs to be programmed as low output.