Flakey Pn532 NFC connection

[slothrop69]

I'm using the USB FTDI cable to connect to the board and my connection is really flakey. It recognizes the device some of the time not all the time

nfc-list uses libnfc 1.6.0-rc1 (r1326)
No NFC device found.
[root@localhost libnfc-1.6.0-rc1]# nfc-list
nfc-list uses libnfc 1.6.0-rc1 (r1326)
NFC device: pn532_uart:/dev/ttyUSB0 - PN532 v1.6 (0x07) opened

What can I do to improve the connection?

[slothrop69]

I should also add that I have to wiggle the plug and the board around quite a bit to get it to connect to begin with. Do you have anything on your shelves which would connect between the cable and the board that would give me a stronger connection?

[adafruit]

honestly, its probably the software that is flaky - libnfc is only test software and it uses TTL which can easily 'get out of sync'

[slothrop69]

The LED for the power seems to go off as well at times. I would like to verify that it is the software. Is it not plausible that the power could be connected at times but not logical wiring? I want to verify all the logical channels on the device are connected at all times. How can I do this?

[adafruit]

use a multimeter to check continuity, you can also post a photo, could be your soldering is loose

[slothrop69]

Can you post a photo or a diagram where on the board I should touch the needles of the multimeter to check for continuity or could you tell me which labelled pin out should connect with which label on the board with ftdi cable??? I see pinouts for NC, TXD, and RXD but I'm not sure what they are supposed to be connected with on the board.

[adafruit]

please Post a photo of your setup