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Getting started with the “wifi 4 click” board

Question asked by meerian.matt on Dec 22, 2015
Latest reply on Dec 28, 2015 by meerian.matt

I’m trying to get up and running with the “Wifi 4 click” module.  This board has a SPWF01SA wifi module.  My power supply is set to 3.30V with a current limit of 2A.  I’m using a 3.3V, USB to serial breakout board (FT232R breakout board) between the windows desktop and the module.  I’m using bray’s terminal on the windows side of things.  When I power up the module, this is what I get:

+WIND:1:Poweron (141106-0950875-SPWF01S) 

+WIND:13:ST SPWF01SA1 IWM: Copyright (c) 2012-2014 STMicroelectronics, Inc.  All rights Reserved.

 

 +WIND:3:Watchdog Running

 

 +WIND:0:Console active

 

 +WIND:32:WiFi Hardware Started

 

 +WIND:21:WiFi Scanning

 

 +WIND:35:WiFi Scan Complete (0x0)

 

 +WIND:21:WiFi Scanning

 

 +WIND:35:WiFi Scan Complete (0x0)

 

 But, when I send in any “AT” or and other command, the module does not respond and seems to lockup.  When I received the module yesterday, I would occasionally get an “OK” to an “AT” command and other commands would occasionally work.  Using an o-scope now, the serial comm seems to be getting to and from the module. (Is it normal for the serial out from module to peak at only 2.5V?) 

 

Are there any ideas on how I can resurrect the module?
-matt

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