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hamjudo  
#1 Posted : Sunday, July 10, 2016 1:48:30 AM(UTC)
hamjudo

Rank: Newbie

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Joined: 7/10/2016(UTC)
Posts: 1
United States

I am using a wt51822-s4at with an Arduino compatible board. My commands were just a single character.
I found that the module stopped receiving bluetooth packets after I use the Wireless-Tag app to send a single character such as "0", or "R".
The first packet will get through, but later packets do not. As long as I send two or more bytes, the module works just fine.

When it is in the confused state, it sometimes sends fragments of character strings multiple times that it receives from the Arduino.

I am working around the problem by sending two byte packets.
Sky  
#2 Posted : Wednesday, August 17, 2016 5:54:10 PM(UTC)
Sky

Rank: Newbie

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Joined: 8/17/2016(UTC)
Posts: 1
China
Location: SHENZHEN

Hi , it is should be the APP problem , could you try the third software "lightblue" from ios
Mortadha  
#3 Posted : Thursday, September 01, 2016 11:20:13 PM(UTC)
Mortadha

Rank: Newbie

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Joined: 9/1/2016(UTC)
Posts: 1

Hi,
I have the same issue using my module. I think that the problem is not related to the APP we're using because i still can get the second character after sending an AT command to the module. For example when i send "AT" as a command to the module, i get "OaK" as a response, where 'a' is the character i sent to the module for the second time from my APP.
So the problem is all the data will remain inside the buffer after receiving a single character.

Edited by user Thursday, September 01, 2016 11:21:37 PM(UTC)  | Reason: Not specified

lorenzofm  
#4 Posted : Tuesday, November 29, 2016 2:52:47 PM(UTC)
lorenzofm

Rank: Newbie

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Joined: 11/29/2016(UTC)
Posts: 1
Italy

I have the same problem.
There is a buffering issue that is not immediatly evident at a first test.
I'm looking for a way to reprogram the firmware but the nrf51822QFAAG11 is an old silicon release and is not compatible with recent SDK... so all is more difficult, and take more time.
I'm really disappointed! I'm in trouble because of this!
I expect a solution from wireless-tag... a workaround or, better, a firmware update...
I see no response on this forum, and I think is not a good sign.
Wireless-Tag, please take charge of the problem.

JK.SHIN  
#5 Posted : Wednesday, February 22, 2017 10:25:34 AM(UTC)
JK.SHIN

Rank: Newbie

Groups: Registered
Joined: 2/22/2017(UTC)
Posts: 1
Korea, Republic Of

Is this problem resolved?
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