wifi-password | Get current wifi password | Wifi library
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kandi X-RAY | wifi-password Summary
Get current wifi password
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QUESTION
I am working with the NodeMCU V3 module. Whenever I try to make an http request to my server, the module crashes.
Here's the code:
...ANSWER
Answered 2020-Jan-12 at 07:40There is no need to re-create the WiFi and HTTP clients in the loop()
over and over again. You can declare them once globally. Here's a stable version of this simple sketch:
QUESTION
and my setting.text
"\n -----------Time----------- \n t=(2019,5,23,4,40,00,4,143) \n -----------Wifi----------- \n w_e=any-wifi-name \n w_p=any-wifi-password \n ----------Wifi_new---------- \n w_n_e=wifi_name \n w_n_p=wifi_password \n ---------Nodemcu_wifi--------- \n n_e=KENOK KENOK \n n_p=123456789000 \n -----------End----------- \n"
-----------Time-----------
t=(2019,5,23,4,40,00,4,143)
-----------Wifi-----------
w_e=any-wifi-nam
w_p=any-wifi-password
-----------Wifi_new-----------
w_n_e=wifi_name
w_n_p=wifi_password
-----------Nodemcu_wifi-----------
n_e=KENOK KENOK
n_p=123456789000
-----------End-----------
i want to find w_e=********** . only star(any wifi essid) Without w_e= .how find? my code not work .how fix it?
...ANSWER
Answered 2019-May-24 at 01:54Without using a regular expression - iterate over the file; find the line that starts with 'w_e='
; extract the essid from that line with a slice.
QUESTION
In this part of my app I trying to save the result data that getting from retrofit onResponse method into sqlite database, but I getting multiple E/SQLiteDatabase: Error inserting
errors with android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed:
The log
...ANSWER
Answered 2019-Jan-30 at 19:26The issue is that the id column is not UNIQUE, this isn't an error as such rather that the exception has been trapped, as effectively INSERT OR IGNORE is being used, but is being written to the log. However, the row, when this happens will not be inserted.
The id column is defined using INTEGER PRIMARY KEY this implies a UNIQUE constraint, it additionally makes the column an alias of the rowid, which then makes the column have a special attribute/handling case. That is, if no value is specified then SQLite will generate a unique value. That value will be a unique 64 bit signed integer, initially 1 and then generally 1 greater that the last value.
Typically no value is supplied for such a column and the SQLite generated value is used.
I'd suggest that you change to using the typical use and thus amend your addItem method accordingly e.g. :-
QUESTION
I want to combine a HTTP-Client and a SD-Card-Reader. My goal is to download a file from a server and save that file on the SD-Card. Unfortunately Im stuck on the way, because of an Hard Fault 0x80FF013D.
I haven broken down the code and recognized in summary:
- network communication (GET-command) works fine solo
- SD-Card access (read and write) works fine solo
- SD-Card access works fine before building up the network connection
- Hard Fault occures, when I access the SD-Card after building up the network connection
Core-Infos:
- OS: MBED OS5
- IDE: MBED CLI v1.8.2
- MC: NUCLEO-F746ZG
- SD-Card Reader: CATALEX MicroSD Card Adapter with Transcend 2GB microSD (FAT formatted)
Libraries:
- mbed-os https://github.com/ARMmbed/mbed-os/#e1bea44212b8275f7d8ce7253e758c2e25c57482
- sd-driver https://github.com/ARMmbed/sd-driver/#a8c85d30af86a7431d85dee02d133d60dd386406
[NWKH] Connecting to network...
[NWKH] Connected to the network
[NWKH] IP address: 192.168.188.29
Test SD-Card++ MbedOS Fault Handler ++
FaultType: HardFault
Context:
R0 : 20000400
R1 : BFF39B82
R2 : 08025B6A
R3 : 00000003
R4 : 00000000
R5 : 2000FA34
R6 : 84551677
R7 : 7FFFFC00
R8 : 00000003
R9 : 08025B6A
R10 : 2000FA34
R11 : 00000000
R12 : 08013E6D
SP : 2000F9F8
LR : 0801A8E7
PC : A0000000
xPSR : 210B0000
PSP : 2000F990
MSP : 2004FFC0
CPUID: 410FC271
HFSR : 40000000
MMFSR: 00000001
BFSR : 00000000
UFSR : 00000000
DFSR : 0000000B
AFSR : 00000000
Mode : Thread
Priv : Privileged
Stack: PSP-- MbedOS Fault Handler --
++ MbedOS Error Info ++
Error Status: 0x80FF013D Code: 317 Module: 255
Error Message: Fault exception
Location: 0x8012A7B
Error Value: 0xA0000000
Current Thread: Id: 0x2000DA34 Entry: 0x8012BEB StackSize: 0x2000 StackMem: 0x2000DA78 SP: 0x2004FF58
For more info, visit: https://armmbed.github.io/mbedos-error/?error=0x80FF013D
-- MbedOS Error Info --
I have started with the http-example from mbed https://os.mbed.com/teams/sandbox/code/http-example/file/2efadc4d8784/source/main-http-socket-reuse.cpp/shortlog/
and added some stuff from the sd card file system example https://os.mbed.com/cookbook/SD-Card-File-System
main-http.cpp ...ANSWER
Answered 2019-Jan-26 at 11:22This board has conflict pin D11. It used by ethernet and both your SPI. You need to use another SPI pins or follow guide from mbed site to fix board:
If you use both SPI and Ethernet You have to patch the NUCLEO board on the back side:
- remove SB121 and close SB122 solder bridges. This will connect PB_5 to D11 instead of PA_7.
- Overwrite the d11_configuration by using the mbed_app.json file and use PB_5 (instead of PA_7 default value).
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