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kandi X-RAY | CodeHigh Summary
kandi X-RAY | CodeHigh Summary
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QUESTION
DatabaseCoconet.java
...ANSWER
Answered 2017-Apr-04 at 06:47db.execSQL("CREATE_TABLE "+ TABLE_NAME_HIGH +" (_id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ COL_CODE_TREE + " VARCHAR, " + COL_HIGH_TREE + " INTEGER, "+ COL_STATUS_HIGH + " TEXT, " + COL_DATE_HIGH + " DATE);");
QUESTION
I'm using Android things with a VSIONIS keypad in reader mode, which outputs on D0 and D1 pins in Wiegnad 26 format. I found a few libraries on how to do this on Arduino and have ported over the code, but cannot seem to make it work on Android Things. I'm using a Raspberry Pi 3. Does anyone have any knowledge on how to make this work?
Here's the Arduino library.
Here's the ported over code:
...ANSWER
Answered 2017-Feb-15 at 23:57A couple things I noticed looking at the reference implementation you linked:
- In both of the GPIO callback functions, your version doesn't shift the bit flags into the value (e.g.
cardTempHigh = 1
should becardTempHigh <<= 1
instead). - The
systemTick
variable is not updated regularly. In the reference code, thelastWiegand
value is constantly updated from the clock. - You might look into posting both GPIO callbacks to a
HandlerThread
. Right now the code is posting all events to the main thread which might be affecting your ability to process each interrupt in a timely fashion. To do this, register your callback using theregisterGpioCallback(GpioCallback, Handler)
version of the method instead.
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