LAMW arduino serial comm via android usb otg

[Mongkey]

https://hingxyu.medium.com/arduino-android-serial-communication-b72b124142fb

[jmpessoa]

Done!

New "jsArduinoAflakSerial" component!  (need tests!)

New demo: "AppCompatArduinoAflakSerialDemo1" (need tests!)

Thank you!

[Mongkey]

@mr jmpessoa this spinner need to be commited,

https://forum.lazarus.freepascal.org/index.php/topic,65168.0.html

Thank you

[jmpessoa]

Done!
2 days ago!

[Mongkey]

Ok

[Mongkey]

after 2 years  , failed to load aflak serial, thank you

[jmpessoa]

Hi, Mongkey!

Can you look for:

Code: Pascal  [Select][+][-]

1. public java.lang.Object jsArduinoAflakSerial_jCreate(long _self) {
2.   return (java.lang.Object)(new jsArduinoAflakSerial(this,_self));
3. }
4.  

in your project "Controls.java" file?  (at end of file....)

[Mongkey]

i could not find this object, mr. pessoa, i even not seeing jsArduinoAflakSerial.java at source directory.

i used https://github.com/ksksue/PhysicaloidLibrary/tree/master , openotg aia sample, this lib using ai2 inventor for arduino it succeed reading cdc type usb, ch340x type usb

[jmpessoa]

Can you try/reload   "AppCompatArduinoAflakSerialDemo1"  ??

[Mongkey]

i got this error, thank you

[Mongkey]

it was run, but nothing happened, i did wireless debugging for testing, i got this, ha ha this kind of a hard component development

Code: Pascal  [Select][+][-]

1. type=1400 audit(0.0:270327): avc:  denied  { getopt } for  path="/dev/socket/usap_pool_secondary" scontext=u:r:untrusted_app_30:s0:c18,c257,c512,c768 tcontext=u:r:zygote:s0 tclass=unix_stream_socket permissive=0 app=org.lamw.applamwproject1

thank you

[Mongkey]

May be this jar library is more easy to use on pascal, thank you,

https://github.com/ksksue/PhysicaloidLibrary/blob/master/PhysicaloidLibrary/bin/physicaloidlibrary.jar

Code: Pascal  [Select][+][-]

1. package com.physicaloid.tutorial1;
2.  
3. import java.io.UnsupportedEncodingException;
4.  
5. import android.app.Activity;
6. import android.os.Bundle;
7. import android.util.Log;
8. import android.view.View;
9. import android.widget.Button;
10. import android.widget.EditText;
11. import android.widget.TextView;
12.  
13. import com.physicaloid.lib.Physicaloid;
14.  
15. public class Tutorial1Activity extends Activity {
16.     private static final String TAG = Tutorial1Activity.class.getSimpleName();
17.     /*
18.      * !!! You need to import PhysicaloidLibrary. !!!
19.      * If you have errors, check Project -> Properties -> Android -> Library.
20.      */
21.  
22.     /*
23.      * In this tutorial, You can learn
24.      *  - how to use open/close/read/write
25.      *  
26.      *  You might check TODO tags.
27.      */
28.  
29.     //****************************************************************
30.     // TODO : Add <uses-feature android:name="android.hardware.usb.host" /> to AndroidManifest.xml
31.     //****************************************************************
32.     Button btOpen, btClose, btRead, btWrite;
33.     EditText etWrite;
34.     TextView tvRead;
35.  
36.     Physicaloid mPhysicaloid;
37.  
38.     @Override
39.     protected void onCreate(Bundle savedInstanceState) {
40.         super.onCreate(savedInstanceState);
41.         setContentView(R.layout.activity_tutorial1);
42.  
43.         btOpen  = (Button) findViewById(R.id.btOpen);
44.         btClose = (Button) findViewById(R.id.btClose);
45.         btRead  = (Button) findViewById(R.id.btRead);
46.         btWrite = (Button) findViewById(R.id.btWrite);
47.         etWrite = (EditText) findViewById(R.id.etWrite);
48.         tvRead  = (TextView) findViewById(R.id.tvRead);
49.  
50.         setEnabledUi(false);
51.  
52.         //****************************************************************
53.         // TODO : create a new instance
54.         mPhysicaloid = new Physicaloid(this);
55.         //****************************************************************
56.     }
57.  
58.     public void onClickOpen(View v) {
59.         //****************************************************************
60.         // TODO : open a device
61.         if(mPhysicaloid.open()) { // default 9600bps
62.             setEnabledUi(true);
63.         }
64.         //****************************************************************
65.     }
66.  
67.     public void onClickClose(View v) {
68.         //****************************************************************
69.         // TODO : close the device
70.         if(mPhysicaloid.close()) {
71.             setEnabledUi(false);
72.         }
73.         //****************************************************************
74.     }
75.  
76.     public void onClickRead(View v) {
77.         byte[] buf = new byte[256];
78.         int readSize=0;
79.  
80.         //****************************************************************
81.         // TODO : read from the device to a buffer and get read size
82.         readSize = mPhysicaloid.read(buf);
83.         //****************************************************************
84.  
85.         if(readSize>0) {
86.             String str;
87.             try {
88.                 str = new String(buf, "UTF-8");
89.                 tvRead.append(str);
90.             } catch (UnsupportedEncodingException e) {
91.                 Log.e(TAG,e.toString());
92.             }
93.         }
94.     }
95.  
96.     public void onClickWrite(View v) {
97.         String str = etWrite.getText().toString();
98.         if(str.length()>0) {
99.             byte[] buf = str.getBytes();
100.             //****************************************************************
101.             // TODO : write a buffer to the device
102.             mPhysicaloid.write(buf, buf.length);
103.             //****************************************************************
104.         }
105.     }
106.  
107.     private void setEnabledUi(boolean on) {
108.         if(on) {
109.             btOpen.setEnabled(false);
110.             btClose.setEnabled(true);
111.             btRead.setEnabled(true);
112.             btWrite.setEnabled(true);
113.             etWrite.setEnabled(true);
114.             tvRead.setEnabled(true);
115.         } else {
116.             btOpen.setEnabled(true);
117.             btClose.setEnabled(false);
118.             btRead.setEnabled(false);
119.             btWrite.setEnabled(false);
120.             etWrite.setEnabled(false);
121.             tvRead.setEnabled(false);
122.         }
123.     }
124. }
125.