Other B4R v2.51 is available for download


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B4R v2.51 is available for download: https://www.b4x.com/b4r.html

This update includes all the IDE improvements that were added to the other B4X products including the ability to easily share modules between projects.
  • IDE improvements.
  • ByteConverter.ObjectSet - Allows setting a global object. Especially useful with arrays of objects.
  • Bug fixes.


V2.51 is now available for download. It fixes an issue related to subs that return strings or arrays of bytes.
Last edited:


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My programs works fine in v2.20 but reset continously in v2.50
Downgrading to v2.20 and problem is gone.
I use 'Generic ESP8266 Module' but program will also run on a Wemos D1 R2 Mini

This is the size of the compiled program:
Uploading 395568 bytes from C:\2Work\1C\B4R\BOARDW~1\SOCKET~1\Objects\bin/src.ino.bin to flash at 0x00000000

This is the error after upload:

ets Jan 8 2013,rst cause:4, boot mode:(1,7)
wdt reset

This error is repeated after power up:

ets Jan 8 2013,rst cause:1, boot mode:(3,7)
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
Exception (3):
epc1=0x401003e9 epc2=0x00000000 epc3=0x00000000 excvaddr=0x4000c729 depc=0x00000000
ctx: cont
sp: 3fff25f0 end: 3fff2860 offset: 01a0
3fff2790: 3ffe8c3c feefef65 3fff3700 feefef65
3fff27a0: 3ffe8c18 3fff2765 3fff36b8 00000000
3fff27b0: 4020c3a0 00000000 3ffef730 401004d8
3fff27c0: 3ffe9aa4 3fff3d01 3ffe8bec 40211fac
3fff27d0: 3fff3638 00000065 3ffe8bd8 40208cf8
3fff27e0: 3fff3604 00000849 3ffef730 40208d65
3fff27f0: 00000000 00000065 3fff1770 40211884
3fff2800: 00000008 3fff1138 3fff27a8 3fff1830
3fff2810: 000007d0 4020c3a0 00000000 40207701
3fff2820: 3fffdad0 00000008 3ffef704 4020a091
3fff2830: feefeffe 00000000 3fff1828 4020ee1c
3fff2840: feefeffe feefeffe feefeffe 402120e0
3fff2850: feefeffe feefeffe 3fff1840 40100710
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