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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
B4A
(free) - Android development
B4J
(free) - Desktop and Server development
B4i
- iOS development
B4R
(free) - Arduino, ESP8266 and ESP32 development
All developers, with any skill level, are welcome to
join the B4X community
.
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T
thetrueman
reacted to
rwblinn's post
in the thread
B4R Library
rNimBLEScanner
with
Like
.
B4R Library rNimBLEScanner Brief rNimBLEScanner is an open-source library providing BLE scanner functionality on ESP32 for B4R...
Mar 28, 2026
A
alwaysalearner
replied to the thread
B4J Question
How to send whatsapp message with attachment via B4J code?
.
On the free Developer plan, you can interact with 3 chats total (contacts or groups), and receive notifications from only 3 chats. I...
Mar 28, 2026
Dave O
posted the thread
Android Question
Dashed stroke on outline drawn with B4XPath?
in
Android Questions
.
I'd like to draw a rounded rect using B4XCanvas and B4XPath and such, but I'd prefer the stroke (with no fill) to be a dashed line. I...
Mar 27, 2026
kafimoha
replied to the thread
iOS Question
BLE Receiving and Displaying data simultinuasously
.
@noega33 I just wanted t know in which format you sent the MPU data in Arduino and how you extract them in b4A. I established the...
Mar 27, 2026
Johan Hormaza
reacted to
Johan Schoeman's post
in the thread
B4A Library
TapCard - scan your NFC enabled Bank Card with your NFC enable device (EMV)
with
Like
.
A wrap for this Github project. Scan your NFC enabled Bank Card with your NFC enable device. Enable NFC on your Nfc enable device...
Mar 27, 2026
Johan Hormaza
reacted to
rwblinn's post
in the thread
B4R Library
rNimBLEScanner
with
Like
.
B4R Library rNimBLEScanner Brief rNimBLEScanner is an open-source library providing BLE scanner functionality on ESP32 for B4R...
Mar 27, 2026
josejad
reacted to
rwblinn's post
in the thread
B4R Library
rNimBLEAdvertiser
with
Like
.
B4R Library rNimBLEAdvertiser Brief rNimBLEAdvertiser is an open-source library providing BLE advertising functionality on ESP32 for...
Mar 27, 2026
josejad
reacted to
rwblinn's post
in the thread
B4R Library
rNimBLEScanner
with
Like
.
B4R Library rNimBLEScanner Brief rNimBLEScanner is an open-source library providing BLE scanner functionality on ESP32 for B4R...
Mar 27, 2026
peacemaker
reacted to
rwblinn's post
in the thread
B4R Library
rNimBLEScanner
with
Like
.
B4R Library rNimBLEScanner Brief rNimBLEScanner is an open-source library providing BLE scanner functionality on ESP32 for B4R...
Mar 27, 2026
peacemaker
reacted to
rwblinn's post
in the thread
B4R Library
rNimBLEAdvertiser
with
Like
.
B4R Library rNimBLEAdvertiser Brief rNimBLEAdvertiser is an open-source library providing BLE advertising functionality on ESP32 for...
Mar 27, 2026
rwblinn
posted the thread
B4R Library
rNimBLEScanner
in
B4R Libraries
.
B4R Library rNimBLEScanner Brief rNimBLEScanner is an open-source library providing BLE scanner functionality on ESP32 for B4R...
Mar 27, 2026
rwblinn
posted the thread
B4R Library
rNimBLEAdvertiser
in
B4R Libraries
.
B4R Library rNimBLEAdvertiser Brief rNimBLEAdvertiser is an open-source library providing BLE advertising functionality on ESP32 for...
Mar 27, 2026
peacemaker
replied to the thread
B4J Question
How to invoke the event for Sender ?
.
Wow! Indeed, "fire" is the root. Thanks for help !
Mar 27, 2026
peacemaker
reacted to
teddybear's post
in the thread
B4J Question
How to invoke the event for Sender ?
with
Love
.
I got you. it should work for you. Sub ClickButton(i As Int) For Each b As Button In created_buttons If i-1 = b.Tag Then...
Mar 27, 2026
teddybear
replied to the thread
B4J Question
How to invoke the event for Sender ?
.
I got you. it should work for you. Sub ClickButton(i As Int) For Each b As Button In created_buttons If i-1 = b.Tag Then...
Mar 27, 2026
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