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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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B4R - Arduino, ESP8266 and ESP32
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B4R Questions
Libraries developers questions
Threads
52
Messages
294
Messages
294
C
C/C++ Question
ArrayObject* B4RLIB::Function() : how to make this return working ?
Apr 24, 2025
candide
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Configure esp8266 through the B4A application
Cesar_Morisco
Aug 1, 2023
2
Answers
29
Views
6K
Aug 9, 2023
Cesar_Morisco
B4R IDE "Connect" button
peacemaker
Aug 8, 2023
Answers
1
Views
2K
Aug 9, 2023
Erel
B4R v3.90 does not work properly with Arduino IDE v2.1.1
pixet
Aug 8, 2023
Answers
3
Views
2K
Aug 8, 2023
mcqueccu
ESP32 error: E (259) psram: PSRAM ID read error: 0xffffffff
peacemaker
Aug 8, 2023
Answers
0
Views
3K
Aug 8, 2023
peacemaker
S
Which board has WiFi or bluetooth
Scantech
Aug 8, 2023
Answers
1
Views
1K
Aug 8, 2023
teddybear
[SOLVED] Can't connect B4R MQTT client to B4J MQTT broker
Yafuhenk
Aug 4, 2023
Answers
6
Views
3K
Aug 6, 2023
Yafuhenk
[inline-c] how to receive several strings\arrays from C-code ?
peacemaker
Jul 31, 2023
Answers
2
Views
2K
Aug 1, 2023
Erel
list of objects of custom type
peacemaker
Jul 31, 2023
Answers
1
Views
1K
Aug 1, 2023
Erel
[inline-c] exclude non-needed references
peacemaker
Jul 30, 2023
Answers
2
Views
2K
Jul 31, 2023
peacemaker
I can't put the password ap
Cesar_Morisco
Jul 28, 2023
Answers
2
Views
2K
Jul 30, 2023
Cesar_Morisco
[inline-c] how to pass 2 strings into ?
peacemaker
Jul 28, 2023
Answers
1
Views
1K
Jul 28, 2023
peacemaker
maybe a small tutorial for INLINE-C <-> B4R data passing ?
peacemaker
Jul 28, 2023
Answers
0
Views
1K
Jul 28, 2023
peacemaker
ESP32 based Game of Life
josejad
Jul 28, 2023
Answers
0
Views
1K
Jul 28, 2023
josejad
ESP32 RTC data storage: store max measurements
peacemaker
Jul 27, 2023
Answers
2
Views
3K
Jul 28, 2023
peacemaker
R
Code Copying via OTA
RJB
Jul 27, 2023
Answers
3
Views
2K
Jul 27, 2023
peacemaker
[inline C] possible to return value from C-function ?
peacemaker
Jul 26, 2023
Answers
3
Views
2K
Jul 26, 2023
RJB
R
Check if a string is valid Json
peacemaker
Jul 26, 2023
Answers
4
Views
2K
Jul 26, 2023
TILogistic
Solved
Mqtt Broker on ESP8266 (IDE B4R not working) (Arduino IDE ok)
XorAndOr
Jul 13, 2023
Answers
7
Views
3K
Jul 25, 2023
XorAndOr
ESP32 OTA update - what .bin file ?
peacemaker
Jul 25, 2023
Answers
3
Views
3K
Jul 25, 2023
peacemaker
ESP32 .bin flashing
peacemaker
Jul 24, 2023
Answers
1
Views
2K
Jul 24, 2023
peacemaker
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