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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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How to code "buf(0)=value >> 8" in B4R?
petr4ppc
Mar 2, 2022
Answers
2
Views
1K
Mar 2, 2022
petr4ppc
Send 8 bytes via CAN bus
petr4ppc
Mar 1, 2022
Answers
2
Views
2K
Mar 2, 2022
petr4ppc
Callback from Inline C to B4R Sub with parms
KMatle
Mar 1, 2022
Answers
1
Views
2K
Mar 2, 2022
Erel
TFT Screen font
ehsan gilassi
Feb 27, 2022
Answers
2
Views
2K
Mar 1, 2022
ehsan gilassi
Arduino Nano or MKR 1010 Bluetooth or WiFi Communication to B4A App or B4J App
Guardian17
Feb 18, 2022
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15
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7K
Feb 24, 2022
KiloBravo
K
Slow clocking ESP8266
peacemaker
Feb 22, 2022
Answers
4
Views
2K
Feb 22, 2022
agraham
mqtt Client Id encoding
fbritop
Feb 21, 2022
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3
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2K
Feb 22, 2022
Erel
rMQTT HostName with query parameters
bdunkleysmith
Feb 19, 2022
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3
Views
2K
Feb 20, 2022
Erel
N
Bluetooth (BLE) data transfer
NathanT
Feb 18, 2022
Answers
1
Views
3K
Feb 19, 2022
janderkan
Bit.Or vs. B4J/-A Bit.Or
KMatle
Feb 15, 2022
Answers
6
Views
3K
Feb 16, 2022
emexes
E
Does the arduino board have a serial number?
vali khandangoll
Feb 9, 2022
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3
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3K
Feb 12, 2022
Erel
T
Due and bytes
Tonys
Feb 4, 2022
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5
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3K
Feb 8, 2022
Erel
How to convert string to b4rstring?
santook
Feb 6, 2022
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2
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3K
Feb 7, 2022
Erel
ESP32/8266 Software serial
ehsan gilassi
Jan 24, 2022
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4
Views
4K
Jan 27, 2022
ehsan gilassi
Index error: could not find referenced tool name=avrdude
Hans- Joachim Krahe
Jan 27, 2022
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0
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1K
Jan 27, 2022
Hans- Joachim Krahe
Initialize rSD with other pins (MISO,MOSI,SCK,CS)
sasetcolombia
Jan 20, 2022
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1
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5K
Jan 26, 2022
candide
C
rRCSwitch.h:3:10: fatal error: RCSwitch.h: No such file or directory - SOLVED
petr4ppc
Jan 25, 2022
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2
Views
4K
Jan 25, 2022
petr4ppc
ESP32 first try: works with Arduino, but not in B4R
peacemaker
Feb 24, 2021
2
Answers
21
Views
11K
Jan 23, 2022
f0raster0
Use SPI.H Library in B4R
Gerardo Tenreiro
Oct 22, 2021
2
Answers
20
Views
6K
Jan 21, 2022
KiloBravo
K
M
esp32 truncate gsm send message
mariottino82
Jan 18, 2022
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7
Views
3K
Jan 20, 2022
Erel
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