Tengo una aplicación desarrollada en B4A de un sistema de autoventa con impresión de albaranes que funcionaba desde hace años, pero a raíz de instalar la versión 9.8 me ha dejado de imprimir vía bluetooth en ciertos dispositivos antiguos, en otros sigue imprimiendo bien, y en otros...
I'm using the updated example from here: https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/
Discovery works with targetsdkversion="28" (Android9), but fail with targetsdkversion="29" (Android10).
As I want to use in my app the latest features from...
I use Bluetooth BLE for my APP (iBLE 2.01).
It works fine with iOS 12 (iphone 5 and iPad), but I have this error with iOS 13.3 (iPhone X)
It crash after this line :
Error occurred on line: 3874 (ChoixSession)
I´m testing the bluetooth connection.
When I run the program it reads all bluetooth arround and stop.
If I go to Android Config anf disable the bluetooth the "Serial_Conected" routine inside BluetoothAdmin is calling without stop, even if you turn the bluetooth on again it doesn´t stop calling...
Hi B4A Masters...
Can anyone here help me to wrapping MODBUS RTU?
I have to create an application which will communicate with Bluetooth HC05 @ PLC Board using stardard Modbuss RTU.
And how much I have to donate for this library?
Simply reset your throttle body in order to fix throttle problems . (This function works on most cars like Hyundai, Mercedes Benz , BMW etc...
Note: Throttle Reset works with an ELM327 based car scanner that plugs into the diagnostics socket in the car and pairs with this app over Bluetooth...
This is my Gps sports tracking App. I started this project 10 months ago without previous android programming experience. I started the project with B4a 8.3 then I moved to B4a 9.3. With the great help of this forum, I can now say that the first version is finished. Further improvements of the...
I’m trying to send data from the Arduino to mobile app and I’m getting a wired result and I’m unsure why I will try and send HelloWord from the Arduino and it comes out on the B4A Log as the following
I have added the code I’m using below I got the code from the demo...
Hello everyone, i have written an app which searches for a certain device UID, I have a B4A app running on a device which is running Android 8.0 which basically just listens when the B4J app tries to connect, I followed @Erel 's tutorial here, My question is this, everything seems to work only...
I have the question as described in the subject.
I have this code in manifest:
i have this structure:
arduino serial monitor window - pc - usb - arduino mega - bt le modul - phone - ble2 example app
ble2 example app find the bt device and connect but if me send data from pc via arduino it seems it not receive it, means it not appear in the window.
but this works...
I am happy to present my library to print with Iphone (and iPad) with Bluetooh (BLE). At the moment I can not print the images, but I'm working on it. If you want to have the activation code (Freeing all the functions) contact me in private.
(Here for B4J, Here for B4A)
This version requires...
BT_Printer library allows you to print text and image to a bluetooth thermal printers
It is similar to the BT_Printer library for Android (BLE_Printer for iOS), and implementations, events and methods are almost identical.
We are working to have the same library for all platforms. On iOS it will...
This isn't a question, just an observation that might save someone the days of stress that I've just had.
Symptom is an app that reads a BLE sensor, works great during development using B4A Bridge, solid as a rock. Then I recompile it with logging disabled (and now even comment out all...
I would like to switch a lamp on and off with a B4A app running on an android smartphone. The lamp should be connected to a socket-outlet controlled via bluetooth.
Are there any socket-outlet that are easy to interface with ? I mean a model which can be plugged in a home socket-outlet...
I have a Bluetooth connection problem.
I used "Lib Serial" to write the app and the Bluetooth module HC-06 is connected properly.
It can also transfer data to each other.
Now switch to the Bluetooth module BC7602,
currently unable to connect (can not be connected in the same way)
Buonasera a tutti,
è qualche giorno che sto girovagando per il forum ma non riesco a trovare le istruzioni con tutte le proprietà ed i metodi della libreria BLE2 Bluetooth Low Energy per poterla utilizzare al meglio.
In particolare devo trasferire dei dati tra un modulo HM-10 e android come ad...
I am very new to Bluetooth connection and also to OBDII.
I was searching the forum topics lately and found some useful threads but I couldn't find one that would give a complete example on how to get the hang of the problem.
On the first run I'd like to read the RPM data of my car's...
I have a project I am working on where I have a Bluetooth keyboard that times out (and it must, so it is not an option to try to get around that time out)
But when it times out it disconnects and causes my app to restart.
The app has absolutely no code dealing with Bluetooth connections...