B4J Tutorials

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Well, this is not new. The ABMGenerator has been an inspiration to this, so I have just adjusted a few things for my liking. As you might know, MyMaterial.Show is a code generator for...

 

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MashPlugIns
Pen & Paper


In this part of the ABMaterial WebApp, we will demonstrate how to create a ListView that will load all the contacts from our...

 

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Requirements
MashPlugIns
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Inspired by this article.

My previous tutorial dealt with how one can Create a simple 'Contacts' WebPart - Part 1
...

 

Hi y'all

For this tutorial you will need
MashPlugIns
Pen & Paper

Related Articles

Creating a simple 'Contacts' ABMaterial WebApp - Part 2
Creating a simple 'Contacts'...

 

Here we go

Anyway, having noted that the Twitter Bootstrap learning curve is going smoothly, OneEvery seems to be maturing surely but slowly for this part, a CLI (Command Line Interface)...

 

Hi Guys...

So, This hopefully will become a tutorial about how to set up and run your B4J based RDC server on your vps...
This tutorial is aimed at those that, like me, take their very first...

 

The "sentiment" feature in the example project, uses NLP document categorizer feature to find whether the text is negative or positive.
The dataset for the model contains movie...

 

Please start with this tutorial: https://www.b4x.com/android/forum/threads/nlp-sentiment-analysis.133922/
It is quite similar.

In this tutorial we will try to detect whether...

 

Ola

My first steps towards IoT.

1. Download Eclipse Mosquitto
2. There are a lot of examples in the forum about coding this, however I needed a GUI tool to first experiment with this. A...

 

Hello,
Seminar on the MakeB4XLib application version 1.7,
which is a tool for creating libraries of the "B4X Library (.b4xlib)" type.

In this seminar I will...

 

Hi,

wanted to learn more about jRDC2. Let me share testing jRDC2 accessing a MySQL database, running on a Raspberry Pi (RPi), via a B4J UI application.

Raspberry Pi MySQL Setup

• ...

 

For Mac
as already suggested by the good @KMatle

I needed to remove the Packager property (The B4J-packager does it on it's own with the new version)

Note 1*

'#PackagerProperty...

 

Just a short note how my experience was migrating to JPOI5. Not worth a tutorial - more a "all easy note" when you migrate an important app (like mine which is used by a company).

I needed to...

 

Using the new jBluetooth library it is possible to communicate with Raspberry Pi devices over Bluetooth.

Bluetooth can be very useful in places where there is no local network.

The...

 

What is a ESP8266?

It's a small Basic programmabe microcontroller with Wifi, TCP/IP stack plus server, GPIO's and... it's unbelievable cheap. For about 3€ you get it as a bulk version which you...

 

For this tutorial you will need the Pi4J library. Get it here (under Erel's video): https://www.b4x.com/android/forum/threads/iot-jpi4j-raspberry-pi-gpio-controller.37493/#content

I did...

 

This example demonstrates how the B4X tools can be used to create a solution with multiple types of components and communication channels.

See the following video (make sure to watch it in HD...

 

I ran some tests to check how these boards perform as web servers.

The tests were similar to the tests done here and here.

Data was read and written to a SQLite database in wal mode...

 

This is a simple example of a traffic light implementation using Raspberry Pi 2.

The red, yellow and green leds are connected to pins 27, 28 and 29 (see the numbering scheme...

 

Using a Raspberry to handle a lot of data will definetly corrupt/destroy the SD card after a while (e.g. if you use it as a webserver). SD cards are slow (in comparison to a hd or sdd). The best...