B4R Tutorials

Erel · Jul 6, 2017

This example shows how to send http requests with a GSM shield. I've tested it on a shield with SIM900 module. This can be very interesting for outdoor IoT solutions where there is no local...

hatzisn · Jul 29, 2020

When you buy a WeMos it doesn't come assembled with the pins soldered. You will have to solder the pins. In the following schematic and code you will find a way to check the solderings of GPIO...

Mark Read · Jul 24, 2020

Here is some code to demonstrate using a single stepper motor, an Uno, the Adafruit Motor Shield and a three-way switch. The middle position of the switch is OFF. One side rotates the motor until...

Mark Read · Jul 24, 2020

This is not really a tutorial, just a small piece of information regarding the microstepping.

With respect to the library from Erel...

Erel · Apr 12, 2016

This is a small B4J program that uses jSerial library to connect to an Arduino board.

To see it working start with this...

miker2069 · May 2, 2020

I use inline C in my B4R projects quite a bit in my projects. Mostly I have some C/C++ code I want to call from B4R subs - that's well documented on the forum (the Inline C intro here)...

WebQuest · Apr 13, 2020

Looking in the tutorial section of B4R I noticed that there was no example of how to connect and use the joystick module. So here is an example

Wiki:

Joystick Module MH / pin

 green : GND
   Red ...

Johan Schoeman · Feb 29, 2020

It is based on this tutorial. Nano programmed via B4R and visualizing the data from the MPU6050 with Processing -
See this posting for basic setup

B4R code:...

hatzisn · Mar 23, 2020

This is by 99% a tutorial and by 1% a question. The file in the link contains some notes for me I devised from a lot of tutorials on how to burn a bootloader to a ATMEGA328P-PU wired on a...

hatzisn · Mar 13, 2020

This is a very useful tutorial by the guy in dronebotworkshop which opened new horizons for me since I didn't know there were two kinds of shift registers (actually four). Enjoy:

hatzisn · Mar 5, 2020

I just found this and it looks very promissing:

LCD Custom Character Generator

online character designer for Liquid Crystal Display (LCD) and create code for arduino.

maxpromer.github.io

Erel · May 8, 2016

In this example we will connect an Android...

Johan Schoeman · Feb 15, 2020

The attached project is based on this posting:

How To Track Orientation with Arduino and ADXL345 Accelerometer

In this tutorial we will learn how to measure angle and track orientation using the Arduino and the ADXL345 Accelerometer sensor. The ADXL345 is a 3-axis...

howtomechatronics.com

Have downloaded and installed...

Erel · May 10, 2016

B4R strings are different than in other B4X tools. The reasons for these differences are:
1. Very limited memory.
2. Lack of Unicode encoders.

A String object in B4R is the same as C char*...

Erel · Apr 11, 2016

This example uses an Ethernet shield to connect to a server. In this case the server is implemented with B4J, though you can easily implement a similar server with B4A or B4i.

Whenever the user...

Johan Schoeman · Jan 19, 2020

Cracked it - can connect the DS3231 to any 2 digital pins of my Nano and read the date, time, and temperature by making use of the B4A core library only. All control of the SDA (data) and SCL...

Johan Schoeman · Jan 18, 2020

The attached project implements the I2C communication protocol to set the Date and Time of a DS3231 RTC module. The protocol is hard coded (i.e no library) and you can therefore use any 2 digital...

Johan Schoeman · Dec 26, 2019

I have one of the "MH-REAL-TIME CLOCK MODULES - 2" with a DS1302 chip. I thought it would be interesting to see if I could read the seconds, minutes, hours, year, month, day of month, and day of...

Robert Valentino · Dec 31, 2019

Here is this RGB Led Strip light project I have been playing around with.

I am including the Android program I use to play with colors.

NOTE when using the Android program you can select a theme...

B4R Tutorials

Show only:

Beginner's PCB Design Guide Using EasyEda

Http requests with GSM shield

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Check the solderings of a WeMos D1 Mini

Stepper Motor with swing and rotate

Adafruit Motor Shield - Microstepping

[tool] External Serial Connector

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Using Inline C Function Pointers to call back to B4R subs

Example of use of the joystick module

Visualizing MPU6050 Accelerometer and Gyroscope - Pitch, Roll and Yaw with inline C and Processing

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Burn bootloader to ATMega328P-PU with an Arduino Uno

Shift Registers (Serial In Parallel Out - Parallel In Serial Out)

Custom character creation for LCD

LCD Custom Character Generator

HC 05 Classic Bluetooth

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Visualizing ADXL345 3-axis Accelerometer Pitch and Roll with inline C and Processing

How To Track Orientation with Arduino and ADXL345 Accelerometer

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Strings and Bytes

Ethernet / Network Tutorial

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Reading Date, Time, and Temperature from a DS3231 RTC module (I2C) using any 2 digital configured pins from an Arduino

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Setting Date and Time of a DS3231 RTC module (I2C) using any 2 digital configured pins from and Arduino

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Setting and Reading date and time of a DS1302 (RTC) without a library

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LEDStrip - different themes for different holidays

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B4R Tutorials

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