B4R Tutorials

B4R PIR (Passive Infrared Sensor) Example

• By inakigarm
• Apr 11, 2016

Thanks to Erel for this great product !! (again)

Here's a PIR example (presence detection) with Arduino and B4R; the PIR sensor is the PIR HC-SR501...

 

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BLE (HM-10 module) - Broadcasting a single byte

• By Erel
• Apr 13, 2016

In this example I'm using a BLE shield to broadcast the state of a connected button.

The byte is sent as part of...

 

Attachments

• B4A_BLE_ButtonState.zip

  7.9 KB · Views: 1,612
• B4i_BLE_ButtonState.zip

  2.9 KB · Views: 1,103

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Analog Read Example using XBee Mesh Network

• By rwblinn
• Apr 15, 2016

Hi,

based on previous examples Analog Read Example, Analog Read Example using Ethernet, Analog Read Example using MQTT and Analog Read Example using LCD extended the...

 

Attachments

• B4RHowToTMP36XBee.zip

  4 KB · Views: 689

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Arduino + Raspberry Pi

• By Erel
• Apr 14, 2016

In this tutorial we will create a currency converter solution that shows the conversion from USD to other currencies on...

 

Attachments

• B4J_CurrencyConverter.zip

  1.5 KB · Views: 1,190

Last edited: Feb 12, 2018

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B4RHelp program

• By agraham
• Apr 12, 2016

I've hacked my already hacky B4AHelp program to give tidier results when looking at B4R Xml files.

EDIT: Updated to v1.1 to overcome a change in the Xml format that I just noticed.

 

Attachments

• B4RHelp1.1.zip

  75.8 KB · Views: 809

Last edited: Apr 12, 2016

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Analog Read Example using MQTT

• By rwblinn
• Apr 12, 2016

Hi,

based on previous Analog Read Example and Analog Read Example using Ethernet extended the solution by using the Arduino Ethernet Shield to publish the temperature from the Arduino...

 

Attachments

• B4RHowToTMP36MQTT.zip

  4.5 KB · Views: 907

Last edited: Apr 12, 2016

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Analog Read Example using Ethernet

• By rwblinn
• Apr 12, 2016

Hi,

based on previous Analog Read Example extended the solution by using the Arduino Ethernet Shield to send temperature data to B4J server and receive confirmation.
Full project (with...

 

Attachments

• B4RHowToTMP36Ethernet.zip

  4.6 KB · Views: 897

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Data types

• By Erel
• Apr 11, 2016

The following data types are available in B4R:

Numeric types:

Byte: 0 - 255
Int (2 bytes): -32768 - 32768. Similar to Short type in other B4X tools.
UInt (2 bytes): 0 - 65535.
Long (4 bytes)...

 

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