The BT & DDS Function Generator mod.T4E-ASB-01 board  is a shield for Arduino/Genuino UNO board that allows you to build a compact function generator. It is controllable by a mobile Android device (smartphone or tablet) through its Bluetooth interface.

Using a Power Bank may be portable.

Available versions are:

- already assembled   mod.T4E-ASB-01

- mounting kit              mod.T4E-ASB-01-K

It can generate sinusoidal, square, and pulse waveforms with adjustable frequency, from few Hertz to more MHz, using its Android App (myGEN) downloadable by reading the QRcode.

To use the shield you do not need to know the electronics: it was designed to be used in "immediate" mode. It's enough:

1. Insert the shield on an Arduino board

2. Power up the Arduino board by connecting it to a computer or a power supply

3. Install the Arduino Software IDE

4.Open and upload the code (sketch)

5.Install and use the included App to set the generator frequency

Generated signals can be provided to:

- experimental circuits. For example, by providing the sinusoidal signal to an audio amplifier, you can analyze its frequency response, measure its output power at a given frequency, or perform other experiments.

- an oscilloscope, to show students how to use this instrument to perform measurements (amplitude, frequency, period, ...). Also, if the instrument allows FFT analysis, it will be possible to show the characteristics of a periodic signal in the frequency domain (see image 2).

The EDU SHIELD mod.T4E-ASB-02 board is an Arduino/Genuino UNO Educational Shield that allows you to build a compact and immediate system for Arduino's learning by doing.

Using a Power Bank may be portable: its display shows the measurements or information you expect.

It is possible to run 12 different experiments: for each experiment, the Arduino code and the App (if required) are provided for communication between the board and an Android device.

The board contains more ready-to-use devices, without having to perform complex and confusing cabling: you only need to upload the code (sketch) of the experiment that will enable the transducer or read the status of a sensor or show on-display the expected information, etc.

The presence of the Bluetooth interface allows sending or receiving information to or from an Android mobile device (smartphone or tablet).

Using this board you will be able to concentrate on the code to create complex systems without wiring, eliminating:

- the risk of fault due to incorrect or unstable connection, or

- damage to an Arduino port or an electronic component, due to incorrect circuit design.

Includes and manages LCD displays, LEDs, switches, relays, buzzer, potentiometers, keyboard with more buttons, temperature probe and Bluetooth interface.

There are N.2 analog interfaces (compatible with analog BTA sensors of Vernier) that can be used to acquire analog quantities supplied by experimental boards or external breadboard.

To use the shield you do not need to know the electronics: it was designed to be used in an "immediate" way.

The board is ready with its components and devices without the need for any wiring.

myEDU apps, which can be downloaded using the QRcode on the page, make it easy to use the board with an Android device.

Students, following the instructions in the manual, can build their own Android apps that will communicate with the board, using:

- Simple free apps downloadable by Google Play or

- other development environments, such as MIT App Inventor 2 (AI2), which uses object oriented programming with drag-and-drop technique.

The following versions are available:

• already mounted   mod.T4E-ASB-02
• mounting kit           mod.T4E-ASB-02-K

EDU SHIELD installed  on Arduino UNO board (not included)

Detail of a function