IoT Node


You'll need to install a library to make Arduino IDE support the module. This library includes drivers for the APDS-9960 and sample code for you to jumpstart your project.


For ESP32 based systems, we're currently supporting Arduino core. Please make sure you've installed the following:

  • Arduino IDE.

  • ESP32 Hardware libraries for the Arduino IDE.

  • Python for the compilation of Arduino projects.

  • Drivers for your host device, e.g., USB Virtual Serial Port driver.


Please download the library archive from

Then, copy its contents to your Arduino Libraries folder.

You can find the Arduino Libraries folder inside your Arduino sketch directory. It is generally located inside the My Documents folder.


The library comes with included samples. There is no need to download additional files for the examples.

Source Code

The hardware, its drivers and the sample code are open source. You can use them under the terms of the MIT license. Please feel free to customize and prototype them for your projects.

Arduino Library

Turta_ALSGesture_Module library is responsible for reading sensor data.

To use the library on Arduino IDE, add the following #include statement to the top of your sketch.

#include <Turta_ALSGesture_Module.h>

Then, create an instance of the Turta_ALSGesture_Module class.

Turta_ALSGesture_Module als

Now you're ready to access the library by calling the als instance.


To initialize the module, call the begin method.


This method configures the I2C bus and INT pin to read sensor data.

Basic Members

Read Ambient Light

Returns the ambient light value.

int readAmbientLight()
  • Parameters

    • None

  • Returns

    • Int: Ambient light value

Read Ambient and RGB Light

Returns the ambient and RGB light.

void readARGBLight(int a, int r, int g, int b)
  • Parameters

    • Int: a out

    • Int: r out

    • Int: g out

    • Int: b out

  • Returns

    • None

Read Proximity

Returns the raw proximity value.

short readProximity()
  • Parameters

    • None

  • Returns

    • Short: Proximity value


You can open the example from Arduino IDE > File > Examples > Examples from Custom Libraries > Turta ALS & Gesture Module. There are two examples of this sensor.


If you're experiencing difficulties while working with your device, please try the following steps.

Problem: You're reading NaN instead of sensor data. Cause: The host device does not communicate with the sensor over the I2C protocol. There is a software bug on the ESP32 Arduino hardware library which prevents I2C communication. Solution: Please update the ESP32 hardware library.

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