The DS104 – Lnet I2C interface has two 6-pin headers offering the possibility to connect different I2C modules.

The interface needs a 12V DC power source and provides a stable 5V DC for the connected modules.
For example the PCA9685 module can be connected directly to either or both of the headers. When connecting more than one module, you have to assign each module a unique address. The PCA9685 module provides 16 PWM output pins which can be used to control 16 servo’s or leds (signals). You can get the PCA9685 module in the shop.

Other modules for 8 channel occupancy detection, relay control and other sensors, are also available:


With our DS-Installer app you can flash any Arduino Nano with our DS104 sketch. Once flashed the DS-Configurator app can connect with the interface and perform all configuration steps for all modules available. Both apps can be downloaded from our downloads page.


You can find the Lnet I2C interface as a do it yourself project in the shop.
Loconet is a registered trademark of Digitrax, Inc.
