Mindsensors SPLIT-Nx-v2 User Manual

Port Splitter for Digital Sensors

SPLIT-Nx-v2 splits a single NXT Sensor port into 3

ports and allows you to connect multiple I2C compliant

devices to single NXT port.

Electrical Connections

Connect SPLIT-Nx-v2 to any sensor port of NXT using standard connector

cable from NXT set (or a Flexi-cable from mindsensors.com), and connect

your digital sensors to SPLIT-Nx-v2's any of remaining ports.

The sensors attached to SPLIT-Nx-v2 must be I2C compliant devices with

unique I2C addresses. Attach your sensors to any of the available ports on

SPLIT-Nx-v2.

Refer to your sensor's User Guide on how to change the I2C address.

There is no special NXT-G block or API needed to use SPLIT-Nx-v2. In your

program, address your sensors using I2C address of your sensor. (Each

sensor must have unique I2C address).

Attach the port splitter to NXT on any port (say port 1).

In your program, use the respective sensor's Block (or API as the case may

be), and for the parameters, use the port of the port splitter (port 1 in our

case) and I2C address of the attached sensor from which you wish to take a

reading.

NOTE

If you are programming in NXT-G, the respective block for the sensor

should support addressing them with I2C address.

Under normal conditions, maximum current consumption capacity of NXT I2C

bus is about 100 milli-amps. While attaching multiple sensors, ensure that

total current drawn by your sensors is within the limits. Also to limit current

consumption, use the shortest possible length of cables between the sensor

and SPLIT-Nx-v2.

SPLIT-Nx-v2

User Guide

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Table of Contents

Do you have a question about the SPLIT-Nx-v2 and is the answer not in the manual?

Page 1 Refer to your sensor’s User Guide on how to change the I2C address. Programming Techniques There is no special NXT-G block or API needed to use SPLIT-Nx-v2. In your program, address your sensors using I2C address of your sensor. (Each sensor must have unique I2C address).
Page 2 Using SPLIT-Nx-v2 with NXT Motors Upto three motors can be attached to SPLIT-Nx-v2. Turning motor port ON through the NXT program will turn all the attached motors ON at once. This is useful if you need to run all motors at once, however independent control of each attached motor is not possible and encoder values of the motors can not be used.