LFS-16A Guide

The LFS-16A is our new 16 channel analog sensor with an integrated multiplexer. 
It combines 16 individually addressable sensors in a compact and lightweight line following sensor array. The integrated 16 channel multiplexer allows you to access the sensor values through just 5 pins.

Please note that this product is suited towards advanced users. 

Here'a a detailed guide to understanding the sensor and how to go about using it. 

Wiring Guide- 

In this guide we will be interfacing the LFS-16A with an Arduino Nano.

The pinout for the sensor is the following-

GND, +5V	Used to power the sensor. This sensor has a current draw of ~300mA. Hence its recommended to use a separate 5V line to power this sensor. Avoid using the 5V ouput from a microcontroller.
SIG	This pin carries the analog value of the selected sensor. Needs to be connected to an analog pin on the Nano
S0, S1, S2, S3	Select lines used to choose the sensor being read at the moment. These pins need to be connected to digital pins on the Nano.
EN	Enables the multiplexer. Needs to be set LOW for the muliplexer to be ON

 

To test the sensor, you can use the following pin connections with the Arduino Nano

Sensor	Nano
GND	GND
+5V	+5V
SIG	A4
S0	A0 (Digital Pin 14)
S1	A1 (Digital Pin 15)
S2	A2 (Digital Pin 16)
S3	A3 (Digital Pin 17)
EN	GND

 

Here's a sample chassis design in case you are using the original LF-2 robot and are looking to upgrade the sensor- 16 Sensor chassis design file