Joy-it SEN-KY033LT User guide

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

LINE TRACKER

SEN-KY033LT

1. GENERAL INFORMATION

Dear costumer,

thank you very much for choosing our product.
In following, we will introduce you to what to observe while starting up
and using this product.

Should you encounter any unexpected problems during use, please do
not hesitate to contact us

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

2. PIN ASSIGNMENT

1. Connection

3. USAGE WITH A RASPBERRY PI

KY033 Raspberry Pi

GND Ground

(Pin 6)

V+ 3,3 V

(Pin 1)

Signal GPIO24

(Pin 18)

www.joy-it.net

Pascalstr. 8 47506 Neukirchen-Vluyn

2. Code example

This sample code shows in the console whether the sensor is above a line
or not. This is done by infrared, because if the sensor is on the line, the

transmitted infrared signal does not reach the receiver.

# Required modules are imported and set up

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

# The input pin to which the sensor is connected, is declared here.

GPIO_PIN = 24
GPIO.setup(GPIO_PIN, GPIO.IN, pull_up_down = GPIO.PUD_UP)

# Pause between the output of the result is defined (in seconds)

delayTime = 0.5

print ("Sensor-Test [druecken Sie STRG+C, um den Test zu beenden]")

# Main loop of the program

try:

while True:
if GPIO.input(GPIO_PIN) == True:
print ("LineTracker is above the line")
else:
print ("LineTracker is out of a line")
print ("---------------------------------------")

# Reset + Delay

time.sleep(delayTime)

# Clean up after the program has finished

except KeyboardInterrupt:

GPIO.cleanup()

You can also download this sample code here.

Furthermore, the sensor has a potentiometer with which the
sensitivity can be adjusted. A LED also lights up when the sensor receives
an infrared signal, i.e. leaves the line.

But first you have to install this package:

sudo apt install python3-rpi.gpio

Now, you can either use the following commands to download and unzip
the file :

wget http://sensorkit.joy-it.net/images/c/cf/KY-033_RPi_Trackingsensor.zip
unzip KY-033_RPi_Trackingsensor.zip