Overview
In this tutorial you will learn about Node Red and how to control Raspberry Pi board using its GUI.
What You Will Learn
Introduction to Node RED and how to install it
How to control LED in a graphic environment with Node RED
Monitor the status of a button using Node RED
What is Node RED?
Node-Red is a programming tool for connecting hardware, APIs and onl...
Focusable Red Line Laser Features
This module emits a small intense focused beam of visible red light. This module can be used in fiber optic communications, laser test tools, surgical equipments, GPS tracking, etc. At the top of the laser there is a screw that is used to adjust the laser light. Some key features are:Operating voltage: 3VRequired current for module to be turned on: Less than 40mAOutput power: 5mWLaser wavelength: 650nm
Note
Since the required current is less than 40mA and the ...
GP2Y0A02YK0F Infrared Sensor Features
Sharp GP2Y0A02YK0F is an IR sensorusing infrared wave to measure distance. The output of the sensor is analog voltage, which can be read easily by ADC channel of the microcontroller. This sensor can be used in industry and especially in robotics. Sharp GP2Y0A02YK0F has an efficient range of 20 to 150cm.
Note
The sensor's output data would be incorrect at distances less than 20 cm and more than 150 cm.
You can download the datasheet of this module here.
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GP2Y0A41SK0F Infrared Sensor Features
Sharp GP2Y0A41SK0F is an IR sensor that uses infrared wave to measure distance. The sensor’s output is analog, which can be easily read by microcontroller’s ADC converter. This sensor can be used in industry and especially in robotics. This sensor has an efficient range of 4cm to 30 cm.
Note
The sensor's accuracy will decrease at distances over 40cm.
You can download the datasheet of this sensor here.[wpdm_package id='...
GP2Y0A51SK0F Infrared Sensor Features
Sharp GP2Y0A51SK0F is an IR sensor that uses infrared wave to measure distance. The output of the sensor is analog voltage, which can be easily read by the microcontroller’s ADC converter. This sensor can be used in industry and especially in robotics. The efficient range of this module is 2 to 15 cm.
Note
At distances over 15cm, the sensor’s output is not accurate (usually shows higher than real value).
You can download the datasheet of this module here...
TCRT5000 Sensor Features
The TCRT5000 Sensor is used to detect color and distance. The sensor emits an infrared wave and then receives it. TCRT5000 Infrared Reflective Sensor Module is often used in line following robots and object sorting Robots since this module can sense if a surface is white or black.
The measuring distances range from 1mm to 8mm and the central point is about 2.5mm. There is also an onboard potentiometer to adjust the sensitivity.
TCRT5000 Sensor Pinout
This sensor has ...
