RFID is an acronym for Radio Frequency Identification and refers to a technology whereby digital data encoded in RFID tags or RFID cards (the one you use it in your Office or College ID Cards with RFID) that are captured by a reader via radio waves. RFID is similar to barcoding in that data from a tag or cards are...
An RGB LED is an integrated LED with all three primary colors in it, RED, GREEN and BLUE. Using an RGB LED we can make all other colors by mixing a proper amount of these three colors. The amount of voltage applied to each pin specifies the amount of colors it emits. This is called additive mixing.There are two...
NRF24L01 is a Low power 2.4 GHz wireless RF Module from Nordic Semiconductors. It can operate with baud rates from 250 kbps up to 2 Mbps. If it is operated in an open space with a lower baud rate, it can reach up to 300 feet. So it is used in short range applications like Home Automation, Toys, Gaming...
MQ Gas Sensor use a small heater inside with an electro-chemical sensor. They are sensitive to Gases.Whenever the concentration of gas increases the resistance will decrease (but the current flow will get increased). It leads to change in voltage and it is read at Analog out pin which tells how much gas is concentrated in normal Air. This varied analog...
NodeMCU is a popular Wi-Fi based Development board in IoT Projects. Its predecessors are ESP-01, ESP8266-12E. The NodeMCU is based on ESP866 Series.As the name suggests it is a development board, it contains additional circuitry for Power supply USB, Communications, etc (Similar to an Arduino Uno is built around ATMEGA328 IC). Hence this board has built-in voltage regulators to...
Servo motors are widely used in Robots like robot arms and legs. Basically, a servo motor can operate upto 180-degree angle only. It will not rotate full revolution like a DC Motor.A Servo motor can be controlled by degrees like 90 degrees, 180 degrees and 45 degrees. It uses PWM Signals to control the angle of the servo. Hence...
PIR Sensor is a passive infrared sensor which senses IR (Infrared) emitted by humans (all objects emit a certain amount of IR). A hotter object emits more IR than a colder one.The PIR Sensor is also called as Pyroelectric IR Sensor, Passive Infrared Sensor or IR Motion Sensor. The applications of PIR are Burglar Alarm, Motion detected Floor Lamps,...
We are excited to announce that our FactoryForward Blog is featured on feedspot on Top 20 Arduino and Raspberry Pi Blogs. It’s a great pleasure for us to improve our blogging experience to our users. We thank them for motivating our hard work and it will help us to deliver more contents in the future.Feedspot selects blogs on the...
In this tutorial, we will see how to use TCS3200/TCS230 color sensor with Arduino. This color sensor is used in wide range of applications like conveyors, food processing units, paint mixing applications, Vending machines and many more. So let’s see how it works and how to use it with Arduino.At the center of the sensor, you can able to...
In our previous tutorial, we have created a Home Automation using NodeMCU and Blynk. Using Blynk, we can control the devices anywhere in the World. We connected our NodeMCU with an optocoupler based relay and programmed it with Blynk code. Actually, it's very simple and no programming knowledge is required.Now in this tutorial, we will add an additional feature...
