Learn — Arduino

LCD is widely used in applications to show characters and messages other than using the serial monitor. Our LCD shield kit makes it easy for you you to connect a LCD with an Arduino without using up any of the digital I/O pin except for the 2 I2C pins. As a result, you can connect more electronics into one shield, making it much easier to work with on the Arduino boards.  Part List LCD Shield Kit Female to Male Header Pins Arduino Uno R3  Arduino IDE Equipment List Soldering Iron Wire cutter Solder lead-free The LCD Shield Kit comes with the following parts.  Assembly...

The Soil Moisture Sensor Module (Resistance) consists of two probes which are used to measure the volumetric content of water. The two probes allow the current to pass through and then it gets the resistance value to measure the moisture value. However, the major issue with resistive soil moisture sensor is the corrosion of the sensor probes. it is because it is in contact with the soil while there is also a DC current flowing which causes electrolysis of the sensors.  In this article, we will talk about how to wire and set up the module for operation with an...

The flame sensor module consists of an IR receiver, resistor, capacitor, potentiometer, and a comparator LM393 in an integrated circuit. It can detect infrared light with a wavelength ranging from 700nm to 1000nm. The flame probe converts the light detected into the form of infrared light into current changes.    The flame sensor module operates between 3.3V to 5V DC with a digital output that indicate the presence of a high infrared signal. When it is triggered, it will output a HIGH.    How it works The flame sensor is very sensitive to IR wavelength. The analog output (A0) outputs a...

The MQ-2 Smoke Sensor is a very popular module for detecting smoke and to flammable gases like LPG, Butane, Propane, Methane, Alcohol, and hydrogen. It outputs different voltage accordingly to the smoke/gas level that exists in the atmosphere. The sensor outputs a voltage that is proportional to the concentration of smoke/gas. In other words, the greater the gas concentration, the greater the output voltage. The lower the gas concentration, the lower the output voltage.  The smoke sensor has a built-in potentiometer that allows you to adjust the sensor sensitivity according to how accurate you want to detect gas. It has...

The MQ-3 sensor is one of the most commonly used sensors in the MQ sensor series. It is a chemiresisotors because sensing is based on the change of resistance of the sensing material when it is exposed to alcohol.  In this article, we will talk about how to wire and set up the module for operation with an Arduino Board.   Wiring  MQ-03 alcohol sensor operates at 5V DC and draws around 800mW. It can detect alcohol concentrations anywhere from 25ppm to 500 ppm. It comes with both the digital and analog output pins. The analog output voltage provided by...