A temperature controller is a device used to regulate the temperature of an object, space inside a container or room, etc. It works by measuring the ambient temperature using a thermal sensor and controlling...
NTC (Negative Temperature Coefficient) thermistor has a characteristic of non-linear inverse varying resistance with respect to the temperature change. That is the resistance value decreases if the temperature of the thermistor is increased and...
A passive infrared sensor is a device which detects the infrared rays emitting from humans, animals, or similar thermal ray source. An HC-SR501 sensor is a motion detector sensor that detects the motion of...
In any type of servo position control methods like using a potentiometer, press switch, etc, the Arduino is actually writing each position values in degrees corresponding to the input change. In all that methods...
A timer switch is an electrical switch that is operated by means of a timer circuit or timer mechanism that measures specific time intervals. It can be used to switch ON or OFF a...
This is a basic code for countdown display in the format HH:MM: SS; Hour:Minute:Second. The code uses millis() function of the Arduino to calculate the time, the millis() returns the time in milliseconds passed...
Here is a simple method using Arduino and 4×4 keypad to navigate the LCD cursor position. This is useful for projects that require menu control, multiple inputs using a keypad, etc. Refer LCD and...
A Matrix Keypad is a very useful module for embedded systems and a variety of projects. This tutorial briefly explains the interface of 4×3 and 4×4 keypads with Arduino and few programs using keypad...
A counter is a device that counts the number of times when a particular event occurs. Here we count the number of times the push switch has been pressed. The Arduino detects a transition...
The main three components in this project are GPS (Global Positioning System) module, GSM Module, and an Arduino Uno. Here we are sending the live coordinates received by the GPS receiver module to a...
