In this tutorial, we will learn about HC-05 Bluetooth to serial port module and how to interface it with ESP8266 NodeMCU. This Bluetooth device operates on UART communication. In other words, it uses serial communication to transmit and receive data serially over standard Bluetooth radio frequency. Therefore, we will use TX, RX pins of ESP8266 … Read more
In this user guide, we will learn to interface Nokia 5110 Graphic LCD Display with Arduino. We will discuss how to display simple texts, rotate texts, draw numbers and shapes on Nokia 5110 LCD display. Additionally, we will also display a monochrome bitmap image on the screen. We have a similar guide with ESP32 and … Read more
In this user guide, we will focus on TMP36 temperature sensor and its interfacing with Arduino UNO. This sensor provides a highly precise temperature in centigrade. Most importantly, it produces output in dc voltage that we can measure easily with the help of any bare metal microcontrollers such as Arduino Uno, STM32F4, PIC16F877A. In the starting sections, we will … Read more
In this user guide, we will learn to generate PWM or pulse width modulation using ESP8266 NodeMCU board using Arduino IDE. You will see how to generate PWM signals using the ESP8266 NodeMCU development board. All input/output pins of this development board can be used to get the PWM signal. We only need to specify … Read more
In this tutorial, we will learn how to use GPIO pins of ESP8266 NodeMCU module as output pins as well as input pins. Accordingly, we will also show how to interface an LED controlled via a push button with the ESP8266 board. We will be reading the value from the Push Button and lighting up … Read more
In this tutorial, we will learn to use interrupts and timers of ESP8266 NodeMCU using Arduino IDE. By using ESP8266 interrupt, we will be able to detect changes on GPIO pins without the need to continuously poll GPIO pins. Whenever an interrupt occurs, we can execute a certain function that should execute on state change … Read more
In this tutorial, we will learn about NEO-6M GPS module and how to interface it with Arduino to obtain GPS parameters such as latitude, longitude, altitude date, time, speed, satellites, etc. We will learn how GPS works and the overview of the NEO-6M GPS module with an introduction, pinout, and specifications. After that, we will … Read more
In this user guide, we will learn about Force Sensor also known as FSR, and learn to interface FSR sensor Arduino using the Arduino IDE. We will go through its introduction, working mechanism, pinout, and how to obtain readings from the sensor. Furthermore, we will display the sensor readings on Arduino serial monitor. After learning … Read more
In this tutorial, we will learn to interface a flex sensor with Arduino. In the starting sections, we will see bend sensor introduction, pinout, working principle, and how to use it with our Arduino board. Secondly, we will see an example to show resistance and bent angle readings obtained from the sensor on the Serial … Read more
In this user guide, we will learn to interface the DHT11 and DHT22 with ESP32 which is used for humidity, and temperature using Arduino IDE. Firstly, we will learn about DHT11/DHT22 such as its introduction, pinout diagram, and interfacing diagram with ESP32. Secondly, we will see how to install the DHT sensors library in Arduino … Read more