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 about ADC of ESP8266 NodeMCU using Arduino IDE. Firstly, we will see how to read analog values with ESP8266 ADC. We will achieve this by interfacing a potentiometer with an analog input pin of ESP8266 ADC and read analog voltage across the potentiometer. NodeMCU ADC will convert this analog … Read more
In this tutorial, we will see how to send data from one ESP32/ESP8266 to multiple ESP32 and ESP8266 boards using ESP-NOW and Arduino IDE. In other words, we will transmit data from one ESP32 to many ESP32 and ESP8266 boards (One to Many Communication). Previously, we sent data from one ESP32 to another ESP32 via … Read more
In this tutorial, we will learn to monitor heart rate using a pulse sensor (SEN-11574) and ESP8266 NodeMCU. Firstly, We will discuss the introduction, pinout, working, and connection diagram of the pulse sensor (SEN-11574) with ESP8266 NodeMCU. After that, we will three examples such as controlling LED with pulse rate, plotting data on serial monitor, … Read more
In this tutorial, we will learn to create a BME280 web server using ESP8266 NodeMCU and Arduino IDE. BME280 is used to measure temperature in Celsius, the temperature in Fahrenheit, humidity, and Pressure. This web server will act as a weather station as it will show temperature, humidity, and pressure readings on the web page. … Read more
In this comprehensive tutorial, we will learn how to flash MicroPython firmware to ESP32 and ESP8266 NodeMCU boards using esptool.py. The esptool.py tools can be used on Windows, Linux, and MacOS. It is a python based command line utility used to flash and erase Micropython firmware for various development boards such as ESP32 and ESP8266. … Read more
In this tutorial, we will learn to create a BME680 web server using ESP8266 NodeMCU and Arduino IDE. The BME680 is used to measure ambient temperature, barometric pressure, relative humidity, and gas (VOC) or Indoor air quality (IAQ). We will learn how to display sensor values on a web page using ESP8266 NodeMCU. The sensor … Read more
In this tutorial, we will learn about ESP8266 deep sleep mode and wake up sources using Arduino IDE. In this comprehensive guide, we will look at how to put the ESP8266 development board into deep sleep mode. Furthermore, we will also discuss different wake up sources through which ESP8266 can go from sleep to normal … Read more
In this user guide, we will learn how to use a DS18B20 temperature sensor with an ESP8266 NodeMCU using Arduino IDE. This is a comprehensive article in which we will discuss the sensor and how to access sensor readings through both single and multiple sensors. Additionally, we will also display the temperature readings on an … Read more