Introduction to I2C I2C (Inter-Integrated Circuit) is a serial bus interface connection protocol. It is also called as TWI (two-wire...

Introduction The Serial Peripheral Interface (SPI) is a bus interface connection protocol originally started by Motorola Corp. SPI...

Description While Wi-Fi connection the router assigns the random IP address to the NodeMCU Board. This is because DHCP (Dynamic Host...

Introduction An interrupt is an event that occurs randomly in the flow of continuity. It is just like a call you have when you are busy...

Introduction to PWM Pulse Width Modulation (PWM) is a technique by which the width of a pulse is varied while keeping the frequency of...

Introduction NodeMCU Development Kit/Board consists of an ESP8266 wifi chip. ESP8266 chip has GPIO pins, serial communication protocol,...

Introduction Analog to Digital Converter (ADC) is used to convert the analog signal into digital form. ESP8266 has an inbuilt 10-bit ADC...

Introduction to GPIO General-purpose input/output (GPIO) is a pin on an IC (Integrated Circuit). It can be either an input pin or output...

Introduction The ESP8266 is a low-cost Wi-Fi chip developed by Espressif Systems with TCP/IP protocol. For more information about...

Introduction NodeMCU is an open-source LUA based firmware developed for the ESP8266 wifi chip. By exploring functionality with the...

Introduction NodeMCU is Lua based firmware of ESP8266. Generally, ESPlorer IDE is referred for writing Lua scripts for NodeMCU. It...

Stepper Motor Basics Stepper Motor is a brushless DC Motor. Control signals are applied to stepper motor to rotate it in steps. Its speed...

Introduction Servo motor is an electrical device which can be used to rotate objects (like robotic arm) precisely. Servo motor consists...

Introduction DC motor uses Direct Current (electrical energy) to produce mechanical movement i.e. rotational movement. When it converts...

XBee radio family consist of various XBee RF modules. Each having different specification. Generally, XBee modules operate within ISM 2.4...

Introduction SIM900A Modem can work with any GSM network operator SIM card just like a mobile phone with its own unique phone number....

Introduction ESP8266 is Wi-Fi enabled system on chip (SoC) module developed by Espressif system. It is mostly used for development of IoT...

Introduction It is used for many applications like wireless headset, game controllers, wireless mouse, wireless keyboard, and many more...

Introduction OLED is Organic Light Emitting Diode that emits light in response to an electric current. OLED display works with no...