Introduction

NodeMCU GPIOs can be used to control stepper motor rotation. We can generate a sequence of control signals on the GPIO pins of NodeMCU.

Introduction

DC motor converts electrical energy in the form of Direct Current into mechanical energy in...

Introduction

A servo motor is an electric device used for precise control of angular rotation. It is used...

Introduction

DHT11 sensor measures and provides humidity and temperature values serially over a single wire.

It can measure the relative humidity in percentage (20 to 90%...

Introduction

LM35 is a temperature sensor which can measure temperature in the range of -55°C to 150°C.

It is a 3-terminal device that provides analog voltage proportional...

Introduction

MQTT is a lightweight publish-subscribe based messaging protocol.

• It is quicker (faster) than other request-response based APIs like HTTP.
• It is developed on the base of the...

Introduction

The Hypertext Transfer Protocol (HTTP) is standard application layer protocol which functions as a request response protocol in between server and client.

It is widely used in IoT...

Introduction

HTTP (Hypertext Transfer Protocol) is a standard Application protocol which functions as request-response protocol between client and server.

HTTP client helps sending HTTP requests and receiving HTTP responses...

Introduction

I2C (Inter-Integrated Circuit) is serial bus interface connection protocol. It is also called as TWI (two wire interface) since it uses only two wires for communication. Those two...

Introduction

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

• SPI Interface uses four wires for communication. Hence it is also...

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 with some work and...