Description The sensor consists of the TTP223 IC which is based on the capacitive sensing principle. It consists of a sensing electrode...

HTTP (Hypertext Transfer Protocol) is a standard application layer protocol. The function of HTTP is to request-response protocol between...

Description MQTT is a lightweight publish-subscribe-based messaging protocol. It is quicker (faster) than other request-response based...

Description The MAX7219 is a serially interfaced 8-digit LED display driver. It can be used to control up to 64 individual LEDs, or eight...

Overview of SSD1306 OLED Display The OLED module shown in the above image is a very popular module available in the market. There are...

Description The WS2812B is a popular RGB LED that is used in various lighting applications. It consists of a single LED package with...

Description LCD16x2 is widely used in embedded applications as a display. It is a 2-line display with 16 characters in each line. The...

Description In this guide, we will build a web server with the Nodemcu to display temperature sensor readings on the analog gauge. We...

Description In this guide, we’ll show you how to publish any sensor readings/data on a Google spreadsheet using the Nodemcu board. For...

Overview of Magnetometer HMC5883L is a 3-axis magnetometer which is used for measuring the direction and magnitude of the Earth’s...

Introduction MQTT is a lightweight publish-subscribe-based messaging protocol. It is quicker (faster) than other request-response based...

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

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

Overview of DC Motor DC Motor DC motor converts electrical energy in the form of Direct Current into mechanical energy. In the case of...

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

Introduction Real-Time Clock (RTC) is used for tracking time and maintaining a calendar. Many applications require keeping a record of...

Overview of GPS Global Positioning System (GPS) makes use of signals sent by satellites in space and ground stations on Earth to...