Introduction Ultrasonic Module HC-SR04 works on the principle of SONAR and RADAR system. The HC-SR04 module has an ultrasonic...

DHT11 Sensor DHT11 is a single-wire digital humidity and temperature sensor, which provides humidity and temperature values serially. It...

PIR Motion Sensor PIR sensor detects infrared heat radiations. It can be used to detect the presence of living objects that emit infrared...

GSM SIM900 Global System for Mobile communication (GSM) is a digital cellular system used for mobile devices. It is an international...

Overview of LM35 LM35 Temperature Sensor LM35 is a temperature sensor that can measure temperature in the range of -55°C to 150°C. It is...

HC-05 Bluetooth Module HC-05 is a Bluetooth device used for wireless communication. It works on serial communication (UART). It is a...

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

Overview of PIR Motion Sensor PIR sensor detects infrared heat radiations. It can be used to detect the presence of living objects that...

Overview of DHT11 DHT11 is a single wire digital humidity and temperature sensor, which provides humidity and temperature values...

Ultrasonic Sensor HC-SR04 Ultrasonic HC-SR04 Module Ultrasonic Module HC-SR04 works on the principle of SONAR and RADAR system. The...

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

Introduction The keypad is used as an input device to read the key pressed by the user and to process it. 4x4 keypad consists of 4 rows...

Overview of GLCD 128x64 GLCD is a display device that can be used in embedded systems for displaying data and/or images/custom...

Overview of Nokia5110 Nokia5110 is a graphical display that can display text, images, and various patterns. It has a resolution of 48x84...

Introduction LCDs (Liquid Crystal Displays) are used for displaying status or parameters in embedded systems. LCD 16x2 is a 16 pin device...

Introduction LCDs (Liquid Crystal Displays) are used for displaying status or parameters in embedded systems. LCD 16x2 is a 16 pin device...

Introduction LCDs (Liquid Crystal Displays) are used for displaying status or parameters in embedded systems. LCD 16x2 is a 16 pin...

Introduction DTMF (Dual Tone Multi-Frequency) is a telecommunication signaling technique that uses a mixture of two pure tones (pure sine...

RFID EM18 EM18 RFID reader module is used to read RFID cards that work at 125 kHz. When an RFID card comes in the range of the reader,...

Introduction to MQTT SIM900 SIM900 enables GPRS for embedded applications. We can implement MQTT (Message Queue Telemetry Transport)...