Nowadays corporate houses and offices are adopting biometric attendance systems where the attendance is recorded by putting your finger on finger print sensor. These records are saved on cloud server to be monitored from anywhere by the authorities.

RF communication is one of the most used communication technique in IoT applications, and we previously used 433 MHz RF modu

Here we are building an IoT water level monitoring system using a float level sensor and NodeMCU ESP8266 to monitor the level of water and publish it on a web-server.

CCTV cameras are very common now days and they are good tool to monitor and surveillance the home or office for any mishapenings. But still IP cameras, which provide video feed accessible from anywhere, are costlier.

Personal assistants are very popular nowadays. They help users to give information and control appliances using voice control.

The RF module consists of a 433 MHz RF transmitter and receiver modules. These are ASK (Amplitude shift keying) or OOK (Of Hook Keying) type RF modules.

Home automation now becomes an essential part of IoT applications and people use their smartphone to control home appliances from anywhere over internet.

Air Quality is deteriorating day by day and the inevitable increase in industries and urbanization would add up to make it worse.

We are already familiar with some of the popular IoT platforms like ThingSpeak, Adafruit IO, Blynk et

According to a report there will be over 20.4 Billion connected things worldwide by 2020. IoT platforms are the main facilitators in the growth of connected devices.