Simple Temperature Monitoring with DHT22 & Arduino.

A simple tutorial on getting readings from an ultrasonic sensor

It reads from up to eight temperature sensors (DS18B20) and displays on the LCD display (16x2)

Give this the parameters you want and the LEDs will light up according to the temperature cold blue, green fine, red hot

This tutorial will show you how to use DHT11 with Arduino.

The VCNL4000 is a proximity sensor with an integrated ambient light sensor.

Read the soil moisture level (Dry-Perfect-Wet) and display results on a corresponding LED.