Make an EC/pH/ORP/temperature sensor device to monitor water. Interact with it through a website using Bluetooth Low Energy.
Project tutorial by uFire
A simple device that makes controlling humidity and saving energy a snap. Operates as easily as a thermostat.
Project tutorial by Shaeroden
A simple, low-cost flex and pressure sensor!
Project tutorial by Jen Fox and Hacking STEM
Use a DHT22 sensor with Arduino to acquire room relative humidity, temperature, humidex. Show values on display. Log data with MATLAB.
Project tutorial by dancili
Detect movement up to 30' away which is useful in motion-activated projects such as a security system or automatic lighting in a classroom.
Project tutorial by ejshea
An interesting way to increase sensitivity and reduce the noise of the ADXL335 analog accelerometer.
Project tutorial by Mirko Pavleski
Build a table lamp that's sturdy and smart.
Project tutorial by msr048
Interfacing a VK16E GPS module with an Arduino.
Project tutorial by alaspuresujay
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