An Arduino Uno provides the processing power and drives the serial monitor. A joystick and a Hitachi H48C accelerometer are mounted on a breadboard and wired to the Uno.

A rolling average of five inputs are used to help smooth the display data, which is shown on the 2.8″ LCD screen seen above. Posted in Arduino Hacks Tagged chest strap , heartrate , monitor , polar ...

Most already come complete with the UNO board and a bunch of components like LEDs, a temperature sensor, a DC motor, a servo motor, and an LCD module. Then, there's the matter of the power supply.

Build This DIY Moisture Monitor and Never Kill Another House ... • Arduino Uno ($28) or Arduino Uno Starter Kit ($100 ... Serial.begin(9600); // set up the LCD's number of columns and rows: lcd ...

If you want to DIY solution to your energy consumption, here's how modders created a home energy monitor from an Arduino, some wiring, and a little custom code. Tech. Smartphones; ...

The idea here is to use a cheap clock from IKEA, wire in a bunch of LEDs, connect and Arduino, and then use the 1Sheeld to trigger color changes depending on the traffic time between two points.

If you have allergies than you've likely considered picking up an air quality sensor for you house at some point. However, a good air quality monitor will run you upwards of $290.

Using a small LCD screen and the power of the Arduino Nano development Board the small palm size monitor has been enclosed in a waterproof 3D printed case and is equipped with waterproof buttons ...

– Arduino Uno or similar such as the new Arduino 101 or Genuino – £28 or $40 (cheaper clones are available) – Arduino 16×2 LCD screen with keypad £2.50 or $3.60 – 15m of 3 core cable ...