I used an LCD shield to display the current temperature and speed of the fan, but you can use the circuit without the LCD display. You also need to select the transistor by the type of fan that you ...

Lab Note The hardware configuration described have been tested with an Arduino UNO R3, a 16×2 LCD, and an I2C LCD backpack purchased from an eBay seller. Further, the example sketch has been fully ...

Posted in Arduino Hacks, Cellphone Hacks, home hacks, Microcontrollers Tagged freeduino, gsm, sms, sms messages, temperature, temperature-control ← Zero Gravity (sort Of) On A Budget ...

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute (RPM). You don’t need much… ...