BBFuino is a clone of Arduino which is specially designed to fit onto breadboard for prototyping and learning purposes. Like Arduino, it can be used to develop interactive objects like taking inputs from switches or sensors, controlling a variety of light motors and other physical outputs. BBFuino is using Atmel microcontroller Atmega328 loaded with Optiboot bootloader. This feature makes it compatible to Arduino IDE and sample codes provided by Arduino.
In this project, we are going to experience on how to control the DC motor speed in PWM mode according to the changes of the LM35 temperature sensor like air-conditional. The DC motor speed will increase according to the temperature change to higher and decrease on the opposite.
Nowadays, there are many type of temperature sensor is come with different output form and also the temperature range such as thermocouple, thermistor, infrared, RTD. In here, we pick LM35 as our temperature sensor due to it have a linear output and also suitable for normal use like weather temperature measuring.