DefinePK

Abstract

It is an effort aimed at solving a problem presented in a farm in the municipality of Saladoblanco south of Huila department, where coffee is grown mainly work developed. To dry the coffee beans for further processing a solar drying is used, in which the farmer must enter and move the coffee beans to dry evenly, withstanding high temperatures and spending considerable time. It is in the drying room where the need to improve the procedure was carried out manually and use technology to improve the quality of life of the farmer, therefore, consequently an electronic and mechanical system was installed for attaining the movement of grain comes of coffee throughout the solar dryer, activated wirelessly using Bluetooth communication between the aforementioned system and smart phone. Figures of mechanical systems implemented in the solar dryer with sprockets, steering wheels, chains and AC motor of a horsepower, which moves a rake moldboard along the drying room are presented, making the movement of grains coffee. For motor control, a small card to activate and deactivate an ATmega328 microcontroller was designed; to take data from the temperature and humidity sensor and a communicator DHT11 the HC-06 Bluetooth 30 meter range was used.