PENGEMBANGAN ALAT PERAGA SISTEM PEMILAH BIJI KOPI BERBASIS ARDUINO NANO UNTUK PEMBELAJARAN FISIKA AGRARIS

Abstract

Coffee is one of Indonesia's export commodities which has an important role in
economic growth in Indonesia. Coffee production from 2020 to 2022 will experience
fluctuations. As for the causes of errors in post-harvest that are not appropriate to obtain
good quality coffee beans, post-harvest handling is needed by carrying out the sorting
process, washing process, drying process and roasting process. The ADDIE method is
used in developing this tool, including: Analysis stage, analyzing the need to develop a
product and analyzing the feasibility and requirements for product development, Design
stage, designing and designing a product. Development stage, development of product
design. Implementation stage, realizing the design of a development product, testing the
product developed in learning. Evaluation stage, evaluating the results of the product
developed and its application in the classroom. Validation data from three media experts
on the props developed obtained an average percentage of 91.8%, meaning that they are
very suitable for use as props. And the validation results from three material experts on the
tools and practice manual obtained an average percentage of 85.92%, which means it is
very suitable for use as a practice guide for teaching aids. Based on the average value
from the validation of media experts and material experts, the coffee bean sorting teaching
aid shows that the criteria obtained are very feasible and the results of student responses
get a value with very practical criteria for use as a learning medium. The choice of materials
and design in making practical equipment has been taken into account, apart from using
materials that are not easily damaged, the shape is also made simple.