This service activity will be focused on everything related to assembly, software installation and computer troubleshooting for participants in the Karang Putih Community Learning Center (PKBM). The activity steps are carried out in several stages, starting from field surveys, literature studies, discussions, to the implementation of training activities that use an approach between theory and practice. Indicators of the success of this activity are the Assembly Training, Software Installation and Computer Troubleshooting. This training is used by partners, by seeing that this training has been in accordance with the needs of the community in the partner environment; This training can help the educational process and skills in practice quickly; and this training can be conducted by other Community Learning Activity Centers (PKBM). The attention of the participants in this activity was quite large, almost all of them were active in the discussions and practices that were carried out. From this discussion and training it was revealed that about 75% of the participants had understood the material as a whole.

Energi listrik adalah salah satu kebutuhan utama bagi usaha pertanian hidroponik. Mereka butuh untuk mengalirkan nutrisi tanaman melalui air secara terus-menerus menggunakan pompa. Jika sumber energi listrik terputus, maka akan menyebabkan tanaman tidak tumbuh sempurna. Oleh karena itu, pada kegiatan ini dilakukan penerapan sel surya sebagai energi listrik alternatif pada mitra pengabdian Alfi Hidroponik. Kegiatan dilaksanakan dengan merancang kebutuhan sel surya pada usaha hidroponik. Batrai Aki 40 Ah dapat menjadi sumber energi listrik bagi usaha mitra yang kebutuhan dayanya 85 watt selama minimal 10 jam. Selain penerapan sel surya, pada pengabdian ini juga dikembangkan beberapa sensor untuk memonitor suhu dan kelembaban lahan pertahian. Kegiatan ini dapat menjawab kebutuhan mitra dan masih diperlukan penerapan teknologi lainnya pada usaha hidroponik untuk optimalisasi produksi mitra.

Digital Signal Processing (DSP) is a mandatory course for students of the Electrical Engineering Department in Universitas Andalas. The course is to provide an understanding of concepts of digital signal processing as well as its application. Teacher-centred Learning was used to deliver the course materials, which lead to the course learning outcome (CLO) not sufficiently fulfilled. This article is aimed at describing the implementation of cooperative learning method in DSP class. The objective of the research is to identify the effectiveness of the method in achieving the expected learning outcome in learning DSP. The study is conducted at the DSP class of Electrical Engineering Department at Andalas University. The data are collected by giving self-assessment, homework, a project and exams as tools for assessing the CLO. The analysis is done by relating the concept proposed with the target set in the semester learning plan. The result of the study is presented descriptively.

Training of Computer network using Miktrotik at the Integrated Modern Islamic Boarding School of Dr. Muhammad Natsir at Alahan Panjang is one of the solutions to overcome the problem of the effectiveness and efficiency computer user. The training was started by a field survey to laboratory of the information and communication technology (ICT) at the School. In this survey, discussions were held on what problems are very important and get priority to find solutions in increasing the effectiveness and efficiency of computer use at the School. The results of the survey agreed that computer network training with Mikrotik would be held in order to increase the effectiveness and efficiency of computer use on it. The second activity was the preparation of computer network training with Mikrotik. Preparation was carried out in the form of discussions with teammates to determine materials and methods that were more efficient and effective in the implementation of computer network training with Mikrotik at the Information and Communication Technology (ICT) laboratory. The results of the discussion agreed that the training would be provided in the form of presentations and hands-on practice. The third activity was the implementation of computer network training with mikrotik. This training was provided for 2 days, namely Saturday and Sunday. The first day was done by shared knowledge about the basics of computer networks and Mikrotik. The second day, students did a computer network training with Mikrotik. The fourth activity was the evaluation of computer network training activities with Mikrotik, to evaluate the activities that have been carried out and to obtain suggestions and input for future improvements.