Penelitian ini bertujuan untuk membuat Jam Digital Waktu Shalat Menggunakan Arduino Uno dan LED Dot Matrix P10 sebagai display dengan  ukuran 16x32 cm sehingga dapat dilihat dari jarak jauh.Adapun metode perhitunganwaktu shalat yang digunakan dalam penelitian ini yaitu metode hisab rukyat, dimana rumus waktu shalat diprogram dan diproses secara otomatis didalam mikrokontroler, sehingga tidak perlu lagi untuk menginput atau memasukan data waktu shalat setiap tahunnya.Jam digital waktu shalat yang dibuat, sudah terealisasi dalam bentuk alat yang nyata, dilengkapi dengan fitur interface IR remote sebagai pengaturan parameter tampilan dan memiliki battery backup sebagai sumber catu daya cadangan ketika sumber catu daya dari power suply padam serta alarm waktu shalat apabila telah tiba, sehingga diharapkan dapat membantu umat muslim dalam melaksanakan shalat.

The proposed digital parity generator circuit is an integrated circuit functions to detect data errors at the transmitter end, and check it at the receiving end. In digital communications, the digital messages are transmitted in the form of 1’s and 0’s between two points. It is an error free if both are the same. The purpose of this research is to implement a design method of digital parity generator layout with 0.7 micron process technology ECPD07 from Tanner Tools. Layout design starts from making schematic circuit, test function and make a layout. Next, check the layout results in terms of design rules and verify the desired functionality gradually. The results show that the circuit has functioned well as an odd parity generator. The simulation results obtained with loads CL = 25 fF, tpLH = 2nS and tpHL = 1.46 nS indicate that tp = 1.73nS or operating frequency of 578 MHz. The integrated digital parity generator circuit using transmission gate has a size of 14758 um2 (78.5 um x188 um), consisting of 74 gates.<br /><br />

Rural development has undergone significant changes since the digitization of Information and Communication Technology (ICT). Hybrid media technology has proven to make it easier for innovative villages to build networks and empower their communities to narrow the ICT gap, one of which is through community service. This community service is an effort of Gorontalo State University so that the Tridarma of Higher Education is implemented to contribute science and technology to the community. This Community Service was carried out in Tamboo Village, Bone Pantai District, Bone Bolango Regency. The purpose of this Community Service was to provide counseling on how to condition the beginning of a village so that it becomes a digital village. The expected output targets from this activity are: 1) The officials and community in Tamboo Village have knowledge of the importance of the village internet and how to manage infrastructure related to the village internet. 2) Village officials or village internet managers can have the ability to use internet facilities, which can then be developed to create village websites for digitization: village profile data, population data, village resource and potential data and other activities that can be digitized for work effectiveness and efficiency.

In planning external protection systems, the methods that are widely used are conventional and electrostatic lightning rod methods, therefore to study further, the results of observations that have been made to the industry there is still no lightning rod system so the author will try to plan and compare the plans of the two types of rods. lightning rods are Conventional ( Franklin ) and Electrostatic ( EF Lightning Protection System ) lightning rods in terms of protection, technical, economical, advantages and disadvantages. The research and observation methods were carried out in the furniture industry area of PT. Marufuji Kenzai Indonesia, with data collection techniques through direct observation, interviews, and literature studies, so that the building plan data (height, width and length of the building) are obtained and the 2020 thunder day data (IKL 238) then the data obtained is used to calculate the parameters in planning the installation of lightning rods according to the standards of SNI 03-7015-2004 and PUIPP. So that the results obtained for planning the conventional method ( Franklin ) with the placement of air terminations using the rolling ball method obtained 22 finials installed with buildings that can withstand currents of up to 160.1 kA and for the electrostatic method ( EF Lightning Protection System ) with 1 finial the building can withstand currents up to 25,891 kA, and if it exceeds this value a lightning rod will be caught.

Addition of the Guluk-Guluk Substation, it will affect the flow of power and voltage in the electric power system. Based on the analysis of normal conditions before and after the Guluk-Guluk Substation in terms of the voltage value on each connected bus, it is still within the permitted limits, while the contingency ranking calculation using the Voltage Performance Index (PIv) method can determine contingency conditions N-1 to N -3 before and after the Guluk-Guluk Substation. In this case, it was found that during the contingency conditions N-1 to N-3 before the Guluk-Guluk Substation there was a decrease in the value of the voltage which was still within the permissible limits, but in the N-3 contingency there was also an overload on the line due to the release of two generator units and one channel. After the existence of the Guluk-Guluk Substation, during the N-1 to N-2 contingency conditions the voltage value was still within the permissible limits, but the voltage drop that occurred was bigger than the condition before the Guluk-Guluk Substation. For the N-3 contingency condition the voltage value does not meet the standard due to overload on the Ujung Substation - Bangkalan Substation line and the lack of power flow.