Kisi-kisi Soal UTS dan UAS Elektronika Beserta Jawaban

SOAL A 1) Berikut ini yang termasuk komponen elektronika dengan jenis komponen pasif yaitu ....

Kisi-kisi Soal UTS dan UAS Sistem Terdistribusi Beserta Jawaban

SOAL A 1. Berikut ini yang merupakan karakteristik dari definisi sistem terdistribusi adalah ....

Remove Bios Password and Harddissk (HDD) Laptop

I think to remove the bios password on an average PC is already can, although without having to memorize the password. the system jumpers or removing battery bios. ever see a supervisor, admin, system, HDD, bios, setup password?

Memperbaiki Kick Starter Motor Matic

Motor Matic is a motor that is the easiest to use and most in our homeland. please note that the motor also takes care of very sensitive, just like a computer that also takes care of sensitive anyway.

Gejala Kerusakan Mesin Air Submersible Metabo

Mesin Air Submersible atau yang sering disebut kebanyakan orang (satelit) ini sangat bagus, dengan sistemnya yang canggih dan fleksible. tipe mesin yang berbasis kerja di dalam tanah dan hanya menggunakan satu pipa ini, sangat berguna untuk anda yang memiliki banyak lumpur atau air kuning setelah pengeboran.

Tuesday, March 2, 2021

How To Setup Raspberry and RFID RC522 With very simple

Setup the RFID RC522 to Raspi like this:

- SDA connects to GPIO8 (Physical Pin 24)

- SCK connects to GPIO11 (Physical Pin 23)

- MOSI connects to GPIO10 (Physical Pin 19)

- MISO connects to GPIO9 (Physical Pin 21)

- GND connects to Breadboard Ground Rail. (20)

- RST connects to GPIO25 (Physical Pin 22)

- 3.3v connects to 3.3v (Physical Pin 1)





Enabled SPI (Interfaces)

pi@pi:~ $ sudo raspi-config

enabled SPI and reboot

pi@pi:~ $ sudo reboot


Test

pi@pi:~ $ lsmod | grep spi

spidev                 20480  0

spi_bcm2835            20480  0


Install

pi@pi:~ $ sudo pip3 install spidev

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple

Requirement already satisfied: spidev in /usr/lib/python3/dist-packages (3.4)

pi@pi:~ $ sudo pip3 install mfrc522

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple

Collecting mfrc522

  Downloading https://files.pythonhosted.org/packages/d5/b5/d33c0634cece0931c3c4e0978b0db58f248045c3b379ccf2d512b76fe044/mfrc522-0.0.7-py3-none-any.whl

Requirement already satisfied: RPi.GPIO in /usr/lib/python3/dist-packages (from mfrc522) (0.7.0)

Requirement already satisfied: spidev in /usr/lib/python3/dist-packages (from mfrc522) (3.4)

Installing collected packages: mfrc522

Successfully installed mfrc522-0.0.7


Make Directory and Python file

pi@pi:~ $ mkdir ~/pi-rfid

pi@pi:~ $ nano ~/pi-rfid/read.py

#!/usr/bin/env python
import RPi.GPIO as GPIO

from mfrc522 import SimpleMFRC522



reader = SimpleMFRC522()

try:

        id, text = reader.read()

        print(id)

        print(text)

finally:

        GPIO.cleanup()



Save it and test the file and tap the card

pi@pi:~ $ python3 ~/pi-rfid/read.py

627793730761


pi@pi:~ $ python3 ~/pi-rfid/read.py

658172191773




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Thursday, February 25, 2021

How To Uninstall HikCentral Professional Completely For New Version

This tutorial to make sure that you can to uninstall big resource from your drive, so How To Uninstall HikCentral Professional Completely For New Version especially in Windows 10 64bit, that is:

- Make sure all services of HikCentral have Stopped, you can see all of it on Task Manager

- Stop all services of HikCentral and PostgreSQL as it databases.

- The last we can uninstall it on Windows 10 menu such as Uninstall or change a program.



See our next tutorial of Third party database and other technique. Thank you

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