Relay Application : Manual Forward - Reverse DC Motor

Make a manual  Forward - Reverse DC Motor schema using relay is simple.

Why this is simple? ya, you only need a DPDT relay and 2 switch one for ON/OFF motor and the other for mode F/R also don't forget the DC motor.
the schema like on the image below

Switch SW1 for controlling the motor DC forward or reverse (ON/OFF Relay) and the SW2 for ON/OFF the DC motor

this is so simple isn't? Lets Try
for another applycation you can change the switch mode with electronics control like timer or anything do you want.

Thanks

Fix a Flashdisk Problem Need to Format (RAW) Using Command Prompt (CMD)

A flashdisk need to format because some of the causes, like :
1. A hardware fault
2. Viruses
3. Need maintenace

From of the three, the no. 1 is cannot fix by the computer but no. 2 and 3 may fix using some methode, one of the methode is use the function on CMD.
There are 2 methode fix flashdisk need format using CMD that is :
Use Format function on CMD

1. Use commnd "format"
- first plug the flash on computer
- look the flash drive on  --- example drive (H:)
- open Commnd Prompt (CMD)
- type command "format [drive location]" ---- ex. drive location on H: then type format H: (look at pics below)
- click Enter then wait the process completed
- The flash will be formated to FAT32 type
- After completed please unplug flashdisk then plug again

2. Use command "CHDSK"
- first plug the flash on computer
- look the flash drive on  --- example drive (H:)
- open Commnd Prompt (CMD)
- type command "CHDSK [drive location] /R" ---- ex. drive location on H: then type CHDSK H: /R (look at pics below)

note :
> /R use if you want format + repair
> /F use if you want format only

- click Enter then wait the process completed
- The flash will be formated to FAT32 type
- After completed please unplug flashdisk then plug again

Hope the flash could be fixed

Thanks

Mengatasi Flashdisk "Please Format Disk Before Use"

Untuk Flashdisk yang minta diformat, ada beberapa penyebabnya:
1. Memang sudah rusak dan tidak bisa diperbaiki
2. Minta diperbaiki
3. Kena virus

Ada bebrapa langkah ntuk mengatasinya, diantaranya :

>Melakukan Format melalui CMD

ketik cmd pada "run"

lalu ketik "format" [drive flashdisk kita]

jika flash kita berada di (H:)
maka lakukan perintah "format H:"

tunggu hingga selesai
jika berhasil, coba masukkan kembali flashdisk ke komputer, apakah masih minta diformat.
semoga saja sudah kembali seperti semula.

>Melakukan Format melalui CMD (part 2)
kali ini menggunakan perintah CHDSK

ketik cmd pada "run"

lalu ketik "CHDSK" [drive flashdisk kita] /R
misalkan CHDSK H:/R
tunggu hingga selesai
jika berhasil, coba masukkan kembali flashdisk ke komputer, apakah masih minta diformat.
semoga saja sudah kembali seperti semula.
gunakan "/R" untuk format + repair
gunakan "/F" untuk format saja

semoga bermanfaat