Archive for September, 2014

review ip camera

Posted on September 29, 2014. Filed under: Indonesian, Review, Teknologi Informasi |

IP Camera is a camera surveillance / CCTV that monitor / record movements, it is similar to CCTV but much more simple and sophisticated because it has much features like Network & Processor, so you no longer need a DVR to be accessed via the web / internet.

but to be able to record, you should require onlinestorage facility or in IT term called Cloud, so the recordings will be saved at overseas servers, generally to be able to use this facility is not free, so if you buy it, then you can use it.

advantages compared to conventional CCTV:
1. more power-saving
2. does not require a DVR and hard drive (if using the cloud) then the risk of hard drive damaged is none (DVR using the hard drive as a data recording storage )
3. more practice / simple when setting up, because fewer components are used also more compact because not take place to much.

4. more cheaper if only use one camera, because if you want to use many camera, it’ll be cheaper when using CCTV.

but there are also disadvantages, like:
1. price per IP cameras are more expensive than the price per CCTV camera.
2. if you are not using Cloud Storage, then you still must have to use a DVR to record or you can use a PC / Laptop alternatively.
3. IP cameras are generally made of thin plastic and prone to be broken / damaged if dropped, it’s also becoming warm to hot if you use it at long time.

there are many IP Cam sold at the market nowadays, from well-known famous brands (expensive) to unusual unknown brand (cheaper).

since my clients give low budget, then i decide to buy DLINK brand, because many peoples who already bought it (from the reviews on the web).

At the first I suggest to buy the DCS930L Type because it’s the cheapest, also he does not need Night Vision / see in the dark since it would be monitored only in the lighted room, but eventually for future consideration i buy better DCS- 933L Type , since it’s being given promotion and discounts so the price i bought it around 975,000.

 

 

17_48_04
above is the photos from darkest room without any of lights, the cam still shows clear images

Con’s:
1. it doesn’t have any Micro SD slot for offline save

How to Setup :
1. follow step by step instruction given on the appropriate box / installation documents
2. Put the cd driver into the PC, and then install the application (D-View Cam) on a PC.
3. install application in Android Gadgets from Google PlayStore called mydlink Lite.
4. register your account on mydlink.com , then open you mobile application
5.
you should be able to view the IP Camera Remote.

to use the internet connection, you can use the cable internet or ISDN Provider (Speedy) or even you can use the mobile modem like Bolt , or the better from Telkomsel Jumper.
i’ve used Jumper Telkomsel which is cheaper but given an extra 1 year free intenet.

Setup your DLINK to connect via DHCP to become WiFi Extender from the Jumper SSID, then disable the Firewall on the modem, then it should be work. 🙂

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VB6 : cara cepat membaca data

Posted on September 24, 2014. Filed under: Teknologi Informasi, VB6 |

Dear all, berikut tutorial singkat khususnya programming menggunakan Visual Basic 6 atau disingkat VB saja
VB adalah bahasa pemrograman visual berbasis desktop / form, sehingga umumnya program2 yg dibuat olehnya berupa Form2 yg berjalan di sistim operasi Microsoft Windows.

 

awalnya VB dibuat dengan bahasa Basic dan ditujukan untuk windows 95/98, dan sempat tidak berjalan / mengalami sedikit kendala di windows 7 service pack 1. Microsoft pun kabarnya sempat akan menyuntik mati VB 6, namun karena banyaknya petisi online yg meminta agar VB dihidupkan kembali, karena berhubung banyaknya program2 baik kecil maupun skala enterprise di-develop oleh VB6 akhirnya Windows 8 kembali full support VB.

VB classic memiliki kesamaan dan perbedaan dengan VB.NET dan VB.NET sendiri sudah berevolusi cukup banyak mulai dari awalnya .NET 2003 , 2005, 2008, 2010 sampai saat ini yaitu VB 2012. tentunya dengan berbagai fitur baru yg sangat melimpah.

namun saat ini saya hanya akan membahas VB Classic yaitu VB6, karena program VB ini bisa dibilang cukup sederhana dan yg PALING SANGAT TERPENTING adalah KECEPATANNYA !, ya betul saudara2, sudah saya rasakan sendiri. bedanya dengan VB.NET, meskipun katanya PC jaman sekarang sudah sangat kencang / cepat karena canggih (sudah sampai Core i7) namun saat men-DEBUG atau istilah kerennya Trace, kecepatan & kesimpelan VB6 masih tidak bisa dikalahkan oleh .NET terbaru sekalipun.

dan saat program dirunning pun, umumnya lebih cepat, mengapa ? ada beberapa faktor yg menjadi penyebab, diantaranya :
1. tidak menggunakan IL (intermediate language) atau bahasa perantara, beda dengan .NET yg jika di-compile akan menjadi IL dulu lalu menjadi .EXE, VB jika dicompile akan langsung menjadi bahasa mesin (.exe) akibatnya computer langsung membaca tanpa harus menterjemahkan terlebih dahulu.
hal ini juga menjadi keuntungan VB 6 karena jika men-crack / decompile .exe maka paling mentok cuma dapet Form nya , sementara code nya berantakan,

beda jika .NET jika tidak di-Encyrpt , maka Class-class.dll yg dicrack akan muncul semua code2 yg pernah kita buat. Dimana hal ini pernah saya lakukan terhadap bekas karyawan yg saya gantikan posisinya, dia membuat program program ASP.NET dengan class.dll yg tidak dia Encrypt dan dia tidak memberikan sourcenya, sementara saya harus melanjutkan pengembangannya, mau tidak mau / suka tidak suka demi keuntungan perusahaan maka saya harus membongkar programnya 😦

oklah, kok jadi ngawur / OOT gitu 😛  langsung saja to the point
ada beberapa cara mengakses data dengan VB 6 namun saya hanya menggunakan yg paling stabil & cepat saja yaitu dengan ADO (ActiveX Data Object)

cara untuk membaca data menggunakan metode ADO VB 6 adalah :

pertama, add reference dulu berupa library MSADO.dll ke dalam project yg anda buat.
lalu buat form misalnya Form1.frm
lalu tekan F7 untuk masuk ke code-behind nya
Sub Tes ()
‘1. buat Connection String
Dim MainDB As String
MainDB = “Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;
‘2. deklarasikan variabel recordset
Dim RS As New ADODB.Recordset
Set RS = New ADODB.Recordset
‘3. masukan SQL
Dim sql As String
sql = ” SELECT * FROM TABLENAME ”
‘4. buka RS , menggunakan read only dan locking read saja biar cepat
RS.open sql, MainDB, AdOpenForwardOnly, AdLock ReadOnly

‘5. jika RS tidak menghasilkan ada maka keluar dari Sub / Procedure / Function
If RS.EOF Then Exit Sub

‘6. selanjutnya terserah anda 😀
‘untuk membaca semua isi tabel bisa melakukan perulangan dengan While.. Wend, For .. Next , atau Do.. Loop. sy lebih suka menggunakan For Next karena sy bisa langsung tahu sudah record ke berapa perulangan terjadi, jika while maka harus di-Immediate dulu untuk melihat nilai i nya.
Dim i%  ‘sama artinya dengan Dim i As Integer
For i = 1 To RS.RecordCount

MsgBox RS.Fields(0)
MsgBox RS!nama_kolom_dari_tabel

RS.MoveNext
Next i

End Sub

MainDB harus diatur sesuai dengan konfigurasi database server anda ya ? 🙂
silahkan panggil sub Tes dari program Main anda atau di event Form_Load(), seharusnya jalan 🙂 jika tidak, mungkin ada yg salah 😀

Form_Load()

Call Tes

End Sub

Terima Kasih sudah membaca :mrgreen:

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Review Active Speaker

Posted on September 12, 2014. Filed under: Electronic, English |

There is so many active speaker sold here in market place, with various design/models, power, size, price, also comes many brand from top level like Harman Kardon, BOSE, Thonet & Vander, JBL, etc. until chinese / taiwanese made like Edifier, SonicGear, Sensonic, Creative, Logitech, MicroLab also local unpopular brand here like GMC, Simbadda, Dazumba, etc.

now briefly i want to review my mine that is Creative Inspire 2500. which is 2.1 System with 2 satelittes + 1 subwoofer. it’s look like a modern simple with black color.

the specs

Inspire 2.1 2500


Creative Inspire 2500 2.1 Speaker
Based on our most popular subwoofer speaker systems, Creative Inspire™ 2.1 2500 speakers feature more power, performance, and high quality audio typically found in high-end home stereo systems. This extraordinary subwoofer speaker system is perfect for music listening and gaming on your PC. Creative Inspire 2.1 2500 features a heavily reinforced wood subwoofer and two satellite speakers featuring Image Focusing Plate (IFP™) design for broad sound dispersion without sacrificing tonal balance.

Creative Inspire 2500 2.1 SpeakerCreative Inspire 2500 2.1 Speaker

General SPEC

Configuration
2.1
Total Power
29 Watts
Satellite RMS Power /ea
6 Watts
Subwoofer RMS Power
17 Watts
Frequency Response
40 Hz to 20kHz
Signal to Noise Ratio(SNR)
75 dB
Remote
Wired

Features

Features
Audio Input
– 3.5mm stereo mini jack
– Lime Pantone 577C
Speaker Out: RCA Jack
– Left: White
– Right: Red

 

so here is my judgement
PLUS
+. the price i bought is quite cheap, i just bought it from my ex. colleagues for about 150k
+. the sound is very natural without any crisp or shrill / piercing voice.
+. the Bass sound & pressure is quite hard from it boxed sub’s with adjustable knob
+. using separated adapter with big & tough heatsink, that assure it will be safe running in a long time.

MIN
-. old time speaker, without any additional mp3 player and no USB, SD-Card Reader.
-. too many cables used.

nowadays, the speaker with power output around of that, were sold at about 400 ~ 500 k. 😮
but despite of that, the sound quality is very good, defeated the new produced ones like Simbadda ECS E32 with modern type equipped with MP3 Player.
i’m quite satisfied & enjoy using this brand. :mrgreen:

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