Baby care Urine check Alarm

Baby care Urine check Alarm is a nice create. Its work when baby leave urine than the alarm will be on. It’s very easy to create, check alarm circuit just like a calling-bell circuit. But it will be need urine check plate. When urine touch the plate, then the circuit well be connect and the bell ringing.

Urine check plate

Most often parents don't understand that their child is leave urine. For this reason some time baby catch cold. Cold is a danger disease for baby.
So every parents may use baby care urine check alarm. It has no side-effect for baby.

Require equipments :

1. Capacitor 220 Micro farad.
2. Variable pot resistor 100k.
3. Transistor(1) BC548.
4. Transistor(2) C548.
5. IC UM66.
6. Speaker 8 Ohm.
7. Urine check plate.
8. Buttery 3V DC.

Circuit diagram :

Try your self.

External charger Bank

This device making for various kinds of product's charging in critical time. It can carry easily in to a pocket.  All kinds of cell phone and MP3, MP4 also charge by this device.
It has high capacitive and long lasting buttery. It has also 2600mAh buttery Bank and quickly recharge.

Price : 38.99$

External charger Bank can easily charge ipad, Nokia, PSP, GPS, Blackberry, iphone, samsung, HTC, MP3/MP4 and also other USB device.

Don't forget to coment...............

(Tablet) Apple-iPad-Air price and specification

The Apple ipad Air built for fifth generation. It announced 22 October 2013. Apple ipad Air is a full-size tablet, it’s 7.5 millimeters thin and 469 grams weight. Apple ipad Air 2G, 3G and 4G network supported, it has digital HD 9.7 inches display and resolution 1536 x 2048 pixels. It’s Operating system iOS 7.0.4, CPU dual-core 1.3 GHz Cyclone, PowerVR G6430 (quad-core graphics) GPU, 1024 MB RAM and built-in storage 16 GB.

Apple ipad Air has dual camera,primary camera 5 mega pixels, 2592 x 1944 pixels, autofocus, check quality and Secondary camera 1.2 mega pixels, 720p@30fps, face detection.

Apple ipad Air supported many kinds of applications and GarageBand, iMovie, iPhoto, Pages, Numbers, and Keynote apps are also included in this tablet.The price of Apple ipad Air is $ 629

Now Here Have Apple-iPad-Air Price and Specification :

Key Features	Description
GENERAL
2G Network	GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900
3G Network	HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO
4G Network	LTE
SIM	Nano-SIM
Announced	2013, 22, October
FEATURES
OS	iOS 7.0.4
Chipset	Apple A7
CPU	Dual-core 1.3 GHz Cyclone (ARM v8-based)
GPU	PowerVR G6430 (quad-core graphics)
Sensors	Accelerometer, gyro,compass
Messaging	iMessage, Email, Push, Email, IM
Browser	HTML (Safari)
Radio	No
GPS	Yes, with A-GPS support and GLONASS
Java	No
Colors	Space Gray, Silver
	- Active noise cancellation with dedicated mic
	- Siri natural language commands and dictation
	- AirDrop file sharing
	- iCloud cloud service
	- iCloud Keychain
	- Twitter and Facebook integration
	- TV-out
	- Organizer
	- Maps
	- Audio/video player/editor
	- Image viewer/editor
	- Document viewer/editor (Word, Excel, PowerPoint)
	- Voice memo
	- Predictive text input
DISPLAY
Type	LED-backlit IPS LCD, capacitive touchscreen, 16M colors
Size	1536 x 2048 pixels, 9.7 inches (~264 ppi pixel density)
Multitouch	Yes
Protection	Scratch-resistant glass, oleophobic coating
CAMERA
Primary	5 MP, 2592 x 1944 pixels,autofocus, check quality
Features	Geo-tagging, touch focus, face detection, HDR
Video	Yes, 1080p@30fps, video stabilization, check quality
Secondary	Yes, 1.2 MP, 720p@30fps, face detection, FaceTime over Wi-Fi or Cellular
MEMORY
Card slot	No
Internal	16/32/64/128 GB storage, 1 GB RAM DDR3
SOUND
Alert types	N/A
Loudspeaker	Yes, with stereo speakers
3.5mm jack	Yes
DATA
GPRS	Yes
EDGE	Yes
Speed	DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps, LTE, 100 Mbps; EV-DO Rev.A, up to 3.1 Mbps
WLAN	Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot
Bluetooth	Yes, v4.0 with A2DP, EDR
USB	Yes, v2.0
BATTERY
	Non-removable Li-Po 8,820 battery(32.4 Wh)
Talk time	Up to 10 h (multimedia)
BODY
Dimensions	240 x 169.5 x 7.5 mm (9.45 x6.67x 0.30 in)
Weight	469 g (Wi-Fi) / 478 g (3G/LTE)(1.03 lb)
MICE
MSRP price	$ 629

Walton Primo G3 Full Specification and Price in BD

Walton Primo G3 | Price : 11,990 BDT only

Walton Primo G3 Smart phone has announced on May 2013. Walton Primo G3 is full 3G phone (Video call supporting). Dual 3G SIM supported and single 3G standby. It has full touch and large screen (capacitive touch). Screen size 4.5’’ and Resolution FWVGA (480 X 854 pixels). It's Operating system android 4.2 (Jelly Bean), CPU 1.2 GHz Cortex A7, RAM 512 MB. Walton Primo G3 has dual camera, Rear camera 5.0 mega-pixels with focus and face detection, Front camera VGA. Walton Primo G3 Phone size is 136 X 67 X 9.8 mm, Weight 138.94g. This phone has large Buttery power (Buttery capacity 1800mAh). Many Kinds of Android Applications supported in this phone. Other advantages like HTML browser, Bluetooth, Wi-Fi, GPRS are also available in this phone. Walton Primo G3 Price is : 11,990TK BDT only.

Now here have Wanton Primo G3 Full Specification With Price :

Key Features	Description
Operating system	Android OS 4.2(Jelly Bean)
CPU	28nm, 1.2 GHz Cortex A7
GPU	PowerVR SGX 544 MP
RAM	512 MB
Network	GSM 850/900/1800/1900 MHz, UMTS 900/2100 MHz Network speed: GPRS / EDGE/ 3G/ HSPA 3G Video Calling, UMTS + UMTS, (Dual 3G SIM supported, single 3G standby) HSDPA 7.2 Mbps, HSUPA 5.76 Mbps.
SIM	Dual SIM (dual stand-by)
Internal memory	4 GB
External Memory	Up to 32 GB expandable (SD card)
Screen Size	4.5”
Screen type	TFT (Support 16.7M Colors)
Resolution	FWVGA (480 X 854 pixels)
Touch type	capacitive touch (Five fingers multi-touch)
Camera	Rear: 5.0 mega pixels with auto focus, face detection and HDR High definition (720P) video recording, Front VGA
FM Radio	Yes (with recording)
Multimedia	Mp3,Mp4
3.5 mm Jack	Yes
Sensor	Compass, Accelerometer (3D), Light Sensor, Orientation Sensor, Proximity,
GPS module	GPS with A-GPS network-assisted GPS navigation function
Battery capacity	1800 mAh
Phone Size	136 x 67 x 9.8 mm
Weight	138.94 g
WLAN	b/g/n (Wi-Fi)
Bluetooth	Yes, V4
USB	Yes, microUSB V2.0
GPRS	Yes
EDGE	Yes
Browser	HTML
Price	11,990 BDT Only

Walton Primo R1 specification and price in BD

Walton Primo R1 | Price: 10,990 BDT Only

In Bangladesh Walton build many kinds of Mobile phone. It give's many kind of facilities. The most important think, it so cheap as another mobile. Walton Primo R1 is a wonderful android phone from Walton. It has large screen (4 inch) with multi touch, made this more attractive. Dual core with 1.21 GHz processor, RAM 512MB.It has Internal memory 4GB and up to 32 GB expandable. Walton Primo R1, 3G supported and it has also dual camera, rear camera 8 mega-pixels and front camera VGA. Price: 10,990TK BDT only.

Now here is full specification and price of symphony w90 mobile.

Key Features	Description
3G Network	WCDMA 2100
GPS	Yes, with A-GPS support
SIM	Dual SIM (dual stand-by, GSM and WCDMA)
Dimensions	125.0 × 63.0 × 10.9mm
Weight	130 g
Screen Size	4 inch, WVGA (480 × 800) pixels (~234 ppi pixel density)
Multitouch	Yes
Type	IPS, capacitive touchscreen
Operating system	Android OS 4 (Ice Cream Sandwich)
CPU	Dual-core 1.21GHz
Chipset	MediaTek MTK6577
GPU	PowerVR SGX531
Sensors	Compass, Accelerometer, Light, Orientation, Proximity
Extra Storage	MicroSD, Extended up to 32GB (8GB free)
Internal Memory	4GB, RAM 512 MB
Camera	Rear 8 MP, 3264x2448 pixels. Front VGA
Video	Yes, 720p@30fps
Features	Flash, Auto focus
Secondary	Yes, VGA, Video Call
GPRS	Yes
3G	Yes
WLAN	Wi-Fi 802.11 a/b/g/n, Hotspot
EDGE	Yes
Bluetooth	Yes, v4.0 with A2DP
USB	Yes, microUSB v2.0
Speakerphone	Yes
Alert types	Vibration; MP3 ringtones
3.5 mm Jack	Yes
Radio	Yes with recording (plays on plugged/unplugged headphone)
Messaging	SMS(Threaded view), MMS, E-mail
Games	Yes
Colors	White
Java	Yes
Browser	HTML
Miscellaneous	Facebook, Skype, MSN,Yahoo - Adobe Reader - Kingsoft office - Touchpal Keyboard - Moboplayer, Realplayer - Office (word, excel, ppt) - eBook
Battery	Standard battery, Li-Ion 1500 mAh
Status	Available. Released 2013, January
Price	10,990 BDT only

Walton Primo H2 Full Specification and Price in BD

Walton Primo H2  | Price : 13,490 BDT only

Day by day, Walton Primo has growing improve. Walton built Primo series with many advantages. Walton Primo H2 is one of them, and this phone is available in Bangladesh April, 2013. Walton Primo H2 is a smart phone with 3g video calling. It’s operating system is Android 4.2, CPU 1.2GHz and RAM 1GB. It also has dual camera, rear 8.0 mega pixels with face detector and front 3.0 mega pixels. Display size 4.5'' & capacitive touch. It’s buttery capacity 2050mAh. Available applications in this phone is Accelerometer (3D), Orientation Sensor, Compass, Navigation, GPS, Map, It also supports many other applications. It’s internal memory 4GB and up to 32GB expandable. Walton Primo H2 price in Bangladesh is 13,490Tk only. And it also gives 1 years warranty.

Now Here Have Walton Primo H2 Full specification And price :

Key Features	Description
Operating system	Android OS 4.2 (Jelly Bean)
CPU	Quad-core 1.2 GHz Cortex A7
GPU	PowerVR SGX 544
RAM	1 GB
Network	GSM 850/900/1800/1900 MHz, UMTS 2100 MHz GPRS / EDGE/ 3G / HSDPA / HSPA+dual card dual standby, UMTS, GSM Category 24, 42.2Mbps Category 7, 11.5Mbps
SIM	Dual SIM (dual stand-by)
Internal memory	4 GB
External Memory	Up to 32 GB expandable (SD card)
Screen Size	4.5”
Screen type	Full Angle View IPS (Support 16.7M colors)
Resolution	qHD (960 X 540) pixels
Gorilla Glass	1st generation
Touch type	capacitive touch (Five fingers multi-touch)
Camera	Rear 8.0 mega pixels with auto focus and face detector Full high definition (1080P) video recording, Front 3.0 mega pixels
FM Radio	Yes (with recording)
Multimedia	Mp3,Mp4
Alert types	Vibration, MP3 ringtones
Speakerphone	Yes
3.5 mm Jack	Yes
Sensor	Compass, Accelerometer (3D), Light Sensor, Orientation Sensor, Proximity
GPS module	GPS with A-GPS network-assisted GPS navigation function
Battery capacity	2050 mAh
Phone Size	132 × 68 × 10.5 mm
Weight	135 g
WLAN	b/g/n (Wi-Fi)
Bluetooth	Yes, v4.0
USB	Yes, microUSB v2.0
GPRS	Yes
EDGE	Yes
Messaging	SMS (threaded view), MMS, Email, IM, Push Email
Browser	HTML
Miscellaneous	Full Angle view - wireless screen sharing
Speed	42.2Mbps HSDPA, 11.5Mbps HSUPA
Price	13,490 BDT Only

Walton Primo C2 Full Specification and Price in BD

Walton Primo C2  Price : 3990 BDT

Walton Primo C2 announces in Bangladesh august 2013.It has nice features. Walton Primo C2 is fully smart phone and it has 2G network. It's Operating system is Android v4.2.2(jelly bend), Processor Dual core-1 GHz . It's internal memory ROM 512 MB, RAM 256MB. Walton Primo C2 has dual camera- rear camera 1.3 Mega-pixels and front camera VGA. Walton Primo C2 screen size 3.5 inches and TFT capacitive touch display. Walton Primo C2 price in Bangladesh 3,990TK BDT

Now here have Walton Primo C2 Full Specification and price:

Key Features	Description
Operating System	Android OS, v4.2.2 (Jelly Bean)
Processor	Dual Core, 1 GHz
Internal Memory	ROM 512 MB
RAM	256 MB
Network	2G GSM 900 / 1800
SIM Card Type	Dual SIM (Micro-SIM, dual stand-by)
Memory Card Slot	MicroSD, up to 32 GB
Display Size	3.5 inches
Display Resolution	HVGA, 320 × 480 pixels (~165 ppi pixel density)
Display Type	TFT Capacitive touchscreen
Camera Resolution	1.3 Megapixel
Front Camera	VGA
Video	HD, 1280x720
Alert types	Vibration, MP3 ringtones
Battery Type	Li-Ion 1500 mAh battery
Bluetooth	v3.0
Dimensions	118.63 X 63 X 12.35 mm
EDGE	Yes
GPRS	Yes
GPS Function	No
Graphics processing unit(GPU)	Mali-400
Loudspeaker	Yes
Messaging	SMS(Threaded view), MMS, E-mail
Multitouch	Yes
Other Features	Facebook, Play Store, Office suite,Video,3GP, MP4, MKV, AVI,MP3, AAC, AAC+, EAAC+, AMR,WB AMR, MIDI,Facebook, Twitter
Radio	FM Radio with recording
Sensors	Accelerometer (3D)
USB	microUSB v2.0
3.5 mm Jack	Yes
Web Browser	WAP/HTML
Wireless LAN	Wi-Fi 802.11 b/g/n
Weight	107.32 g
Colors Available	Black
Price	3,990TK BDT

About Modem and Various Types

The blessing of technology, world has connected to any place. You can one click on your computer and it connect you any part of the world. Connect you any part of the world, It’s possible for electronics device, it’s called Modem. Modem is one of the most popular hardware in communication system. Modem connects with telephone line and created communication to anyone. The name of Modem comes from Modulator and Demodulator. Modem works both of, like Modulator and Demodulator. For this reason it called Modem. It’s works at analog and digital signals. When it works then it convert analog signal to digital signal and digital signal to analog signal. Some time it called DCE (Data Circuit terminating Equipment), because it connect computer with network.

various types of Modem :

USB Modem

Wireless Modem

Fax Modem

External Modem

Cable Modem

PCI Modem

On-board Modem

Audio Modem Riser

Answer-only Modem

Internal Modem

Software Modem

Host-based Modem

Null-Modem cable

Direct connect Modem

Sony Xperia Z1 - Full Phone Specifications

The Sony Xperia Z1 was announced in 2013,september. It has big screen(5.0 inches) and also high level image quality.Sony Xperia Z1 water and dust proof, it can water resistant 30 minutes and over 1 meter.

Sony Xperia Z1 has three colors they are Black,White,Purple.

Now here have Sony Xperia Z1 full specification :

Key Features	Description
OS	Android OS, v4.2 (Jelly Bean)
Chipset	Qualcomm MSM8974 Snapdragon 800
CPU	Quad-core 2.2 GHz Krait 400
GPU	Adreno 330
RAM	2G
Sensors	Accelerometer, gyro, proximity, compass
Messaging	SMS (threaded view), MMS, Email, IM, Push Email
Browser	HTML5
Radio	Stereo FM radio with RDS
GPS	Yes, with A-GPS support and GLONASS
Java	Yes, via Java MIDP emulator
Colors	Black, White, Purple
Network	2G-GSM 850 / 900 / 1800 / 1900 - all versions 3G-HSDPA 850 / 900 / 1700 / 1900 / 2100 - all versions 4G-LTE 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 - C6903 LTE 700 /           850 / 900/ 1700 / 1900 / 2100 / 2600 - C6906 LTE 800 / 850 / 900/ 1700       /1800 /1900 / 2100 / 2600 - C6943
SIM	Micro-SIM
Dimensions	144 x 74 x 8.5 mm (5.67 x 2.91 x 0.33 in)
Weight	170 g (6.00 oz)
Display Type	TFT capacitive touchscreen, 16M colors
Display Size	1080 x 1920 pixels, 5.0 inches (~441 ppi pixel density)
Multitouch	Yes, up to 10 fingers
Protection	Shatter proof and scratch-resistant glass
Alert types	Vibration; MP3 ringtones
Loudspeaker	Yes
3.5mm jack	Yes
Memory card	MicroSD, up to 64 GB
Internal memory	16 GB
GPRS	Up to 107 kbps
EDGE	Up to 296 kbps
Speed	HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
WLAN	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot
Bluetooth	Yes, v4.0 with A2DP
NFC	Yes
USB	Yes, microUSB v2.0 (MHL), USB On-the-go
Camera	Primary 20.7 MP, autofocus, LED flash, check quality,1/2.3'' sensor size, geo-tagging, touch focus, face detection, image stabilization, HDR, panorama
Secondary	Yes, 2 MP, 1080p@30fps
Video	Yes, 1080p@30fps, video stabilization, HDR, check quality
Buttery	Non-removable Li-Ion 3000 mAh
Stand-by	Up to 880 h (2G) / Up to 850 h (3G)
Talk time	Up to 13 h 50 min (2G) / Up to 15 h (3G)
Music play	Up to 110 h
Announced	2013, September
Status	Available. Released 2013, September

Walton primo F3 full Specification And Price in BD

Walton primo F3   Price : 8490 BDT only

Walton has announced new mobile phone in October 2012, Name Walton Primo F3. Walton Primo F3 is a smart phone. The price of walton primo F3 in Bangladesh is 8490TK only. 3G, WLAN, GPS, dual sim are also available in this phone. Operating System Android 4.2.2 (jelly bean),Processor Dual Core 1.3 GHz, ROM 4GB and  RAM 512 MB. Walton primo F3 has big screen with capacitive touch, screen size  4.5-inch FWVGA and screen resolution 480×854 .

Walton Primo F3 Support Micro SD card, up to 32GB, it has dual camera, Rear camera 5 Mega pixels (LED with Autofocus) and front camera VGA.Walton primo F3 has large amount of buttery, it's capacity 1800mAh. Motion sensors Accelerometer (3D), light sensors (Brightness), Proximity is also available in this phone.

Network speed - GPRS / EDGE/ 3G / HSPA+

Naw here have Walton Primo F3 full specification and price :

Key Features	Description
Operating System	Android 4.2.2 (jelly bean)
Processor	Dual Core 1.3 GHz
GPU	Mali 400
RAM	512 MB
ROM	4GB
Call mode	Dual card dual standby
Network type	UMTS + GSM
Network band	GSM 900/1800/1900MHz, UMTS 2100 MHz
Network speed	GPRS / EDGE/ 3G / HSPA+
Screen size	4.5-inch FWVGA, TFT Capacitive Touchscreen
Resolution	480×854
External Memory	Support Micro SD card, up to 32GB
Rear camera	5 Mega pixels (LED with Autofocus)
Front camera	VGA
Video recording	HD (1280×720)
Radio	Support with recorder
Battery Capacity	1800mAh
Buttery Type	Lithium battery
Connectivity	WLAN b/g/n (Wi-Fi), Bluetooth V4, Micro USB V2, 3G – Yes UMTS.
Motion sensors	Accelerometer (3D)
Light sensors	Light (Brightness), Proximity,
GPS module	GPS with A-GPS network-assisted GPS navigation function
Weight	141g (with battery)
Dimension	135 X 67.2 X 10.5mm
Price	8490 BDT Only

80w Mini IPS

In Bangladesh many people have to face unbearable problem for load shedding. So students cannot study properly for absence of electricity. So this circuit may give you solution for removing unbearable problem. Now here have some idea of mini IPS.

Require equipments :

Mini IPS circuit

• DC 12v to AC 220v circuit (80w)
• 220v AC transformer (3A)
• Auto charger circuit
• 12v Buttery (8.5A)
• Energy saving light
• Safety cover box.

At first take a transformer and connect secondary side with auto charger  circuit. Auto charger circuit using for safety charge of buttery. After auto charger circuit connect with DC to AC circuit and buttery. Dc to AC circuit receive 12v from buttery, and supply 220v AC. This IPS work automatically. Then 25w two energy saving light connect with mini IPS. This mini IPS can power supply for two hours.

Symphony W150 Full Specification and Price in Bangladesh & colors

Symphony W150  | Price : 14,990 only

Symphony handset is a new experience in your life. It can give many facilities in limited money. Symphony W150 is a smart phone and many kind's of application is supported in this phone. It's operating system is Android 4.2.1 jelly Bean, display 4.7'' IPS HD capacitive full touch. It has dual camera, rear camera 8 mega pixels and front camera 2 mega pixels. It's processor 1.2 GHz Quad core. Symphony W150 3G supported with video calling. This phone has 1GB RAM & 4GB ROM . Available application is Facebook, Youtube, Android Market (play store), Nimbuzz, Skype, Office suite, Dictionary, Temple Run, Gmail.

This phone also support Full HD 1080p video. GPS, G-sensor, Proximity & Accelerometer sensor, HD Game support, Micro SIM support.

Symphony W150 available three color, they are Black, White, Blue.

Now here have Symphony W150 full specification and Price:

 

Key Features	Description
Operating system	4.2.1 Jelly Bean
Processor	1.2 GHz Quad core
Display Size	4.7” IPS HD Capacitive Full Touch
Camera	8MP Primary + 2MP Secondary
Multimedia	MP3, MP4, FM
Data Services	3G, EDGE,GPRS ,Wifi
Phonebook Entries	Unlimited
Multitouch	Yes
Display Resolution	HD (1280*720)
CPU	1.2 GHz (Quad Core)
GPU	PowerVR SGX 544
Internal Memory	RAM 1GB (User Available RAM 971 MB)
Storage	ROM Total 4GB(User Available ROM 1008 MB), Extended up to 32GB
Camera Feature	Flashlight, PC Camera
Battery	1800 mAh Li-ion
WLAN	Wi-Fi 802.11, Wi-Fi Hotspot, HSDPA:5.76Mbps; HSPUA: 7.2Mbps
GPS	Yes
Stand by time*	280 Hour(*depend on phone setting, Network)
Talk time	04 Hour(*depend on phone setting, Network)
Audio Player	Yest
Audio Recorder	Yes
Video Player	Record Full HD 1080P Video
Video Recorder	Yes
3.5 mm jack	Yes
Dimension	7.9mm
Recorder	Audio, video & call recorder
Bluetooth	Yes
USB Mass storage	Yes
USB Modem	Yes
MMS	Yes
Email	Yes
Built in Applications	Angry Birds, Highway rider, Facebook, Youtube, Android Market(Play Store), Temple Run, Nimbuzz, Gmail, Skype, Office suite, Dictionary
Special Features	GPS, G-sensor, Proximity & Accelerometer sensor, Full HD 1080P Video support, HD Games support, 7.9mm super slim, Micro SIM support
Color	Black,White,Blue
Price	14,990 BDT only

Walton Primo NX Full Specification and Price 17,990TK

Walton primo NX  Price: 17,990 Tk only

Walton primo NX is full Android mobile phone. It's officially declared 5th july 2013. Walton primo NX latest and smart handset from Walton.

Walton Primo NX phone is 3G supported. It's operating system 4.2.1 (jelly bean). Walton primo NX price in Bangladesh is 17,990 TK. It's buttery capacity 3000mah, processor-28nm Quad-core 1.2GHz . It has dual camera (Rear camera 13.0 mega pixels and Front camera 3.0 mega pixels). It's Memory 1GB and storage space 4GB. Walton primo NX dual sim card standby, Network speed-GPRS / EDGE/ 3G / HSPA / HSPA+

Walton primo NX has big screen (5.3-inch HD) and screen resolution-1280 × 720. It has capacitive touch screen and 3.5 mm narrow frame.

 

 Now here have Walton Primo NX Full Specification and price :

Key Features	Description
Operating System	Android 4.2.1 (jelly bean)
Processor	28nm Quad-Core 1.2GHz
GPU	1GB
Storage space	4GB
Call mode	Dual card dual standby
Network type	UMTS/GSM + GSM
Network band	GSM850/900/1800/1900MHz, UMTS 2100 MHz
Network speed	GPRS / EDGE/ 3G / HSPA / HSPA+
Screen size	5.3-inch HD
Resolution	1280 × 720
Touch & protector	Capacitive touch screen with 1st generation gorilla glasst
Screen type	ultra black level with vivid IPS
Sensor	CMOS
Rear camera	BSI 13.0 Mega pixels with F/2.2 & Blue glass
Front camera	3.0 Mega pixels
Video recording	Full HD (1080p) (1920x1080)
Flash	Support
Radio	Support with recorder
Connectivity	WLAN b/g/n (Wi-Fi), Bluetooth V4, Micro USB V2 USB on The Go (OTG), Mobile High-Definition Link (MHL) Wireless Display Sharing
Motion sensors	Gyroscope, Accelerometer (3D), Gravity, Linear Acceleration, Orientation, Corrected Gyroscope Sensor, Rotation Vector
Light sensors	Light (Brightness), Proximit
GPS module	GPS with A-GPS network-assisted GPS navigation function
Weight	189g (with battery)
Dimension	152 X 77 X 9.9 mm
Battery Capacity	3000mAh
Type	Lithium battery
External Memory	Support Micro SD card, up to 32GB
Price	17,990 BDT Only

Emergency Light and Block Diagram

What is emergency Light ?

Emergency lighting system means, when absent of electricity and usual lighting is failed then emergency light automatically on. It can limited time backup by internal Buttery. when the electricity available then emergency light automatically off and automatically recharge Buttery. Here have emergency lighting picture.

Emergency Light

  Handmade Emergency Light Block Diagram :

This emergency Light made for removing darkness in your bedroom, drowning room, kitchen and corridor etc. It can move one to another and it's easy to carry.

Required equipments :

Resistor   - 110k

Diode      - 5 pic

Capacitor - 1uF/400V Poly

LED        - White

Buttery    - 4 Volt

USB Dongle 2.0 (Bluetooth)

This Bluetooth Drive can, non Bluetooth computer convert into a Bluetooth enabled. It can contact with wireless Bluetooth connection such as PC, Networking, Dial-up, Fax, Mobile Phones etc. It also connection to Bluetooth headset and transferring voice data and It also multi languages supporting.

 

 Specification :

Key Features	Description
Bluetooth Specification	V2.0 & v1.2 compliant
Supporting Profiles	Networking, Dial-up, Fax, LAN access, and Headset
Operation System	Windows98, 98se, Me, 2000, XP, Vista, Windows7
Interface	USB compliance
Symbol rate	3Mbps
Receiving/sending range	0-100m
Price	110TK BDT Only

(USB) Pen Drive Device

USB Pendrive

The full meaning of USB is Universal Serial Bus. It is a flash memory device. It can transfer audio, video and data files from a computer. Pen Drive is easy to use for new generation. It can move the data from the hard disk device to another drive in a several minutes. Pen Drive is also easy to carry, enough to fit in to pocket and it also smaller then a Floppy disk. USB pen drive using as a boot-able device. Laptop/computer can be setup by Pen Drive. Available Pen Drive in the market is 2GB, 4GB, 8GB, 16GB, 32GB & 64GB. Different types of Pen Drive are available in the market but all kinds of Pen Drive are not boot-able. So check Pen Drive for boot before you buy.