SElabs tech blog

লওঁতে ৩০০০টকা ভৰিব  ( ১৩৯৯/- এফেক্তিফ প্ৰাইচ মানে 3year refund আদিত চেভ হৈছে বুলি কিবা হিচাব)  ৩ বছৰে ৬০০০টকাৰ ৰিচাৰ্জ কৰিবই লাগিব  তাৰ পিছত ১৫০০/- ঘুৰাই দিব          কিন্তু একাউন্তলৈ নহয় ! পেমেন্ত ৱালেতলৈ হে  JUST TWO REASONS NOT TO BUY IT 1) JUNK KARBONN MOBILE  Really looting 6000Rs for a bad karbonn phone .karbonn is a bad cellphone company . many defects in all devices  . They have tied to airtel to dump waste model to desi ciustomers .  প্ৰথম হৈছে ফন কোৱালিতি  ই কাৰ্বনৰ নিম্ন মানৰ হেন্দচেত ... কিবাকে ৪জি কৰিছে । কাৰ্বন সকলো ফন লাখ দিফেক্ত ওলাই কম্পনি বন্ধ হৈ পৰিব ওলাইছে ।  ১গিগাহাৰত্জ(1Ghz cpu) প্ৰচেচৰ ফন বোৰ ডাস্টবিনলৈ পেলাব ধৰিছে ...

Tips what will help make a good image a great image in cell phone are topic of today . Following you must observe : Check to keep off the shadows that sunlight makes on subjects. ( ছাঁ পৰি ৰোৱা ছবি বেয়া হয়  )  Place the reflective light off buildings. (লাইত ৰিফ্লেক্ত কৰা সামগ্ৰী আতৰাই ৰাখক, যেবে কিবা চিলভাৰ কালাৰ বেগ , আইনা ) Practice during the "golden hour. "  shortly after sunrise or before sunset ( পুৱা ৰঙচুৱা ৰ'দ বা  গধুলি সুন্দৰ হৈ পৰে সকলো ফটো )  Find how the light from a window falls within a room.(খিৰিকিৰে লাইত কোন দিশে পৰিছে তাক  চাই লব ভাল ফতো হব) The smart telephone is not the very best in little light situations( কম লাইত মানেই ফতো বেয়া ) .  Dont ever use the zoom on your smart phone.( জুম কৰিলেই কোৱালিতি বেয়া হয় কাৰন সফ্...

------ Engineer Fresher jobs Job title :  Manufacturing Engineer I New College Graduate - (E1)-1704901 Company :Applied materials http://www.appliedmaterials.com/ Description : Manufacturing Engineer I New College Graduate - (E1)-1704901 Apply email :  info_india@amat.com Java IVR Developer Job title : Manufacturing Engineer I New College Graduate - (E1)-1704901 Company:Infosys India Software Description : • Bachelor’s degree or foreign equivalent required from an accredited institution. Will also consider three years of progressive experience in the specialty in lieu of every year of education. • At least Training JAVA  experience with Information Technology Manufacturing Engineer I New College Graduate - (E1)-533525 Apply email :  jaa_barta@infosys.com

Vivo V7  Vivo Electronics Corp. is a phone brand based in Dongguan, Guangdong, China. It was founded in 2009. The company is another Chinese smartphone maker but this one spends more on dealer commission and IPL  To make the markets flooded with choices , they sale too many models .  Do you know vivo and OPPO are same cell companies .  Avid indian buyer  gets confused .  Vivo  tries to copy flagship product samsung/xiaomi  but it fails there are lots of segments  But to market the  vivo guys have many many  online comparision of OPPO Vs VIVO  1. Snapdragon 635 which heat phone very fast 2. Still screen resolution is low 3. Ram is low 4. No direct video call 5. Battery capacity low for that price  6. Camera focal lens is poor 7. Camera pics are over processed in software , look unnatural

মোৰ গেমিঙ চিচতেম Can you use android as gaming system in 2017? Ans . yes , the new mobile GPUs are reaching a great level i terms of power .The new 3d games look much better in monitor and installation is easy . Our advice get this gear :    A Stunning HD monitor 19inch is fine     A compatible controller ( we recommend DRagon war controller )     USB OTG HDMI  cable   Getting a good gaming mobile , the price bracket has fallen , you just need < Rs 15,000/-   Here is a list of nice HD gamer cell phones Adreno 506 Moto G5 Plus :   Mi A1 :     Xiaomi Redmi Note 4 Adreno 530 Lenovo Z2 Plus:   Honor 8 Lite:   Adreno 505 LG Q6  buy OTG VGA cable 599Rs  AMAZON/FLIPKART  buy 24inch BEnQ LED Full HD  monitor  http://amzn.to/2xxeobK Dragon war controller :AMAZON The game controller is very high quality...

Here is  a cellphone that  harvests the  ambient energy . What is the Ambient energy? We have a blanket of RF energy surrounded by so many cell towers Harvesting energy from the environment,is the way to go for future cellphones  But the cell phones cant be created just by an antenna and signals from it , researchers at University of Washington have their own way to  do that digital communication . “We’ve built what we believe is the first functioning cellphone that consumes almost zero power,” said co-author  Shyam Gollakota Converting analog signals that to have corresponding  data that a phone can understand consumes so much energy that it’s been impossible to design a phone that can rely on ambient power sources. They have developed a special way that   takes advantage of tiny vibrations in a phone’s microphone or speaker that occur when a person is talking into a phone. To transmit speech, the phone uses vi...

    Our country is amazing  , one way moon mission , smart phones   on the other side there are billions are using  age old kerosene lamps .   Have you ever thought why  ? The Chinese lights have not  been able to replace the traditional lamp .The vendors taking china lamp are eating poor people's money . Considering to the fact that engineers only want to work in big companies no one tries to reach the poor the main problem a usable light .There are solar light but no one is reliable , of lower cost . #makeinAssam #diy #gaming #electronics There are main problems in making a nice chargeable lamp .The lead battery lasts just 150 cycle and the case is another big cost incurred by the poor .   We at SELABS have developed the bulb that takes USB or small solar and has a life of 4 years    On top cost is too low . Syska etc are seiing such bulb in 600Rs(GST RATE included)  , they charge via mai...

#makeinAssam #diy #gaming #electronics

Why suddenly two cameras ?  Smartphone cameras are improving  slowly nowadays, I will say not as fast as the marketing pic shown   however they are bound to follow  hard physical limits . We all are aware of style conscious customers they will not go for thick phone . Modern cells have  constraints of  camera area a device that’s 7mm thick, and phone companies are looking for alternative means to keep improving.  Approx in june 2016, LG and Huawei have led the new dual camera technology  new Android flagships , may be apple was buzy perfecting .  === দুটা কেমেৰা কিয় ?    কাৰন ফনৰ ৭মিমি জেগাত হাই প্ৰফাইল লেনচ চিচতেম , better sensor দিব নোৱাৰি    ।তাৰ বাবেই দুৱেল কেমেৰাৰে বহুগুন   উন্নত ইমাজ দিব পাৰিছে ।   এই দুইকেমেৰাই দিয়া ইমেজক Hardware processingত একলগ কৰি...

মোবাইলত ২০০০০/- বা তাতকে কমৰ ধন  দিছে   ,বেয়া নহবলে সকলো উপায় / সাৱধানতা লৈহে এৰিব ।  গোটেই ৰাতি লগাই ৰাখিলে কিবা বেয়া হব ?  সকলোৱে মবাইল লৈছে কিন্তু তাৰে কোনো কোনো মেনুৱেল বা আনটো   কৈ দিয়া নাথাকে  সেই এক বিষয় চাৰ্জিং  বহুতেই ভাৱে জুই লাগিব পাৰে :  Block diagram  চালে দেখিব বেতেৰী চিচতেমত নান  অংশ তাৰে মেইন হৈছে   Battery temperature detector  কিবা কাৰনত বেতেৰী হিত হৈ পৰিলে ,  ই ৰক্ষা কৰে  #makeinAssam #diy #gaming #electronics বেতেৰী বেয়া হব নেকি ?   - ডায়েগ্ৰামত power management voltage control system  দেখিছে ই ফুল হলেই কাত কৰি  ৰাখে তাৰ বাবে আশংকা...

কলেজৰ প্ৰজেক্ত কৰোতে ডাস্টবিনত পেলোৱা ধৰনৰ নকৰি ...  জৰুৰি কিবা সমাধান কৰিবলৈ কৰিব লাগে । Problem: আমি প্ৰায়ে দেখো বৰষুন আহিলেই পাৱাৰ কাত কৰে  ।  ... তাৰ পিছত ২-৩-৩০বাৰ অন অফ কৰি চায় জন সমুহ থিকে আছেনে .... গ্ৰাহকৰ হাঁহ নচৰা অৱস্থা বাৰে বাৰে কাৰেন্ট কাতে   । Can we avoid that 1920 age system with electronics? yes.. a new concept zonal check sensors কৰবাত লাইন ফল্টআছে নেকি প্ৰতিচেনচৰে চেল check কৰিব অাৰু মেইন চেন্টাৰলে দাতা দিব ইলেক্ত্ৰিকেল তাৰেৰেই মেইন চেন্টাৰে দাতা বিচাৰি চিগনেল দিব কথা হল এনে চিচতেমৰ চেনচৰে পাৱাৰ কৰ পৰা লব ... ছলাৰ আদিৰ উপৰি ছুপাৰ কেপাচিতৰ বেংক লাগিব পাৰে with 160hour backup.super cap can charge morethan 1.5lakh time so endless life সকলো জ'নত এক স্মাৰ্ত চেনচৰ বক্চ লগাব ... ই নানা প্ৰকাৰে মেইন পাৱাৰ নোহোৱাকেই চেক কৰি চেন্ত্ৰেল অফিচত কব ... ইলেক্ত্ৰিকেল বিভাগ বাইক লৈ ৰাউন্দ মাৰা দৰকাৰ নাই। কত ফেইল হৈছে গমেই পাব How to make ZONAL SENSOR ? Arduino UNO based current sens...

মবাইলৰ বেতেৰিত ১০০০মিলি এম্প পাৱাৰ থাকে ! কিবাকে বাহিৰত চাৰজ কৰিলে ৰবাটেই হওঁক বা নানা চাৰকিতৰ পাৱাৰ দিব পাৰি  চাৰকিত হৈvoltage protected chargerছে চাৰ্কিত You can use USB 5v  charger , but there is danger of exlosion, as the output of these devices is not tightly regulated to 5v. If you carefully measure and observe the output, you can see it going to 6v or more. So, I think you could use a zener-transistor circuit like this for your purpose.Adapting to 5v solar panel is  super easy . Just use the  panel in place of the Adapter USB wires !  This is too low cot circuit and the usability  is huge  In case you are trip to village where no power , make a tincan  box fitt the solar and circuit , youhave powerbank on the go !   #makeinAssam #diy #gaming #electronics

ছলাৰ ছেনিতেচন বৰ দৰকাৰী : Swachh Bhar at   Mission   ত সকলোতকে দৰকা ৰ Auto clean Toiletৰ আছিল  নকৰিলে , অসমৰে ডেকা সকলে বনাই দেখাব পাৰে ছোন !    এই পষ্টত নিজে ডিজাইন কৰা   ৩ মটৰ চিচতেম তোক বনাব সৰল , ই পাৰফেক্ত কাম কৰে .. পেনেল সকলো অনলাইনৰ ছপতে পায় ।  বজাৰৰ চিচতেম বোৰ বৰ দামী .. This a makeInaxom project . The system  will use 1)compact  3 dc motor as PUMP with ir sensor modules 2)800Rs solar panel 3)joule thief LED cost of devlopment <3000Rs সচ্চ ভাৰতৰ মিচনত এই চিচতেম লগাইদিলে বহুত ৰাইজ সেই দুৰ্গন্ধময় PUBLIC TOILET ৰ পৰা হাত সাৰিব how does it wrk ই কি কৰে M3 য়ে তেংক ফুল কৰে বাকেতৰ পৰা .... তে্ংকৰ পৰা কন মান পাম্পএ ভাল্বৰ দৰে কাম কৰি পানী ধালে .... কেইতা চেনচৰ IR based ত্ৰিগাৰ হয় each pump switch on for 20seconds

 Here we are starting  innovation revolution  in assam !   Innovation always relates to small small know how that add up to impact milllion times .   Can we make a solar security system, that runs forever ?   yes we can , but most systems need a 'battery replacement'   and  we always have to change battery after 200cycle   also many systems need wiring ! who wants to wire up house with 6 pairs of wire for 6sensors  So most viable item for a lifetime charge discharge is super capacitor . As name suuggested the supercaps are huge capacity capacitors like 1000times more but have same size as normal caps .   The circuit   Circuit ::   Its a current limited SOLAr circuit ? the 15ohm 1watter is a limiter like 180mA current   other wise circuit make dead short if the supercap is there  , that way the solar panel do not  burn out .   A ...

ছলাৰ ইন্ভাৰ্তাৰ মানেই ২২০০০-২৩০০০লয় ।  কিয়নো নিজে বনাই নলওঁ ছলাৰ চাৰকিত?  200watts পেনেল এমাজন আদিত পাবই ছোন আমাৰ ২০০টকাৰ চাৰকিতেই সেই কাম কৰি দিব পাৰে । বেতেৰী ফুল হলে ই অট' অফ হৈ পৰিব । ইন্ভাৰ্তাৰ বেতেৰীক পাৱাৰ দিওতে Grid power wastage , extra bill হৈছে । ইয়াৰে কাৰেন্তৰ বিল কমাব পাৰিব ..   ছলাৰেৰে ইন্ভাৰ্তাৰ বেতেৰীক ফিল কৰক বছৰ উপৰি বছৰ   পেনেলৰ খৰচ ওলাব + প্ৰ্ফিত । Circuit presented is simple + effective upload photo to web #makeinAssam #diy #gaming #electronics

  A solar circuit is presented here is… a device for collecting sunlight. To keep things simple, we’re using a single nicely made small solar panel for all of these circuits. The panel that we’re using for these circuits can be procured from Dx.com for as low as Rs325/- . Shop URL   http://www.dx.com/p/1-8w-polysilicon-solar-panel-black-394260 Why  this panel ?  its a   Polysilicon Solar Panel.  Easy to connect  This epoxy coated for toughness. On the back of the panel are two (thin) solderable terminals, with marked polarity. (While you can solder directly to the terminals, be sure to stress-relieve the connections, e.g., with a blob of epoxy over your wires.) .This guy throw a nice little  90 mA,   to 120mA . That is tiny power to be harvested with a super cap .  Where to Use 'The circuit '   well there are couple of use cases  viz smaller controllers that need 'small power'...

বজাৰত ছলাৰ LED lantern  এটা  ওলাইছে   ৩০০/-  পৰা ৮০০টকা    |  ইয়াত পেনেল আছে , মবাইল চাৰ্জ চকেত আছে  ,  মেইন লাইনত চাৰ্জ .. টৰ্চ আদি সকলো  |  We have examined  1)extracted the  circuit  2)found the big problems and useless features  DEADLY china LED চাইতৰ এক বিপদজনক অংশ হৈছে দাইৰেক্ত মেইন লাইন, মানে ইয়াক এচিত দিলে স্বক মাৰিব যদি USB cable লগাইৰাখে চাৰ্কিত দিলো  ১)মেইনত লগাই ৰাখোতে মবাইল নলগাব ২)চাইনাৰ কেজি চেলৰ সামগ্ৰী আমাৰ ইয়াত মেলি দিছে !  কৰবাত ৩০০ - কৰবাত ১২০০/- ইয়াক বেছিছে ছলাৰ পেনেল আছে ভাল কাম নকৰে , কম কিয় ৩)বেতেৰী ফুল হলেও মবাইলক ই ১০%ও চাৰ্জ দিব নোৱাৰে ===defects and real features =========== 1) ছলাৰত চলিব?:: =========== প্ৰথমে লৈছো  ছলাৰ feature ! নহয় ৰব , ইয়াৰ weak  পেনেলে ইয়াক ২০% মান হে চাৰ্জ দিব পাৰিব in 40hours  2)মবাইল চাৰ্জ দিম? :    নোৱাৰে বেতেৰী ১.২ভল্ত কোনো মতে ৫.৪ভ...