VAYU CYCLONE

A little bit research: #VayuCyclone is making pattern which is going to hit the western india i.e. #Gujrat tomorrow. This will ultimately affect #karachi and will stop sea breeze due to which heat wave will occur and temp will rise in khi. As per my personal analyze, this cyclone can hit to Karachi coastal areas. This would be category 2 cyclone. Metro-logical dpt sindh, khi announced high alert for heat wave. May Allah protect every human being from this cyclone.

#Vayu #heatwave #weather

Some Facts of Pakistan Nuclear Weapon

A.Q khan being patriotic person, he was influenced by 1971 for loss of East Pakistan. After India launched nuclear weapon in 1974, he wrote to Zulfikar Ali Bhutto to develop own weapon based on Uranium. On December 15, 1975, he left the Netherlands for Pakistan, accompanied by his wife and two daughters. He carried drawings of gas centrifuges (used for uranium separation), his blueprint copies and parts suppliers list.
First he started work with Pakistan Atomic Energy Commission (PAEC) but due to several disagreement and complexion, A.Q. Khan founded the Engineering Research Laboratories (ERL) near Kahuta on 31 July 1976. Pakistan acquired blueprints of nuclear weapon from China in 1980 and nuclear parts from European countries suppliers.
At ERL, G.D. Alam solved the major centrifugal problems for uranium separation. A.Q Khan joined the team of theoretical physicists headed by theorist Dr. GD Allam. Their joint cooperation leaded them to successfully separation of 235U and 238U isotopes. Pakistan carried out first successfully cold test of nuclear weapon in 1983. But the real test was required to claim. Before 28th May explosion, there was also a problem that PM Nawaz Sharif did not allow scientists and engineers name include in nuclear test preparation but later after A.Q khan protest to Joint chief, he included their name and made sure presence of A.Q Khan and other engineers.
Finally, on 28 May 1998, Pakistan successfully detonated first nuclear device under codename Chagai-I. I bet, many of us would not know about Chagai-II, which was detonated two days later on 30 May 1998 under the leadership of Samar Mubarakmand (PAEC) but this weapon was based on Plutonium.
In 2004, A.Q Khan was arrested for supplying nuclear technology to Iran, North Korea and Libya. He accepted and then General Musharraf pardoned him. Therefore till 2009, he was under house arrest.
I personally believe this was his passion and patriotism to Pakistan that he leaved Natherland from his lavish life and came back, insisted Zulfikar Ali Bhutoo and made us proud by tested Pakistan nuclear weapon.

#28مئی_یوم_تکبیر
#SalutetoDrAQKhan
#PakistanTakbeerDay

Internet of Things (IoT) and Smart City in Pakistan

IoT in simple words is a technology which allows daily use objects to be sense, monitor and control from your smartphone. It includes everything from your hand watch to monitor your blood pressure, fuel alert in car, alert if your refrigerator out of eggs, coffee maker, air conditioner, smart doors and so on. All the devices embedded with sensors which allow devices to be smart enough and able to share information to its owner or communicate with other device. For example, your watch will tell your coffee machine to make your favorite coffee at morning wake up. Isn’t cool?

Main purpose of cultivating IoT is only to make life easier. IoT is revolutionizing many sectors such as agriculture, healthcare, transportation, smart homes, industries and manufacturing. Though, other countries are achieving target of smart city. In Singapore, the city can even detect if people are smoking in unauthorized zones or if people are throwing litter out of their buildings.

Pakistan is now in the state of adopting IoT in every sector. Pakistan telecom market is highly favorable with over 50 million number of 3G/4G subscribers. IoT is cost effective solution, as prices of sensors and processing devices are being decreased, while internet users are increasing.

Pakistan government needs to take some serious steps now for future. Although, Punjab government is leading in Information Communication Technology (ICT) and implementing free wifi project which aiming for smart city. But this is not enough, Pakistan needs stat-of-the-art research center for future smart city in each province to promote IoT and its application for smart cities, especially for the city like Karachi. Without this step, smart city is just a dream!

Engr. Yasir Iqbal

Karachi.

home automation using Internet of Things (IoT) by YnStek

Samsung unveils 8K Artificial Intelligence (AI) QLED TV

Samsung unveils its 8K smart Artificial Intelligence (AI) QLED TV at first look 2018 event. This LED with Ambient Mode turns your LED to intelligent mode. It has lots of features such as it can show you weather conditions and smart enough that can change picture according to sunny, rainy or snowy day. This LED TV connects your home to outside world. Using ambient mode, this LED can adjust its picture according to environment just like your background wall. Samsung introduced "one invisible connection" cable that supplies both power and data to LED. It's SmartThing app platform will let you control everything in your home.

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Wireless Controlling Home Appliances Using RF Trx 433Mhz 

DTMF Based Project

Dual-tone multi-frequency signaling DTMF Based Project using M8870 IC

By Yasir Iqbal

DESCRIPTION

In this project, which based on DTMF decoder Ic M8870, we showing the output of M8870 ic in 7 segment. The 4 bit data output of M8870 ic further connected with LS7447 decoder which is BCD decoder to 7 segment display unit.

Input tone from mobile gives to M8870 ic which further connected to BCD decoder LS7447 ic and then 7 segment.

WORKING

When we press any key from mobile (mobile keypad tone should be on) the tone goes to decoder ic which receiver certain key frequency and then converts to 4 bit data which further given to BCD decoder and then 7 segment connected to BCD decoder show that number which key pressed on mobile.

It can remotely operate when someone calls to that mobile (which is connected to circuit) and remotely press any dial number which can be received and circuit can show dial pressed number of caller .

Circuit Diagram

Components required

1. DTMF decoder IC (M-8870)                          5. BCD decoder 7447
2. Resistors (100kΩ; 70kΩ; 390kΩ;470Ω)         6. 7 Segment
3. Capacitors (0.1µFx 2)
4. Crystal oscillator (3.579545MHz)

Table showing DTMF Low and High frequency tones and decoded output

Uses of other pins:

• The entire process from frequency detection to latching of the data, is controlled by steering control circuit consisting of St/GT, Est pins, resistor (390kΩ) and a capacitor (0.1µF).

• 5th Pin, INH is an active high pin, inhibits detection of A, B, C, D tones of character.

• 6th Pin, PWDN is an (active high), inhibits the working of oscillator thus stops the working of our circuit.

• The 10th pin 10; TOE is the output enable pin which is active high logic and enables the latching of the data on the data pins Q0, Q1, Q2, and Q3.

• 15th Pin StD is the Data valid pin, turn out to be high on detection of valid DTMF tone or else it remains low.

• Pins 7 (OS1) and 8 (OS2) are used to connect crystal oscillator. An oscillator of frequency 3.579545 MHz is used here.