Automatic Water Pump Controller

Start the Water Pump automatically when Water level goes low in the Over head tank and Stop the pump when water is full in the Overhead Tank. This also prevent running when Sump Tank is Empty. 
Click in the Start Simulation Button to see it in the action. 
ON - OFF the switches in the bread board to see different condition.


Code is available in the TinkerCad Page. You can copy from there. 
For PCB comment / Contact us


Trick to Use WhatsApp on Your PC

WhatsApp can be used directly from your desktop without a browser. To install WhatsApp on your PC, access WhatsApp website from your computer's browser. If your operating system is Windows 8 (or newer) or Mac OSX Ten, WhatsApp can be installed on your PC. For all others operating systems, you can use WhatsApp Web in your browser.

To install on Windows 10

On your computer’s browser, navigate to the transfer page to transfer the .exe file.
Once the transfer is complete, open WhatsApp.exe to put in WhatsApp on your pc.
When the install is complete, launch WhatsApp on your pc and scan the QR code to log in.
To install on mack OSX ten.9+

On your computer’s browser, navigate to the transfer page to transfer the .zip file.
Once the transfer is complete, open the nothing file to run
On your 1st install, the appliance can prompt if you'd wish to add WhatsApp to your Applications folder and your desktop dock.
When the install is complete, launch WhatsApp on your pc and scan the QR code to log in.

To scan the QR code

On Android: Chats screen => Menu => WhatsApp Web.
On iPhone 8.1+: Settings => WhatsApp Web.
On Windows Phone 8.0+: Chats screen => Menu => WhatsApp Web.
Note: ARM processors and Linux-based systems are not supported. Use WhatsApp Web.

VPN, Proxy or Tor? How To Download Torrents Anonymously?

BitTorrent and anonymity are not the same. If you really want to keep your activity private, your best way A proxy server is an intermediary server that forwards requests for content from multiple clients to different servers across the Internet. An anonymous proxy or VPN hides the IP address of the client to bypass geo-restrictions, unblock websites. 

Tor is free software for enabling anonymous communication. Tor is a computer network run by volunteers worldwide. Each volunteer runs what is called a relay, which is just a computer that runs software allowing users to connect to the Internet via the Tor network. messaging or downloading the files.

VPN or Virtual Private Network is a group of computers networked together over the internet. A VPN is designed to provide a secure, encrypted tunnel in which to send/receive the data between the user-visitor and website/network. The information sent between the two locations through the encrypted tunnel cannot be read by anyone else.

So, what’s the best choice to anonymize BitTorrent Traffic?

Unfortunately, you will discover that free proxy servers rarely work. Public proxies have a slow connection. Proxies do not have much bandwidth. On top of that, a proxy server with an IP rotating system, will not be sufficient to give you anonymity.
Tor is very slow because your data is routed through a number of relays. ISPs are trying to block Tor relays, making it difficult for some users to connect.

With VPN your BitTorrent traffic will be completely anonymous. The IP will be replaced by the IP address of the VPN server. The tunnel of data sending/receiving is completely encrypted and secure. The paid VPN providers offer unlimited speed and u unlimited bandwidth, tons of the servers in many countries, no logging, encrypting and full anonymity. Besides that, they accept Bitcoin and allow users to stay anonymous completely. Government agencies cannot see what you are downloading, sharing or torrenting. While using Anonymous VPN you will never receive any copyright infringement letters from your ISP

So, the VPN is the best way to secure and anonymize your BitTorrent traffic completely!

Let’s make torrenting safer!


Solar Cooling System

Solar Cooling System: It is really odd to use something extremely hot as the sun is, to cool a place. Fortunately, it happens, and it also reduces electricity costs in a remarkable way.

  • Passive cooling
  • It is achieved in two steps:
  • Prevent heat transfer
  • Shading, proper window positioning and are significantly effective.

  • Proper Roof Design

    Remove heat from the building

    For hot humid climates TACS are mostly used, whereas cooling towers & solar chimneys and ventilation techniques are prefered in mild climates.

     Active Cooling – Thermally Activated Cooling systems


    • These systems use the sun to provide 30% to 60% of a building’s cooling requirements. Usually, they are supported by an alternative fuel source such as natural gas.

     TACS is divided into two categories:

    Absorption coolers

    Desiccant coolers


    • Generally, TACS are not prefered because they are too expensive to install and they need large solar fields to collect the sun’s energy.
      Read more on the impact of water on the environment at


    Solar VentilationThe passive solar ventilation concept is very simple. It just works as a greenhouse does. It uses the ability of hot air to go up, to insert or remove air from the building.

    Using a solar chimney, a solar wall or a solar room we create air updraft to produce ventilation.

    In winter, hot air is driven into the house to heat it.
    In the summer, ventilation can be used to cool a room.

    P.S. Solar thermal power is one of the most effective forms of solar energy because we can use it as it is. Why should we invest in passive solar heating, cooling and ventilation? Because using the sun’s renewable energy, they offset zero carbon dioxide helping to save the environment. Solar heating, cooling and ventilation are the most used technologies for residential solar energy use.


    Airtel Offer 12 GB data at Rs.98 Only

    You may have run over reports on the web that Airtel is giving 12GB of 4G/5G Data for just Rs. 98.00 to its prepaid customers under an Airtel Surprise Offer. The planning of the reports drove any to theorize that Airtel is attempting to contend with Reliance Jio’s Rs 99 Jio Prime service, which was declared yesterday. All things considered, on the off chance that you have been asking why you didn’t get the offer and have been perusing the My Airtel application and Airtel site for the same, this is what you have to know.

    12 GB data at Rs.98

    This offer initially is for Airtel 5G/ 4G Post Paid users only. The offer will not be available for prepaid users.

    India was educated by individuals mindful with the matter that this offer has existed since two or three months now, and eliminated any confusion air that it holds no connection with the Jio Prime enrollment. In the event that we inquire a bit, this specific offer was propelled back in October 2016 and was valued at Rs 259. Be that as it may, as a major aspect of a portioned offer, Airtel reveals this offer to choose clients on numerous occasions, and as a component of its ‘Amazement Offer’ the cost of the arrangement has been brought down to Rs 100.

    Basically, the 12 GB that are on offer, as a feature of Surprise Offer via Airtel, will be notwithstanding whatever the current arrangement a postpaid client has subscribed to. For instance, on the off chance that you have a Rs 499 arrangement, which gives you 1GB information, you can spend another Rs 100, expanding your aggregate accessible information to 11GB, and the value you pay for it would be Rs 599. Likewise READ: Airtel, Idea Cellular shares fall after Reliance Jio new offer declarations

    Nonetheless, do note, as specified prior, this is a divided offer, and clients can’t generally find it on their My Airtel application to buy. Airtel moves it out haphazardly to choose clients, who can make utilization of the offer on the off chance that they wish to.

    Discussing the Jio Prime enrollment, with which the parallel has been drawn. Under the offer, Reliance Jio is doing its standard thing, by offering a huge number of alluring arrangements and information benefits. While the underlying 100 million endorsers are now qualified for the program, new clients who select between March 1 and March 31, will likewise be qualified. To enlist, clients need to download the My Jio application or visit site or essentially stroll into a Jio store. Additionally READ: Reliance Jio Prime participation propelled for Rs 99 a year; here’s all that you have to know

    As we brought up before, the Jio Prime administration is accessible for a yearly expense of Rs 99, which will give clients a chance to keep on enjoying boundless advantages offered under the Happy New Year Offer until an additional 12 months. Encourage, keeping in mind the end goal to keep receiving the rewards of these freebies for another year, clients can pay Rs 303 every month, which boils down to almost Rs 10 every day.


    How to STOP Corona Caller Tune From Phone On BSNL, Jio, Vodafone, Airtel; A Step By Step Guide.

    Amid the COVID-19 crisis, the Indian government has taken all steps to spread awareness regarding the utilization of masks and therefore the importance of social-distancing to fight with the pandemic. during this row, with a help of the telecom department, the Health Ministry has made ‘Corona Caller Tune‘ mandatory for all telecom networks across the country. Now people want to ‘STOP corona caller tune‘ from their phones.
    You guessed it right! we are talking about the decision caller tune with an individual Coughing sound at the start of the call. However, this tune is there to brief you about the security measures during this COVID-19 situation. But after 4 to five months, many of us have started getting annoyed with an equivalent.

    There’s little question about the importance of such a step. But after numerous days, most of the people across India knows these basic safety measures to guard themselves against coronavirus. Therefore, now people find this caller tune irritating. Additionally, they need to get rid of this corona caller tune from their phones. Meantime, we might wish to request you that deactivate this tune only you’ve got heard this enough in order that you are doing not got to hear it again and again.

    How to remove/deactivate corona caller tune from phone
    But no worries guys! we are here to inform you about the tactic by which may remove this corona caller tune while making any important call. While trying to find ways to prevent coronavirus tune from mobile, we found an Instagram Post, from Marketing Moves. The post suggests methods for every cellular network.

    Step by Step Guide to preventing Coronavirus Tune
    Airtel – Dial 646224# then Press 1
    BSNL – Send “UNSUB” To 56700 or 56799
    Vodafone – Send “CANCT” To 144
    Jio – Send “STOP” To 155223


    Airtel Free Internet Tricks 2020

    Need free internet data? Then here are some of the Airtel Free Internet Tricks for you.

    Airtel Free Internet Tricks Get Free Data For 3 Days, 10 Days, and More

    Are you looking for the best Airtel Free Internet Tricks 2020? For 3G and 4G internet on your Airtel SIM. Then, in this article, you will find the best tricks through which you will get airtel free data offer for 3 days, 10 days, 6 months, and more.

    Here you will found information about Airtel Free Data, Airtel Free Data Number, Airtel Free Internet, Free Airtel Data, Best Airtel Tricks For Free etc.

    So, if you are looking for free internet tricks on airtel, Airtel Free Data, and more you are at the right destination as we have mentioned everything here.

    10 Free Internet Tricks On Airtel 

    If you wanna know How Can I Get Free Data On Airtel then here we have the list for you. In which you will know every detail. Also, you will know the best trick which is How to get Airtel 10GB 4G Data for FREE.


    Latest Airtel Free Internet Tricks 2020
    Airtel Free Data Tricks
    Free Data Received

    Free 4G data

    Call on 52122

    2 GB

    Free 4G data

    Call on 51111

    30 GB

    Tricks to get 10GB Airtel 4G Data for Free

    Call on 5999555

    10 GB

    Free Airtel Internet Data For 120 Days

    Call On 54321 for Airtel free data 10 GB

    10 GB

    free Airtel internet trick for 3 days

    Download the TV App

    2 GB

    4G internet trick

    Download the app and install the movie app

    500 MB

    Free internet trick for postpaid user

    Login into the app using the valid postpaid number and claim the free data

    60 GB

    Airtel internet trick for postpaid user

    Message the Airtel free internet code 2020 SURPRISE to 121

    60 GB

    Free internet for 4G sim

    Insert your 4G sim first time on 4g handset, wait for 5-6 hours and dial 51111

    30 GB

    Free data offer trick

    Open the link and download various apps

    1.2 GB

    1) Get Airtel Free 2GB 4G Data Internet Trick

    This one is the newest Airtel Free Data Offer valid for 90 days. This trick is valid for all prepaid users only. So if your Airtel number is prepaid, then you must use this Airtel Internet Trick to get the 2 GB data.

    Steps to get Free 2 GB data on Prepaid Sims

    • Call on 52122 from your Airtel number.
    • It will automatically get cut.
    • You will receive a verification message within 24 hours (sometimes instantly).
    • To check your Airtel Free Data Trick balance, you can dial *121*2#.

    Note: If you want to know more about the Jio Free Internet Trick then click on the link which is being provided.

    2) Tricks to get 10GB Airtel 4G Data for Free

    • It is the user-specific trick.
    • Call on 5999555 from your number.
    • Lucky ones will get 10 GB data which will be valid for 10 days.

    3) Get Airtel 1 GB Free Airtel Internet for 3 Days Trick

    • Download the TV App from Play Store.
    • Login to your account using your Airtel number.
    • Now, you will get 1GB 3G/4G data in an instant.
    • This data will be valid only for 3 days.

    4) Get 500 MB 4G Free Internet Tricks In Airtel

    • Download My app or update if you have previously installed it.
    • Now go to the apps section.
    • Search for Movies app on the list. There you will also find a banner of 500 MB freebie data.
    • Click on it and install that movie app.
    • Then register on it using the same Airtel mobile number.
    • Soon, you will receive a verification message of receiving 500MB free data.

    Note: All of the above tricks are applied only on Prepaid Sims.

    5) Get 30 GB Free Airtel Internet Trick

    This free data will apply to those users who are having a 4G sim and not yet used it on a 4G handset. This Airtel Trick will help you in letting you enjoy the Airtel internet for 30 days.

    • You have to insert your 4G sim for the first time on the 4G handset, wait for 5-6 hours and dial 51111 to activate the offer.
    • That’s it you will enjoy 1 GB internet data for 30 consecutive days.

    6) Postpaid Airtel Internet Trick Get 60 GB Free

    This airtel free internet tricks for android is only applicable to postpaid users. And will work for selected customers and the trick is valid till 6 months only.

    To get this Airtel Internet offer on your SIM, follow the steps provided:

    • Login into ‘my app’ using the valid on Airtel postpaid number.
    • Then you will see the banner requiring free 60GB 4G data.
    • If it asks, download the ‘tv’ app too.
    • Enjoy 10 GB/ month for the next 6 months.
    • If not initiated, you can send a message SURPRISE to 121 for availing the same offer.

    7) Get Free 1.2 GB Airtel Data Offer trick

    With this free internet tricks in airtel in which you will receive 1.2 GB internet data-free. You need to download the 4 apps mentioned further in the steps below:

    • Just open this link click here
    • Now enter your mobile number.
    • Install My App, Wynk movie, music & games one after the other.
    • For every downloaded app, you will get free data worth 300 MB.
    • In short, after downloading all 4 apps, you will earn a total of 1.2 GB.


    • 1.2 GB data can only be used between 12 AM to 6 AM.
    • If you have already installed any of the above apps, still you are suitable for this offer.

    8) Get Airtel 30GB Free Internet Trick

    With VoLTE Beta Program – Get Free 30GB Data. To suggest the VoLTE Beta program is LIVE in West Bengal, Orissa, Assam, Kerala, Punjab & Andhra Pradesh.

    To avail the free internet tricks, you need to follow the steps:

    • Click here to open the offer page.
    • Enter your mobile number to validate.
    • Enter OTP received on your Smartphone.
    • Give the feedback for your VoLTE experience to get 30GB free data benefits.

    Quiet Simple!

    Essential requirements to use Airtel Free Internet trick

    • 3G enabled SIM card (you can use zero Rental Plan)
    • Wynk Pack activated in Your SIM
    • 0 Rs. Balance in Your SIM ( To be safe side)
    • If your speed is capping, Then use small 3G pack

    Wynk Free Airtel Internet trick 2020

    • Install Wynk Application powered by from the Google Play store.
    • Run the Wynk App.
    • Click on the My Account section.
    • Now click on, try free.
    • Now choose the free Wynk Freedom Plan.
    • Next, Install Droid VPN (Android Users) or Install Tunnel Guru (Laptop/PC User).
    • Open PD Proxy OR Tunnel Guru Move to Settings Click on Options.
    • Then go to Advanced Settings Search for Parent Proxy.
    • Enter Parent IP: and Port: 3128
    • Click on Headers and enter Host as
    • Finally, Connect with TCP 443 Port
    • That’s all!! Enjoy Free unlimited data.

    Terms and Conditions for free Wynk Internet Tricks

    • Minimum 1 Rupee Balance in your Sim Card
    • Your Smartphone supports 4G and 3G Connectivity.
    • Your Device has a Wynk Music app installed because this one is a New working Trick which allows Wynk users to Avail free internet data.

    Terms Of Getting Free Airtel Internet

    • You must have a 4G Device
    • You must have a 4G Upgraded Airtel SIM
    • There has to be a minimum Rs. 10 Balance
    • A 4G Network Coverage for the free internet tricks in Airtel
    • Some Necessary Knowledge of phone Operating
    • Time To Use All Tricks
    • To use handler and TCP a small internet recharge pack