Instarr Enterprises EnTC Projects

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Electronic Grain Dispenser Synopsis

Need of the project

In India in difficult times of covid-19 government of india announced the free ration food distribution for 9 months. This food supply of grains of wheat and rice is distributed at Government operated Ration shops all over india. The distribution is done conventional weighing system of fixed weight in bowls and pouring in customer bags. For this a labour has to lift 50 kg bags and using smaller bowls put the grains in bigger bowl for weighing required amount of grains, after weighing is done, grain are poured into customer bags. This process is physical and requires human effort which is tiresome and labour intensive. This project helps in this

Principle of Operation

A funnel of 10 kg will be having a spindle inside to stir the grains in the funnel, as the spindle spins inside the funnel the grains will start pouring out from the funnel. The grains are collected into bowl and the bowl is placed on electronic weighing scale below funnel. The weighing scale will trigger the spindle to stop when a preset weight of grains are in bowl/customerbag. Stopping of the spindle will stop pouring of the grains and desired amount of grains are automatically distributed to the customer without labor intensive distribution of the grains

This avoids person to person contact and provides automated process to distribute

Computation Part

Spining == true if Bowlweight < 5kg

Spinning == false if Bowlweight >= 5kg

Components Used

  • Funnel 10 kg
  • spindle with motor connection
  • motor and weigh scale connected to printed ciruit board (ardiuno /raspberry) anything that is feasible

Applications

  • Rations shops
  • Grocery shops
  • Cement factories
  • Chemical shops
  • Restaurants

Electronic Vault

Need of the Project

A vault is an important aspect everyone personal life to protect and secure personal belongings. Conventional methods are to put a mechanical lock which has a key to the latch. We need to keep the key with us always and is always required to open the lock. however to automate we use few electronic components to build vault of our own and which can be opened by a 4 digit password

Principle of Operation

A latch is created and attached to motor which is mounted the inside wall of the door of the vault. A numeric keypad is mounted on the outside of door of the vault. When a correct password is inputed on the keypad the motor spins the latch inside the door and door can be opened. This is small appliction to create the vault but a valid project to showcase motor connection skills , ardiuno like pcb programming and keypad connection and operation

Computation Part

Keypad input == password => Move the motor spindle to 180 degree and open the door

Keypad input != password => Door can not be opened => latch present

Components

  • Numeric keypad
  • motor
  • Vault box
  • ardiuno like pcb

Applications

  • Banks for keeping important documents
  • Houses for securing personal belongings
  • Restaurants can be used in refrigerators

Ardiuno Camera based Monitoring Device

Need of the Project

Principle of Operation

Computation Part

Components

Applications

golang errors

Posted on | By Instarr Manager | No comments

go: finding module for package github.org/companyname/go-tools/filesystem
go: finding module for package github.org/companyname/go-tools/secure
go: downloading github.org/companyname/go-tools v0.0.0-20210927040446-cd2beea08150
/go/pkg/mod/github.org/companyname/[email protected]/log.go:9:2: github.org/companyname/[email protected]: verifying module: github.org/companyname/[email protected]: reading https://sum.golang.org/lookup/github.org/companyname/[email protected]: 410 Gone
server response:
not found: github.org/companyname/[email protected]: reading https://api.github.org/2.0/repositories/companyname/go-tools?fields=scm: 403 Forbidden
server response: Access denied. You must have write or admin access.
/go/pkg/mod/github.org/companyname/[email protected]/log.go:10:2: github.org/companyname/[email protected]: verifying module: github.org/companyname/[email protected]: reading https://sum.golang.org/lookup/github.org/companyname/[email protected]: 410 Gone
server response:
not found: github.org/companyname/[email protected]: reading https://api.github.org/2.0/repositories/companyname/go-tools?fields=scm: 403 Forbidden
server response: Access denied. You must have write or admin access.

    Solution 
    touch ~/.netrc
    chmod 600 ~/.netrc
    machine github.org login [email protected] password somepassword
    export GOPRIVATE=github.org/companyname/*

Javascript keyboard operation

Posted on | By Instarr Manager

var keyboardfocuskey;
var keylist=[1,2,3,4,5];

var currentFocusedKey=1;
//input fragment

function findElementWithKey( keyboardfocuskey ){

return element ;

}

function focusOnElement( element ){

}

function onEnterEvent(){

newFocusedKey= currentFocusedKey + 1;

if(newFocusedKey == keylist.length){
focusOnElement( findElementWithKey( newFocusedKey ) );
}else if( newFocusedKey == keylist.length ){
focusOnElement( findElementWithKey( newFocusedKey ) );
}else{
newFocusedKey = 1;
focusOnElement( findElementWithKey( newFocusedKey ) );
}

}

functoin onShiftEnterEvent(){

newFocusedKey = currentFocusedKey – 1;

focusOnElement( findElementWithKey( newFocusedKey ) );

}

SSH PORT FORWARDING TUNNELLING

Posted on | By Instarr Manager | No comments

USED FOR MYSQL

https://stackoverflow.com/questions/25495364/laravel-mysql-db-connection-with-ssh/41698783#41698783

ssh -i id_rsa -N -L 13306:REMOTE_DATABASE_HOST:3306 pshridhar@INTERMEDIATE_SERVER_IP

13306 port will be mapped to remote server port 3306

User 13306 to connect to server 3306 remote port

User localhost or 127.0.0.1 as db host name

pshridhar is user of remote intermediate server , it can be removed if we can directly connect to server

“/Applications/MySQLWorkbench.app/Contents/MacOS/mysql” “-uDATABASE_USER” “-h127.0.0.1” -P13307 –pDBPASSWORD DATABASENAME

Woocommerce 5.5 unable to create order

Posted on | By Instarr Manager

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Support » Plugin: WooCommerce » Unable to create order

Unable to create order

  • ResolvedSteveo123 (@steveo123)
    2 years, 11 months agoWe upgraded our dev site to Woocommerce 3.4.4. Since then when we try sending a test order through we are getting “Unable to create order” on the checkout page after we enter the billing information. I am not seeing anything in the logs. Any ideas?The page I need help with: [log in to see the link]

Viewing 13 replies – 1 through 13 (of 13 total)

  • Thread StarterSteveo123 (@steveo123)2 years, 11 months agoI also just noticed that for my test order I am not able to delete the item from my shopping cart.pierremouteau (@pierremouteau)2 years, 11 months agoSame problem here on a live shop, any news on the problem ?Thread StarterSteveo123 (@steveo123)2 years, 11 months agoI found some issues with my database. Auto increment was not set on some of the table primary keys. Now I’m getting a different error (internal server error). Still working on that one.Plugin SupportJohn Coy a11n (@johndcoy)Automattic Happiness Engineer2 years, 11 months agoHi @steveo123This isn’t something I’ve been ablet to replicate.After viewing your dev site’s checkout process I see that the console shows a few JS errors. Typically issues like this are caused by a theme or plugin conflict. try switching back to a default theme like Twenty Seventeen and disable all plugins except for WooCommerce to see if this resolves the issue.If so, then re-enable each one at a time until you find the one that’s causing the conflict.Plugin SupportLuminus Alabi a11n (@luminus)Automattic Happiness Engineer2 years, 11 months ago@steveo123,We haven’t heard back from you in a while, so I’m going to mark this as resolved – if you have any further questions, you can start a new thread.yawbii (@yawbii)2 years, 6 months agoHi I just restored my old backup website to a new WordPress site and everything is working fine except order is not working. When I test order I keep getting UNABLE TO CREATE ORDER.
    How do I fix it?
    http://www.m6network.com is the the websitejohnpaulbyrne (@johnpaulbyrne)2 years, 5 months agoThought I would share the love and post the real solution to this problem.
    The problem manifests when WooCommerce attempts to save the shop_order post type to wp_posts table.
    When someone hits checkout, the woo data store attempts to save the order as a post:/wp-content/plugins/woocommerce/includes/data-stores/abstract-wc-order-data-store-cpt.php
    at public function create( &$order ) { line 56This is the code that inserts the order:
    $id = wp_insert_post(
    apply_filters(
    ‘woocommerce_new_order_data’,
    array(
    ‘post_date’ => gmdate( ‘Y-m-d H:i:s’, $order->get_date_created( ‘edit’ )->getOffsetTimestamp() ),
    ‘post_date_gmt’ => gmdate( ‘Y-m-d H:i:s’, $order->get_date_created( ‘edit’ )->getTimestamp() ),
    ‘post_type’ => $order->get_type( ‘edit’ ),
    ‘post_status’ => ‘wc-‘ . ( $order->get_status( ‘edit’ ) ? $order->get_status( ‘edit’ ) : apply_filters( ‘woocommerce_default_order_status’, ‘pending’ ) ),
    ‘ping_status’ => ‘closed’,
    ‘post_author’ => 1,
    ‘post_title’ => $this->get_post_title(),
    ‘post_password’ => wc_generate_order_key(),
    ‘post_parent’ => $order->get_parent_id( ‘edit’ ),
    ‘post_excerpt’ => $this->get_post_excerpt( $order ),
    )
    ), true
    );Now you will notice that the insert creates a value in post_password field using wc_generate_order_key()
    If you look in your database you will notice that the post_password table is a varchar with max length of 20 chars. I found that wc_generate_order_key() was generating a password LONGER than 20 chars and therefore the insert was failing which manifests further up the chain as “Unable to create order”Internally wc_generate_order_key() does this:
    function wc_generate_order_key() {
    return ‘wc_’ . apply_filters( ‘woocommerce_generate_order_key’, ‘order_’ . wp_generate_password( 13, false ) );
    }if you notice that wp_generate_password’s first parameter is the length of the password which in this case is 13
    the password is concatenated with “wc_” (length 3) and “order_” (length 6) so 13+3+6 = 22 chars of lengthSo this got me thinking why would Woo write this code?
    Well it turns out that my wordpress version on the affected site was 4.7.12 ( we had ignored the updates to v5 as it as a heavy production site and we hadnt yet tested Gutenberg)
    I checked another site that was already at v5 of wordpress and sure enough the post_password field in wp_posts table is varchar(255) so later version of wordpress > 4.7.12 must have increased this field length:So the solution is:
    1. Update to latest WP version
    2. If you can update to latest WP Version because you havent tested it yet then go into PhpMyAdmin for your MySql database. You can find your Database name from wp-config.php
    Click on wp_posts or whatever prefix your posts table is using and click on “Structure” tab and modify the length of the post_password field to varchar(255)This drove me crazy and I see no solution anywhere on the internet for this.
    Hope this helps someone have a more productive day than I did lol
    ? ?jorgerueda (@jorgerueda)2 years, 5 months agoThanks a lot!!! I don’t know what went wrong when I updated to WP 5, but thanks to you I just corrected the problem. THANKS THANKS a thousend times! I just used phpmyadmin to change the post_password field in wp_posts table as varchar(255) I would have taken me many hours to find outtecladigital (@tecladigital)2 years, 4 months agoThank you johnpaulbyrne2 months ago I had this problem in one of my client’s site. I lose some days of work and at the end I had to rebuild all site.Now I had this problem in another site, and in 5 minutes off “Googling”, I found your message here. And I took just one more minute to solve that bug.Thank you very much for sharing your solution. You save my day ?rukhsar01 (@rukhsar01)2 years, 4 months agoI am facing the same issue with my website from last 5-6 days. I came across this page and did the thing but in my database the post_password is already set to varchar(255).
    Please help me in resolving this issue.jesperj (@jesperj)2 years, 3 months agoI’m having the same issue and I’m running the latest WP so I would assume that the lenght is sufficient. It all started some days ago and I can’t fix it. Store is not functioning as it should.I’m getting a red feild at the top saying “Cant place order” when I try to call on my payment service and finalize the order. Very frustrating.jesperj (@jesperj)2 years, 3 months agoSo I had the online service look into the database and the field was not uppdated. They did that change and now it works fine.One thousand thanks for the heads up!chodos (@chodos)2 years, 1 month agoThank you @johnpaulbyrne
    It worked for me too!

Viewing 13 replies – 1 through 13 (of 13 total)

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