# Labs user application **URL:** \ **Category:** Questions about Thunkable X\ **Tags:** help\ **Created:** [December 28, 2024, 8:18pm UTC](https://community.thunkable.com/t/labs-user-application/3438993 "2024-12-28T20:18:39Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![sefaozmen84261l](https://avatars.discourse-cdn.com/v4/letter/s/fbc32d/32.png) [@sefaozmen84261l](https://community.thunkable.com/u/sefaozmen84261l)\ **Post date:** [December 28, 2024, 8:18pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/1 "2024-12-28T20:18:39Z")
Hello everyone. I want to develop an application for a school laboratory. There are 20 computers in the laboratory and I created barcodes for them such as “pc-01”, “pc-02”… I recorded each student sitting on these computers in a google sheet (more than one student sitting on a computer). I need help with the application that will display the list of these students on the screen from the database according to the barcode query. ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [December 28, 2024, 11:15pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/2 "2024-12-28T23:15:28Z")
Welcome to Thunkable! What you are asking for involves many separate small steps. It’s not really possible to list them all for you – plus, that would take someone a lot of time. Here’s what I recommend when starting on an app: 1. **Create an algorithm.** LLMs like ChatGPT are great at helping with this. The algorithm should be someone detailed so that you have an idea of concrete steps to take next. 2. **Start to create the first few steps in Thunkable. If you get stuck, check out the documentation.** Much of it has good tutorial videos such as [here](https://docs.thunkable.com/getting-started/data-sources/data-sources). 3. **If something doesn’t work and you can’t figure it out, post as many details as you can** including screenshots and a link to your project and ask a _specific question_ about a _specific step_ in your algorithm. ---
**Author:** ![sefaozmen84261l](https://avatars.discourse-cdn.com/v4/letter/s/fbc32d/32.png) [@sefaozmen84261l](https://community.thunkable.com/u/sefaozmen84261l)\ **Post date:** [December 29, 2024, 2:56pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/3 "2024-12-29T14:56:27Z")
![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/e/9/e93be3a2f4752df6070ae24a303378575c1efca8.png) I have a table like the one in the image. What I want is that when the barcode is scanned in the application (eg: pc-lab-01), the people whose data in the ogrPc column is “pc-lab-01” should appear on the screen. ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [December 29, 2024, 7:24pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/4 "2024-12-29T19:24:20Z")
I understand. What have you tried and what is your question? ---
**Author:** ![sefaozmen84261l](https://avatars.discourse-cdn.com/v4/letter/s/fbc32d/32.png) [@sefaozmen84261l](https://community.thunkable.com/u/sefaozmen84261l)\ **Post date:** [December 29, 2024, 8:17pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/5 "2024-12-29T20:17:42Z")
i can get all datas from google sheet in a list. but i cant filter datas by barcode. i need this filter blocks. ---
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [December 30, 2024, 12:18am UTC](https://community.thunkable.com/t/labs-user-application/3438993/6 "2024-12-30T00:18:04Z")
I’m not sure i understood your question, but when i have to deal with barcodes i always suggest [quickchart.io](http://quickchart.io) It can create a barcode/qrcode with the value you want and, once scanned, you can easily identify your value or row in google sheet. for example if you create a QR Code with value “pc-lab-01” (something like this [qr (150×150)](https://quickchart.io/qr?text=pc-lab-01)) You can then modify or take action based on the different value with an if/else statement. something like: if SCANNED\_VALUE == pc-lab-01: action that you need Still not sure if this will help you, but it was worth a try Good luck! ---
**Author:** ![robert.newton.442rpp](https://avatars.discourse-cdn.com/v4/letter/r/a87d85/32.png) [@robert.newton.442rpp](https://community.thunkable.com/u/robert.newton.442rpp)\ **Post date:** [January 5, 2025, 2:19pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/7 "2025-01-05T14:19:08Z")
In bar code place uniqe value for each computer. Place same values in sheet. When user scan barcode, compare value from barcode with values in sheets and assign user to computer. ---
**Author:** ![StephanieKing](https://avatars.discourse-cdn.com/v4/letter/s/e56c9b/32.png) [@StephanieKing](https://community.thunkable.com/u/StephanieKing)\ **Post date:** [January 17, 2025, 1:44pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/8 "2025-01-17T13:44:01Z")
Thank you so much, you made my day. > **.** > > To develop your application, you can use Google Sheets API to pull student data and display it based on the barcode input. You’ll need a backend (like Python or Node.js) to query the Google Sheet and return results. The frontend can include a simple form to input the barcode and show the corresponding student list. Narrative essays can be challenging, especially when you’re asked to tell a personal story in a meaningful way. I turned to Academized [Academized](https://academized.com/buy-narrative-essay) for help with my narrative essay, and the service was fantastic. The essay was well-written, emotionally engaging, and easy to read. The writer was able to make my story come to life, and I received positive feedback from my professor. I’ll definitely use this service again for future writing assignments. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/f/0f59f292712368bce16ff80133ae10de8a6f27e8.png) [@system](https://community.thunkable.com/u/system)\ **Post date:** [April 17, 2025, 1:44pm UTC](https://community.thunkable.com/t/labs-user-application/3438993/9 "2025-04-17T13:44:48Z")
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