I need help with my project !

Hello everyone,
I am working on a Robotics project and I need some guidance. My project is a medical delivery robot that uses two Arduino UNO boards communicating wirelessly through the NRF24L01 modules. The robot is a 2-wheel smart car that follows a line using TCRT5000 digital tracking modules.

The part I need help with is this:

How can I make the car reach a specific destination or room on the track?
Should I use an additional sensor or external component to mark the destination, or can this be achieved only through the code by sensor readings, or tracking patterns?

I need it to stop at a defined location (a specific “room”) and then later return to another one.

Any advice or examples would be very helpful.
Thank you.

Hi, you should go through the guide below to attract the most comprehensive help. It's the culture here and it's not just to make you follow rules for the sake of following rules. The link even explains that in detail so without further ado:

The TCRT5000 sensor just detects light and dark, which is all you need to follow a line.

To identify a specific location you need more information, like accurate distance measurements along the track, or some sort of unique marker.

The inexpensive, Arduino compatible Pixy2 camera is easy to use and recognizes colored blobs, two-color identifiers, and even "road signs".

Is this a real application or a student project.

Check this link: Autonomous robot for 24/7 medication delivery in hospitals unveiled

There are dozens of methods that an autonomous robot can determine its precise location, and each will have various pros and cons for your specific application.

The crux of your project is really to identify the best method that fits your application (and all the constraints that only you would/should know).

Thank you so much for your help!I really appreciate it. I'll try what you suggested.

It's a student project. I'll check the link you shared.Thank you for your reply!

You are welcome and let us know how it works out.

HI, @louly
Welcome to the forum.

As @jremington has suggested.

You could include in your robot a colour sensor, each stopping station has a different colour to identify where it is and which one.

This could be an extra line on the floor, just at the station, that lines up with the sensor on the robot.

Tom.... :smiley: :+1: :coffee: :australia:

Thank you so much, Tom!
I will try adding a color sensor and marking each station with a different color so the robot can recognize where to stop. I really appreciate the suggestion! :grinning_face_with_smiling_eyes: