@@BLADE-yf5mc Distance between the 2 green patches is constant. So we mounted the colour sensors such that they are in the middle of each patch.

@@Mannz-p5v 775 motor

Hi Lukas, Yes it was really great to exchange our learnings in Bordeaux! All the best to you too! We can probably meet in the next year Robocup :)

​@@aarravoltics4592 Are you still participating? Unfortunately, we are too old now, but will probably take part as volunteers next season!

@@evbrobocup next year, I'll participate from my university (TU/e) for Robo Soccer or robocup @ home. Yeah we are too old for the rescue line and maze, but we can participate in other leagues!

@@aarravoltics4592 Ah cool, good luck with that! I am sure you know that already, but the current RoboCup worlds are taking place in Eindhoven this weekend too

Max speed is 2400 RPM

The freewheel requires threads to be attached. There was already threads on the right side, and it was easy to make the threads longer. So it was actually easier to attach on the right side. In order to attach on the left, I would have to cut the threads myself, which is quite hard to do.

drive.google.com/drive/u/0/folders/17qvcRFZtBAsBPySQvEWh2MLAfG78AKCW

drive.google.com/drive/u/0/folders/17qvcRFZtBAsBPySQvEWh2MLAfG78AKCW

775 DC motor

And pwm switch off which rating ?

@@kaushalkumbhar122 it is a 10 amp DPDT switch robu.in/product/10a-250v-dpdt-on-off-on-rocker-switch/

QRE1113 IR sensor by sparkfun for line follow TCS34725 colour sensor for green patch

How did you get the reflective tape working? Im using the same colour sensors but im unable to get a reliable readings for reflective tape. What integration time did you use for the colour sensors?

@@BLADE-yf5mc we used the IR sensors itself to detect the silver strip. But it wasn't very accurate. I advise you to use another sensor for the silver strip. 2.4ms integration time

@@aarravoltics4592 so 2 colour sensors for green patch and another one for silver strip?

@@BLADE-yf5mcyes, thats right. You can mount the sensor at a slight angle so that it can detect the silver better.

We used a raspberry Pi V2 camera (because it was inexpensive and has good resolution) We used tensorflow lite for the ML model

Also why did you use two omni wheels. The robot won’t have the omni directional movement

My team is considering using the ESP cam and Arduino mega. Do you think we’ll run into any problems?

@@BLADE-yf5mc omnidirectional wheels because we wanted the centre of rotation of the robot to be in the front. So we had to put normal wheels in the front and Omni wheels in the back. This is so that the back wheels also contribute to traction (especially on ramp) and it can freely move sideways to allow for centre of rotation to be in the front. But I would recommend you to use 4 similar wheels with good traction in the front-back movement but which can slide sideways when turning. Eg - 3d printed wheel hub with a TPU tyre

@@BLADE-yf5mc you can use the espcam but from our testing, we found out that it's video processing capabilities are very less (frame rate of the video is very less). So if you plan to implement ML, espcam is not a suitable choice. It's best to use a raspberry Pi with a pi camera. Then you can serial connect the pi to your Arduino. Even though we used a pi, we got only 2.5 frames per second... You can try to use different models and choose the one which has the highest frame rate and accuracy.

You can use a brushless motor. It will actually be more efficient than a brushed motor. But it is more expensive and it produces 3 phase AC which needs to be rectified into DC.

The 3d printed part holds the bearing tightly and the pvc pipes constrain it from moving side to side

Sure, you can contact me at [email protected]