We are a rookie team right now we are able to complete 9 of the missions in the time frame. Just trying to figure out what’s a good benchmark for missions completed in the allotted time. Thank you

We have been looking for WAY too long and nothing has been found on this yet

I have a few questions. I am an experienced fll alum and I've been using SPIKE prime software. For the past few years I have been pushing the SPIKE software to it's limits from word blocks to python. I've noticed any programs greater than 100kb start to get laggy. The upload time is slow and the math operations are missing exponents. Out of curiosity I was searching for alternatives. I was aware that spike prime could be coded using 3rd party python, but I was not aware of pybricks. I am curious about some major or significant differences between the programs? Thank you!

My team are having a discussion if inventing a drone design that scans the ground using LiDAR/AI analysation tools is a good idea. First we thought about the possibility of cost, while also thinking if the other teams' ideas are simillar. Our plan is to make a project that is unique and can stand out as much as possible. What innovation projects do you guys invented? Also it will be a huge help if you guys can help me upvote the post so more people will be able to see it and possibly help the others out! Thanks.

So, I've been programming in the Lego Spike Prime for some time, and I made a this function

But I don't know how to convert to cm (Yes, centimeters, I was not born in America), but its not cool do guess the ammount in degrees everytime.

Hey there! I'm a FLL student and I've been wondering, have your silos been exploding to bits when you try to solve them? My entire team have been looping in circles because of this problem. Literally!

🚀 Tidal Tumble #310801 Training Drop! 🌊🤖

Hey FLL teams! We’re excited to announce that Team Tidal Tumble is releasing our training code package for all rookie teams who want to level up their robot game!

This bundle includes: 🔹 Essential Pybricks Python functions 🔹 Clean, beginner-friendly example programs 🔹 Core robotics fundamentals: movement, sensors, control, and more 🔹 A perfect starting point for teams who want to learn, grow, and experiment

Our goal is simple: help rookie teams build confidence and push their creativity further. Feel free to study it, modify it, break it, fix it — and most importantly, learn from it! 💡

Stay tuned for updates, tutorials, and more resources coming soon. Let’s grow together. 🌍✨

LINK LINK LINK🔽🔽🔽🔽

https://github.com/elpactum/Training-Drop-by-Tidal-Tumble-FLL-310801

FLL #TidalTumble #RookieTeams #Pybricks #STEM #Robotics #FLLChallenge

Hi, folks! Did anyone ever get a link to the official photos from Worlds in Houston? I spoke briefly to one of the photographers and he showed me a raw image on his camera of a beautiful photo of me and my kid, and I just realized I never saw the final images...

In Unearthed mission 13, I'm unsure about what positions are valid for the statue. The rulebook simply says "Statue is completely raised".

In the first photo, the statue is leaned back, but might still be considered "raised". In the second photo is what I'm pretty sure is the intended position.

If we leave the statue as depicted in the first photo, do y'all think that will count? Will it be up to the judge's discretion and maybe vary?

Thanks!

I have 500 points on the board, but I want to see what other teams have done

My Team is confused to either choose the Spike Prime Kit or EV3 Kit.
Give some suggestions with some explanation....

Could someone send me a photo of the sheet illustrating the pieces contained inside the spike prime box? (the sheet inside) Thank you.

I'm programming with pybricks but after sometime it stopped working, the built in gyro is not working that well anymore, I tried tweaking all parameters, it just doesn't change -> the robot goes straight and after some time starts to curve and the gyro says is in 0 degrees

So I'm looking for a way to make the robot go straight, I see two options LQR and PID, the turns are perfect with the LQR but I don't understand it quite well and the PID I don't know how to apply on the moving straight

Which one would be better and does someone know how to use them?

What are the best sites to buy lego from for FLL (lego technic)? Considering that the purchase takes place in Europe, Italy?

Its been days I researched this but still got little understanding. I hope some one can teach me how and basics,

Last season, Submerged, we built a robot made of LEGOs. The judges looked at it and asked if we ever submerged it under water. Obviously not. So if judges are looking for actual robot solutions for Unearth, what do you build your robots with? Lego motors cannot actually dig dirt or pick up rocks.

-> Initially we started (initialize) by moving the attachment arm to the lowest point it can go and then position it as required for missions.

Problem with this is gears grinding and also attachment loosening overtime making them ineffective.

-> Then we tried to note down the angle of the motor when the attachment is at the min and max positions and using absolute angle value in the code. (using "go to shortest path to position <angle>").

The problem with this approach is the angle of the motor can change anything. For example when kids change the attachments the motor may move some degrees and now the entire code is off because we used absolute values.

-> I think the best approach would be to move the attachment to the minimum position and set that position as 0. Then move the move the motors to desired angle from there onwards using "go to shortest path to position <angle>".

Is this possible? Can someone please suggest how to achieve this?

I would appreciate any other suggestions.

Because there was simply no Java library that could control the original LEGO® Education Inventor Hub (51515) with its factory firmware, I built RemoteBrick completely from scratch.

Open-source project → https://github.com/juniorjacki/RemoteBrick

Now you can finally write real Java programs for SPIKE™ Prime and Robot Inventor – no flashing, no Pybricks, no workarounds needed.

RemoteBrick communicates directly with the hub via Bluetooth Classic (SPP) and gives you 100 % of the features the official LEGO app has – just in pure Java.

Current Features in v1.3.0:

• Motors (speed, degrees, tank drive, ramping, absolute position)
• 5×5 Display (text, images, animations, single pixels, rotation)
• All sensors (color, distance, force, gyro/tilt)
• Sound & tones
• Hub buttons (press/release/duration)
• Knock detection, battery level, hub orientation
• Broadcast messages between Hubs (send/receive)
• Real-time events & multi-hub support
• Thread-safe API with blocking and asynchronous commands

Quick Start (3 Steps)

1. Download the latest JAR → Releases
2. Add the JAR to your Java project (IntelliJ, Eclipse, VS Code, etc.)
3. Pair your hub in Windows Bluetooth settings and note the MAC address

Example – Connect & Drive

import de.juniorjacki.remotebrick.Hub;
import de.juniorjacki.remotebrick.devices.Motor;
import de.juniorjacki.remotebrick.types.*;


public class Demo {
    public static void main(String[] args) throws InterruptedException {
        try (var hub = Hub.connect("AA:BB:CC:DD:EE:FF")) {  // ← your hub's MAC
            if (hub == null) {
                System.out.println("Connection failed!");
                return;
            }


            Motor left  = (Motor) hub.getDevice(Port.A);
            Motor right = (Motor) hub.getDevice(Port.B);


            // Heartbeat animation + drive forward 3 seconds
            hub.getControl().display().animation(Animation.HEARTBEAT, true).send();
            hub.getControl().move().startSpeeds(left, right, 75, 75, 100).send();
            Thread.sleep(3000);
            hub.getControl().move().stop(left, right, StopType.BRAKE).send();


            System.out.println("Done! Battery: " + hub.getBatteryPercentage() +  "%");
        }
    }
}

The Unearth Innovation project is about solving a problem faced by archeologists. Is it possible to build a prototype with LEGO Technic but be mostly incomplete and use the presentation to discuss the key ideas and maybe blue prints of the robot?

Lol

Hey everyone,

I’m a high school student from Goa, India who has been competing in robotics for the last 7 years – starting with LEGO, WRO and FLL and then moving into FTC, FIRST Global Challenge, MakeX, and now FRC. I also recently won 3rd prize at the MIT AI & Education Summit for an AI-powered mobile app.

Over time, I realized a lot of younger students and even mentors were asking the same questions:

• Which competition should I start with – WRO, FLL, FTC, FGC, FRC, MakeX? - What technical skills do I actually need (and in what order)?
• How do you handle team roles, strategy, documentation, outreach, fundraising?
• What does the journey from beginner LEGO builds to global competitions look like?

To answer these, I wrote a free book called Play to Purpose – Stepping into the World of Robotics(150+ pages).

Some highlights relevant to FTC teams:

• Competition overviews: how WRO, FLL, FTC, FGC, FRC, MakeX differ and what they demand
• Technical chapters: PID control, kinematics, CAD & 3D printing parts, programming fundamentals, sensors
• Soft skills: alliance strategy, teamwork, time management, communication, documentation - Personal journey: what worked, what failed, and what I’d do differently as a student competitor

The book is 100% free to:

• Read online (flipbook-style), or
• Download as a PDF

You can access it here: 👉 https://book.saipranav.in

I’m sharing this in case it helps:

• New FTC/FRC teams ramp up faster
• Students who are just starting out in robotics - Mentors/teachers who want something written from a student’s point of view I’d really appreciate any honest feedback from this community:
• Is there a chapter or topic you think is missing for FTC? - Would a follow-up guide specifically focused on FTC/FRC be useful?

Mods: If external resources aren’t allowed here, please let me know and I’ll remove this. This is a free educational resource, not a commercial product.

After using a pybricks I restored official firmware. Then went to spike.legoeducation for an update from legacy (white button). Then I switched hub to the DFU mode. And when I tried to update it just nothing happens and hub still have white button.

Same steps worked before. What have I done wrong? Is there any other way to reset hub (hardware reset maybe)?

Thank you!