Turn Time Calibration

Roversa turns by spinning for a set amount of time. This program helps you find how many milliseconds it takes to spin one full circle (360°). Once Roversa knows that, it can turn any angle accurately.

Step 1 — Load the program

Download this code onto your Roversa.

Step 2 - Spin and watch

Put a sticker or mark on the floor lined up with the front of Roversa, so you can see when it has spun back to the start.

• Press Play button to spin Roversa in place, and watch how far it goes.

Step 3 - Adjust the time

• Did Roversa stop before completing a full circle? Press the Right turn arrow button to add time.

• Did Roversa spin more than a full circle? Press the Left turn arrow to take time away.

Each press changes the time by 20 ms - you'll hear a rising sound when it goes up and a falling sound when it goes down.

Step 4 - Test again

Press Play button and repeat Steps 2–3 until Roversa spins exactly one full circle, ending up pointed the same way it started.

Step 5 - Read your number

Press Menu button to show the milliseconds on the LED screen. 

Step 6 - Double-check (optional)

Press Stop button to watch Roversa turn 90°, pause, then turn 180° using your number. If those angles look right, your calibration is good.