Grove V2 circular 24-LED module

Quick Answer: The Grove V2 circular 24-LED module is a ring-shaped Grove board carrying 24 LEDs arranged in a circle. Each LED can be controlled from code, so students use the ring as a dial: a clock face, a gauge, a countdown or a spinning animation driven by a microcontroller.

Why a Ring of 24 LEDs Is Useful

Twenty-four positions divide a circle neatly: neighbouring LEDs sit 15 degrees apart, a quarter-turn is six LEDs and a full day can be shown one LED per hour. That makes the ring a natural display for anything circular, such as a compass heading, the angle of a servo, the second hand of a timer or a volume setting. Students have to convert a value into a position around the ring, which is practical work with division and remainders.

Grove circular LED modules of this kind are driven over a Grove cable using a library or block extension, with each LED switched or dimmed individually. V2 in the name marks a revised version of the board, so example code should be matched to that version. Whether the LEDs are single-colour or full-colour RGB is not stated in the title; confirm this, since it decides which colour effects are possible.

Because this ring connects through the Grove system, it plugs into the same shields as Grove sensors, whereas the 24 LED RGB ring is listed for the micro:bit. Choose the version that matches the boards already in your lab.

Applications

• LED clock or timer face showing hours, minutes or seconds
• Circular gauge showing a sensor reading or knob position
• Compass display pointing north from a magnetometer reading
• Loading spinners and light animations for coding practice

Specifications

Care & Handling

• Keep the brightness moderate in code; many LEDs lit at once draw more current and are uncomfortable to look at closely.
• Handle the ring by its edges and avoid flexing the board.
• Store it flat in an anti-static bag.

Why Choose LabEquip

Teachers use LED rings once students are ready for displays that show position rather than text. The module sits in the LabEquip STEM kits range. Send your board type and quantities through the contact page so the ring and its library match your lab.

Frequently Asked Questions

How do I show a value on a 24-LED ring?

Scale the value to a number from 0 to 24 and light that many LEDs in order, or light only the LED at that position to make a pointer. For angles, divide the angle by 15 to find the LED number.

Can the ring show a clock?

Yes. With 24 positions, one LED per hour shows a full day, while for minutes and seconds each LED stands for 2.5 units, so the program rounds to the nearest LED. A real-time clock module or the board’s timer supplies the time.

What does V2 mean in the name?

It indicates the second version of the Grove circular LED board. Revised boards can use different driver chips or pin arrangements, so use the example code and library written for the V2 version.

Does the ring draw a lot of power?

Each lit LED draws current, so the total rises with the number of LEDs on and their brightness. Most classroom animations light only a few LEDs at a time. For full-brightness effects, check that the host board’s supply can provide enough current.

Is this module the same as the 24 LED RGB ring for micro:bit?

Both have 24 LEDs in a circle, but this one uses the Grove connector system, while the other is listed for the micro:bit. The LED type and code library can differ, so choose according to the boards your students already use.

What coding concepts does the ring teach?

It teaches loops for stepping around the ring, arrays for storing patterns, the modulo operation for wrapping from the last LED back to the first, and mapping values to positions. These ideas transfer directly to larger LED displays.

Last Updated: September 2026