Build a Heart LED Display with Circuit Blox

Quick answer

Use the Circuit Blox LED Heart Block from E-Blox to build a simple, glowing heart display. This guide walks you through the steps for a quick beginner-friendly project.

Step-by-step build guide

1. Gather your parts: You will need a Circuit Blox power base (such as the 300 or 600 series), the LED Heart Block, and two connector blocks if the heart does not reach the base directly. Make sure the power base has fresh batteries or is connected to a USB power source before starting.
2. Snap the LED Heart Block onto the base: Align the pins on the bottom of the LED Heart Block with the holes on the power base and press down firmly until it clicks into place. If you are using connector blocks, attach them first to extend the reach. A common mistake is pressing at an angle — apply even pressure straight down to avoid bending the pins.
3. Turn on the power: Slide the power switch on the base to the ON position. The LED heart should light up immediately. If it does not, check that all blocks are fully seated and the batteries are installed correctly. If the LED flickers or stays off, remove and reseat the heart block — poor contact is the usual cause.
4. Experiment with placement: Try moving the LED Heart Block to different positions on the base or adding spacer blocks to raise it. You can also combine it with other Circuit Blox blocks like a sound module for a multi-sensory display. Do not exceed the maximum voltage rating of the heart block (check your set’s manual) — stacking too many powered blocks may dim the LED.

Product facts

• Circuit Blox™ - LED Heart Block - E-Blox®: The Circuit Blox LED Heart Block from E-Blox is a single-piece block featuring an LED heart design, intended for use with Circuit Blox building sets. You do not need to solder or connect wires — just snap the block onto a compatible base and power it to create a glowing heart.