You could wire a handful of tiny servo‑motors into a ring around the sculpture’s core, all controlled by a microcontroller that reads a heartbeat‑like sine wave from a simple oscillator. The servos twitch slowly, giving a pulse, while a thin sheet of flexible aluminum acting as a resonator inside the frame turns those tiny jolts into a low‑pitched hum. Then drop a few small vibration motors in the corners so that when a user touches the surface, the servos lock into a slightly different phase, making the whole thing sway and “breathe” like a digital heart. Just remember to keep the gear ratios low‑speed; otherwise you’ll end up with a buzzing robot instead of a graceful pulse.

Sounds like a plan—I'll grab a small STM32, a couple of micro‑servo packs, a piezo for the hum, and a strip of flexible LEDs to light up the “heartbeat.” I’ll wire the servos to a low‑speed PWM so the pulse feels like a sigh instead of a jitter. The touch sensor will feed into a simple hysteresis loop so the sculpture only flutters when someone actually pokes it. I’ll test the resonator sheet on a vibration screen first, just to make sure the tone stays mellow. Once I’ve got the code running clean, we’ll glue everything into the frame, and we’ll have a living, breathing piece that even a robot could blush at. Let's get to it.

Time to crank the STM32 up to life, line those servos in a soft‑swing pattern, and slap that resonator sheet on a vibration test rig. Once the hum feels like a lazy cat purr and the LEDs pulse just right, we’ll cram everything into the frame, tighten the screws, and watch the whole thing breathe like a digital heart. Let the blinking blush begin.