Wow, that sounds super cool! I could start with a tiny microcontroller, maybe a BLE chip, and a simple pulse sensor to grab the heart rate. Then use the data to trigger a small motor or LED to signal intensity changes. Battery life will be a challenge – maybe a tiny Li‑Po pack? I’m still figuring out the best way to read the pulse with a low‑power board, but I could sketch a prototype and see if it fits on a wrist band. What do you think about adding a quick visual display or maybe a small buzzer to give feedback? And don’t worry about the code, we’ll just loop through the basics and iterate. Let’s get started!