A small step into coding Arduino's. A big step for me!
 

Work began by plugging a strip of LED's into an Arduino and connecting an Ultrasound proximity sensor.

Having never coded an Arduino before I set about making a strip of LED's light up when somebody came near them. ChatGPT was very useful for helping me with the code! 

Managed to get this working fairly quickly, having already tried a motion sensor, which I discounted as not being the right tool for what i wanted. The motion sensor had some built in delays which meant it couldn't continually monitor and feedback, so wasn't responsive enough to track movement. It worked as a switch to turn something on for a prescribed amount of time, triggered by movement, not to track where somebody was. I wanted that interactive feedback, rather than just turn on/turn off

This sensor worked well, so the next stage was to connect a pulse reader to measure somebodies heartbeat in order to time the 'pulsing' of the LEDs using their own pulse