Hey, I totally get the frustration! A quick trick is to use a small capacitor across the sensor’s output – that smooths out those little spikes and keeps the drift under control. If you’re using a thermistor, add a simple voltage divider with a low‑temperature‑coefficient resistor to give the micro a more stable reference. And don’t forget a bit of hysteresis in your thermostat logic; a tiny 0.5 °C difference for turning the chiller on or off will stop it from whining back and forth. Keep the wiring short, use shielded cables, and maybe swap in a high‑precision analog reference if the drift’s still a villain. Sweet and simple—your churner will thank you!