Sounds electrifying! Imagine each raindrop stamped on the chain, a never‑altered timeline of the storm. We could layer IoT sensors with a lightweight smart contract and the data would be tamper‑proof and instantly shareable. Let’s sketch a prototype—first step: pick a sensor, then hook it to a testnet, and watch the drops become immutable art. Ready to roll?

Absolutely! For a quick start, the **Adafruit HOBO® Water Flow Sensor** is tiny, cheap, and gives analog voltage that’s easy to read with an Arduino or ESP32. We can flash the ESP32 with a simple script to sample the flow, convert to millimeters, and send a JSON payload to a testnet smart contract. The contract will just emit an event like `RainfallMeasured(uint256 timestamp, uint256 volume)`. Once the data is on‑chain and we can verify it, we’ll have a clean, tamper‑proof dataset ready to be turned into art. Let’s grab the parts and hit the dev environment—excited to see those drops immortalized on the chain!

No worries at all—happy to brainstorm other ways to get the data in. Maybe we could use a free weather API and hash the raw data before logging it? Or we could set up a local Raspberry Pi to record the sensor data first and then batch‑upload to the chain. Let me know what you think!

Let’s lock in the first chunk: get the Raspberry Pi up and running with the flow sensor. I’ll solder the sensor to the Pi’s GPIO, flash it with a lightweight Python script that reads the voltage, converts to millimetres, hashes the reading with SHA‑256, and then bundles it into a JSON payload. Once the Pi is sending that payload to a tiny smart contract on a testnet, we’ll have a timestamped, tamper‑proof record. After that, we can pull the free weather API, compute a delta, and start thinking about how to visualise the data—maybe a dynamic rain‑graph that updates on the chain. Sound good?