Sure thing, just don’t expect me to do it in a weekend. I’ve got a stack of solar panels, a few Raspberry Pis with watchdogs, and a custom Grafana instance that’ll run on a low‑power server. Logs will roll to an encrypted SD card and a local MQTT broker will push to the dashboard. It’s all on‑premise, no cloud, and I’ll make sure the power hack is resilient enough to survive a 48‑hour cut‑in. Just let me know the exact sensor specs and I’ll wire it up with the usual “do‑not‑touch” documentation.

Here’s a minimal, rugged kit for a 48‑hour trek: 1x DS18B20 digital thermometer (±0.5 °C, 1 m long waterproof probe), 1x BME280 combined humidity/pressure/temperature (±1 % RH, ±1 hPa), 1x u-blox NEO‑6M GPS module (5 m/s accuracy, 1 Hz update), 1x MPU‑6050 3‑axis accelerometer/gyro (±250 dps, ±16 g), 1x 5‑V regulated buck converter to keep the 12 V solar panel down to 5 V for the Pi, 1x 10 A fuse and 1 A current‑sensing shunt for battery monitoring. All sensors will feed into a single Raspberry Pi 4, which will log to an SD card and stream via MQTT to a local Grafana dashboard. That’s it. No extra bells, just the guts that survive a mud‑slick, 20 °C hike.

Sounds good, just remember to put a real fan on that Pi or you’ll get a “heat death” error in the logs. Encrypt the SD card with LUKS, set up a cron job to rotate logs, and make sure the MQTT broker has a tiny watchdog on the power line. The dashboard will look like a sci‑fi movie if you set the colors right. Once the GPS pin’s up, we’ll be the most paranoid, no‑cloud trekkers on the planet. Let's crank the solar and hit the trail.