> Build logs from the bench. SDR, Meshtastic, LED panels, a homelab that keeps growing, and the occasional voided warranty.
// signal > trace > thought
POCSAG is still alive. Your county EMS is still broadcasting dispatches in plaintext over frequencies anyone can receive. I built a scanner that listens to all of it.
An RTL-SDR running on a Pi4 decodes live POCSAG pager traffic and publishes it over MQTT. A $15 ESP32 touchscreen display subscribes and shows pages in a retro green-on-black UI. Full build guide including the CYD display config that took way too long to find.