The SparkFun MG2639 Cellular shield is an Arduino compatible shield that gives the user access to the MG2639_V3 GSM+GPS module. The module is capable of accquiring a GPS location as well as ...
ESP32 (Publisher) → HiveMQ Cloud → Backend (Subscriber) → Supabase PostgreSQL ↘ ↗ Frontend (Publisher) → Relay Commands → ESP32 (Subscriber) ...
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