FieldLink: ESP32-S3 Pump Controller with Local/Remote Interlock and MQTT Telemetry
ESP32-S3 pump controller enforcing LOCAL/REMOTE gating and hardwired STOP; Modbus 3-phase current sensing, TLS MQTT telemetry/commands, and dry-run shutdown.
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ESP32-S3 pump controller enforcing LOCAL/REMOTE gating and hardwired STOP; Modbus 3-phase current sensing, TLS MQTT telemetry/commands, and dry-run shutdown.