root
42 lines
518 B
Markdown
42 lines
518 B
Markdown
# Communications
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## Architecture
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Pico Dashboard
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↓
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RS-485
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↓
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ESP32 Controller
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Backup:
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WiFi
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## Protocol
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Message Types:
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- status_request
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- status_response
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- set_relay
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- relay_response
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- enable_wifi
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- wifi_response
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- toggle_ignition
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- ignition_response
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- toggle_sensor_fault
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- sensor_fault_response
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## Failure Handling
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If RS-485 is lost:
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- Dashboard displays warning
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- Last known values remain visible
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- Relay commands fail safely
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## Future Features
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- MQTT
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- Home Assistant
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- OTA Updates
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- Remote Diagnostics
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