steinhelge
a544594769
- cabin_node: subscribes to local MQTT (ESPHome sensors), sends temperature, battery voltage/SOC and switch states over LoRa SF12 - cabin_gw: receives LoRa packets, publishes JSON to home MQTT broker - Bidirectional: gateway forwards ON/OFF commands from home HA to node - cabin_node always in RX mode (12V powered) — commands arrive instantly - ESPHome config for ESP32 on teknisk rom: Victron MPPT BLE + JBD BMS BLE + DS18B20 temperatures + GPIO switches for varme/VVB Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
#pragma once
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// LoRa radio parameters — must match exactly on node and gateway
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#define LORA_FREQ 868.0 // MHz
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#define LORA_SF 12
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#define LORA_BW 125.0 // kHz
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#define LORA_CR 5
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#define LORA_SYNC_WORD 0xAB // distinct from ice-track (0x34)
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#define LORA_POWER 22 // dBm (SX1262 max)
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// Wio-SX1262 pins for XIAO ESP32S3
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// Verify against https://wiki.seeedstudio.com/wio_sx1262_with_xiao_esp32s3
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#define LORA_NSS 44 // D7
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#define LORA_RST 43 // D6
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#define LORA_DIO1 2 // D1
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#define LORA_BUSY 1 // D0
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// Send interval (node) — 30 min fills one packet; adjust 1–4x/hour
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#define SEND_INTERVAL_MS (30UL * 60UL * 1000UL)
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// MQTT broker (home, shared with mitt_lora)
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#define MQTT_HOST "192.168.86.31"
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#define MQTT_PORT 1883
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#define MQTT_USER "mqtt"
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#ifndef MQTT_PASS
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#define MQTT_PASS ""
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#endif
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// MQTT topics (cabin ESPHome → node subscribes to these)
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#define TOPIC_TEMP_IN "hytte/sensor/temp_inne"
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#define TOPIC_TEMP_OUT "hytte/sensor/temp_ute"
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#define TOPIC_BATT_MV "hytte/sensor/batt_mv"
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#define TOPIC_BATT_PCT "hytte/sensor/batt_pct"
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// MQTT topic gateway publishes received packets to (home broker)
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#define TOPIC_GW_STATUS "hytte/lora/status"
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// Command topics (home HA publishes → cabin_gw → LoRa → cabin_node → ESPHome)
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// Payload: "ON" or "OFF"
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#define TOPIC_CMD_VARME "hytte/cmd/varme"
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#define TOPIC_CMD_VVB "hytte/cmd/vvb"
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// ESPHome publishes switch states here (cabin_node subscribes)
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#define TOPIC_STATE_VARME "hytte/switch/varme/state"
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#define TOPIC_STATE_VVB "hytte/switch/vvb/state"
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// WiFi credentials
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#ifndef WIFI_SSID
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#define WIFI_SSID "your-ssid"
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#endif
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#ifndef WIFI_PASS
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#define WIFI_PASS "your-pass"
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#endif
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// HMAC key — 32+ chars, keep secret
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#ifndef HMAC_KEY
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#define HMAC_KEY "hytte-link-hmac-key-replace-me"
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#endif
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#if __has_include("secrets.h")
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#include "secrets.h"
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#endif
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