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Paradox serial pinout:

[-------|
| TX | RX2 of ESP
| RX | TX2 of ESP
| GRD | GRD of ESP32
| VCC |
[-------|
I have used a cross connection to the ESP32

Using MQTT Topics are:

• domoticz/in - sending mqtt messages to Domoticz
• domoticz/out - getting mqtt messages form Domoticz (will work later on this feature)
• paradox/status - (will work later on this feature)

Domoticz configuration

Paradox status selector switch

Paradox sensors in Domoticz

Domoticz lua script for sending message to Paradox controller

Script Domoticz_lua_script_Paradox_status.lua