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@@ -1,9 +1,24 @@
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-## HomeServerIOExt
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-
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-When migrating my home control server from a Raspberry Pi to x86 hardware I needed an interface to connect some sensors (door contact, PIR sensors, temperature sensor)
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-which were previously connected to the RPi´s GPIOs.
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-
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-This simple solution consists of an Arduino Nano which is connected to the host via USB and a daemon written in Python which publishes the states over MQTT.
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-
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-The Arduino reads the sensors/IO-Pins and sends state changes via Serial.
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-The Python program runs as a daemon, receives the serial data and sends values/states to an MQTT broker.
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+## HomeServerIOExt
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+
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+When migrating my home control server from a Raspberry Pi to x86 hardware I needed an interface to connect some sensors (door contact, PIR sensors, temperature sensor)
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+which were previously connected to the RPi´s GPIOs.
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+
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+This simple solution consists of an Arduino Nano which is connected to the host via USB and a daemon written in Python which publishes the states over MQTT.
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+
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+- Arduino reads the sensors/IO-Pins and sends values/state changes via Serial
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+- Python program runs as a daemon, receives the serial data and sends values/states to an MQTT broker
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+
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+### Installation
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+
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+- download/copy ioext directory to /home/pi/ioext
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+- edit ioext.py - change configuration for serial, MQTT etc (serial should be accessed via /dev/serial/by-id/...)
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+- if python3 and/or pip is not installed - install it as root: apt install python3 python3-pip
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+- install requirements: pip install -r requirements.txt
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+- chmod +x /home/pi/ioext/ioext.py
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+- test it: ./ioext.py
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+
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+install systemd service (as root):
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+- cp /home/pi/ioext/ioext.service /usr/lib/systemd/system
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+- systemctl daemon-reload
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+- systemctl enable ioext
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+- systemctl start ioext
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