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Connect RaspberryPi GPIOs and 1-Wire temperature sensors to MQTT 🍰🔘📡
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hobbyquaker/rpi2mqtt
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Connect RaspberryPi GPIOs and 1-Wire temperature sensors to MQTT 🍰🔘📡
Prerequisite: Node.js version 6.0 or above. I suggest to usehttps://github.com/tj/n to install a recent version ofNode.js.
Install rpi2mqtt:$ sudo npm install -g rpi2mqtt
To run rpi2mqtt in background and start on system boot I suggest to usePM2.
Usage: rpi2mqtt [options]Options: -c, --config use config file [default: "~/.pi2mqtt/config.json"] -l, --log log to file [default: "~/.pi2mqtt/daemon.log"] -v, --verbosity possible values: "error", "info", "debug" [default: "error"] -a, --alias alias topics. can be used multiple times. See examples -i, --in, --input use gpio as input. can be used multiple times. See examples -o, --out, --output use gpio as output. can be used multiple times. See examples -p, --payload type of the mqtt payload. possible values are "plain" and "json" [default: "plain"] -r, --retain publish with retain flag -t, --status-topic topic prefix for status messages [default: "hostname/status/"] -z, --set-topic topic prefix for set messages [default: "hostname/set/"] -x, --testament topic for connect and last will message [default: "connected"] -u, --url broker url. See https://github.com/mqttjs/MQTT.js#connect-using-a-url [default: "mqtt://127.0.0.1"] -s, --w1-wait seconds to wait before reading /sys/bus/w1/devices/ [default: 30] -n, --w1-interval polling interval for 1-wire temperature sensors in seconds [default: 30] -w, --w1-disable disable 1-wire -h, --help show help --version Show version number Examples: index.js -w -i 17 -i 18 -o 23 Disable 1-Wire, use GPIO17/18 as inputs and GPIO23 as output index.js -t -o 17 -a Use 1-wire and GPIO17 as output. Set w1/28-0000002981762:Temperature/Garden mqtt topic aliases and remove topic -a gpio/17:Light/Garden prefixDefault prefix is the hostname. You can disable the topic prefix with empty option --topic
<prefix>/status/w1/<1-wire-serial>
By default status topic is<hostname>/status, this can be changed through the command-line option--status-topic.
Example:raspberry/status/w1/28-000005908b0e
<status-topic>/gpio/<gpio-number>
Example:raspberry/status/gpio/17
<set-topic>/gpio/<gpio-number>
By default the set topic is<hostname>/set, this can be changed through the command-line option--set-topic.
Example:raspberry/set/gpio/23
The payload can be a plain number (0,1) or the stringsfalse andtrue.
You can set individual topics with the --alias option.
Example:rpi2mqtt -a w1/28-000005908b0e:Temperature/Garden
If you want to use spaces in the topic use quotes around the whole -a option, like e.g.-a "w1/28-0000012345:Temperature Garden".
Mind that aliases don't affect the configured prefix. Sorpi2mqtt -o 17 -a gpio/17:Light/Garden -t Raspberry5 wouldresult in topicRaspberry5/Light/Garden for GPIO 17.
- Integratehttps://github.com/hobbyquaker/piplate2mqtt
- PiFace
- Displays
- uart/spi/i2c?
MIT Copyright (c) Sebastian Raff
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