Designed for IR blaster type usage using the low-level ir-ctl command to learn and transmit sequences.
This script has no understanding of individual command sequences making it perfect for IR blaster type usage.
Intended for use on a small Linux device such as a Raspberry Pi Zero. It should work on any Linux device supporting an IR transmitter and the ir-ctl and mosquitto_sub commands.
Keep in mind that the IR transmitter may not be as powerful as commercial IR blasters and will need to be close to the receiving device.
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See below for installation instructions.
You'll also need to learn some sequences, again see below
Once configured, sequences can be transmitted by publishing on the configured topic:
mosquitto_pub -h mqtt.example.com -t home/mqtt-ir/someroom/soundbar \
-m 'sb123:power 4 sb123:tv 0.2 sb123:stereo'
The commands are formatted "device"command". In the above example, the device is "sb123".
Any purely numeric values are delays in seconds. Decimal fractions may be used. There is a (configurable) default delay between commands. If that delay is not required, put a 0 (numeric zero) between commands.
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Transmit sequences are stored in the following directory structure
${THISDIR}/remotes/${DEVICENAME}/${DEVICENAME}-{${COMMAND}.conf
Use the ir-ctl command to learn sequences - example:
For single button presses
ir-ctl -1 -d /dev/lirc1 -r./fsr78/fsr78-power.conf
For longer sequences - Will be played back exactly as sent including delays
ir-ctl -d /dev/lirc1 -r./fsr78/fsr78-power.conf
Use Ctrl-C to stop
In both cases, there is no understanding of the actual sequence. Note: Keep the remote close to the IR receiver when learning sequences
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This assumes an IR receiver/transmiter is connected, such as http://raspberrypiwiki.com/Raspberry_Pi_IR_Control_Expansion_Board https://smile.amazon.com/IR-Remote-Control-Transceiver-Raspberry/dp/B0713SK7RJ
Create/verify mqtt-ir.conf - At a minimum the MQTT broker options will need to
be set.
Verify hard coded paths and other information in mqtt-ir.service
Assuming use of Raspberry Pi GPIO, add to /boot/config.txt
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dtoverlay=gpio-ir,gpio_pin=18
dtoverlay=gpio-ir-tx,gpio_pin=17
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apt update
apt install mosquitto-clients v4l-utils
useradd -r -G video mqtt2ir
cp -p mqtt-ir.service /etc/systemd/system
systemctl daemon-reload
systemctl enable --now mqtt-ir
Reboot
Now learn some sequences