sethvoltz / particle-monitor

Monitor-Monitor - Show which monitor is currently active while fullscreen

Particle Monitor-Monitor

Show which monitor is currently active while fullscreen. This works in conjunction with software on your desktop to send the set commands.

Usage

Send commands to the device over USB Serial. On macOS you can find the active device by running:

ioreg -c IOSerialBSDClient -r -t \
| awk 'f;/Photon/{f=1};/IOCalloutDevice/{exit}' \
| sed -n 's/.*"\(\/dev\/.*\)".*/\1/p'

Serial commands are:

<display> is the 32-bit unsigned ID of the display. <indicator> is the zero-based index of which indicator should light up when a display is set active.

• list -- List all displays in memory, this runs during startup
• add <display> <indicator> -- Add or update a display from memory
• remove <display> -- Remove a display from memory
• set <display> -- Set a display as the current active, will unset all others

Development

Build and test the Monitor-Monitor by running the following command. This will compile the code on the Particle cloud, load it onto the device and wait a moment before opening the serial terminal.

$ particle compile photon ./ --saveTo firmware.bin && \
particle flash <device_name> firmware.bin && \
sleep 7 && particle serial monitor

In a second terminal you can send commands to the device with echo via USB serial. The <device_number> is the one displayed when the particle serial monitor loads. See Usage above for commands.

$ echo "set three" > /dev/cu.usbmodem<device_number>