An app for the CCCamp 2023 flow3r badge that submits detected touch gestures to an MQTT broker.
flow3r_openhab | ||
.gitignore | ||
README.md |
flow3r-openhab
An app for the CCCamp 2023 flow3r badge that submits detected touch gestures to an MQTT broker.
I wrote this so that the flow3r can be used as a remote control for OpenHAB (which subscribes to the MQTT broker), but it should be usable with other subscribers as well.
Installation
- Copy
flow3r_openhab/config.example.json
toflow3r_openhab/config.json
and enter your configuration details. - Copy the
flow3r_openhab
directory to/sys/apps/flow3r_openhab
on the flow3r's flash filesystem. - Reboot the flow3r and start the
OpenHAB
app
Events
The touch events detected by the flow3r are published to the topic flow3r-<macaddress>/event
.
Each event is a JSON string that looks like this:
{"petal":"2","event":"touch_tip","dx":8083,"dy":6960,"duration":150}
The keys and their values are defined as follows:
Key | Value |
---|---|
petal |
The petal the event was detected on. Uses the numbers printed on the PCB (1-10), rather than the captouch indexes (0-9). |
event |
The type of gesture that was detected. One of touch_tip , touch_base , swipe_up , swipe_right , swipe_down , swipe_left , whereas swipe_up always means a swipe towards the tip of the petal, and swipe_down towards its base. |
dx |
The distance between start and end of the touch event in x (base-to-tip) direction. Unitless number, as returned by captouch's position() function. |
dy |
The distance between start and end of the touch event in y (side-to-side) direction. |
duration |
The duration between start and end of the touch event in ms . |
License
MIT License