TI demo smart home backend #1
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At the bottom of the homescreen, on the left, there is an LVGL logo. Replace that with TI's logo. Signed-off-by: Suhaas Joshi <[email protected]>
Signed-off-by: Suhaas Joshi <[email protected]>
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January 27, 2025 14:22
Use alsa to open PCM device and play audio using it. Use mutex to synchronize the read of play/pause by audio thread and write of play/pause by LVGL thread. Use amixer to set volume in volume-change callback from LVGL thread. Signed-off-by: Divyansh Mittal <[email protected]>
Initialize MQTT instance for subscription with TLS set to enable encrypted communication on port 8883. Subscribe to relevant topic to receive commands for volume-control. Implement callback function to control audio volume using amixer based on the values received in MQTT packet. Signed-off-by: Divyansh Mittal <[email protected]>
Remove existing code to show random time being incremented periodically. Use date command to obtain current date-time in UTC timezone. Parse the output from date command to show on LVGL HMI. Set date-time repeatedly after every second. Maximum diversion from actual time will hence be of 1 second. This will work only when internet access is available. Signed-off-by: Divyansh Mittal <[email protected]>
Detect event ID for gpio-keys event. gpio-keys interrupt must be enabled in dts. Wait for interrupt from this event ID and lock/unlock HMI input on each key-press that is detected. Signed-off-by: Divyansh Mittal <[email protected]>
Initiate a thread that continuously flips user LED signal using sysfs with delay based on a shared variable. Protect the shared variable using mutex. Shared variable can be altered by either the LVGL HMI thread or by the MQTT callback function after it receives a packet on relevant topic. Signed-off-by: Divyansh Mittal <[email protected]>
Enable ADC channels in trigger-less mode and initiate MQTT instance for publishing messages. Poll for ADC data in fixed intervals. After each poll, publish it using MQTT. We do not publish any message if mosquitto is not able to connect to internet and initialize MQTT instance. Signed-off-by: Divyansh Mittal <[email protected]>
On each callback of change in ev charging progress, call publish function to transmit message on relevant topic via MQTT. Signed-off-by: Divyansh Mittal <[email protected]>
If button configuration is not detected, then screen should not block input on sliding Lock on HMI. Signed-off-by: Divyansh Mittal <[email protected]>
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Remove command line instructions mentioned in docstrings for some C files Signed-off-by: Divyansh Mittal <[email protected]>
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Requesting 2 changes:
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Add delay while polling for the status of play/pause button in the audio thread Signed-off-by: Divyansh Mittal <[email protected]>
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