root
118 lines
4.2 KiB
YAML
118 lines
4.2 KiB
YAML
############################################################################################
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# SPECIFIC DEVICE VARIABLE SUBSTITUTIONS
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# If NOT using a secrets file, just replace
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# these with the values (in quotes)
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###########################################################################################
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substitutions:
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timezone: "Pacific/Auckland"
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sntp_update_interval: 6h # Set the duration between the sntp service polling
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# Network time servers https://www.ntppool.org/zone/@
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sntp_server_1: !secret ntp_server_1
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sntp_server_2: !secret ntp_server_2
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sntp_server_3: !secret ntp_server_3
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###########################################################################################
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# Internal clock fallback support
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# If SNTP is invalid, we fall back to a simple internal minute counter
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# We assume user powers on the device at 12:00 noon
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# => 12 * 60 = 720 minutes from midnight.
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# Not restored, so it resets each boot.
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# Therefore, if no network and you still need timing functions, switch on ay noon.
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###########################################################################################
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globals:
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- id: current_mins
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type: int
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restore_value: no
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initial_value: "720" # 720 is 12:00 Noon
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interval:
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- interval: 60s
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then:
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- lambda: |-
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// If SNTP valid, store minutes since midnight.
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auto now = id(sntp_time).now();
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if (now.is_valid()) {
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id(current_mins) = (now.hour * 60) + now.minute;
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} else {
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// Fallback: minutes since boot.
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id(current_mins) = (int)(millis() / 60000UL);
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}
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###########################################################################################
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# Real time clock time source for ESPHome
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# If it's invalid, we fall back to an internal clock
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# https://esphome.io/components/time/index.html
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# https://esphome.io/components/time/sntp
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###########################################################################################
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time:
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- platform: sntp
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id: sntp_time
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# Define the timezone of the device
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timezone: "${timezone}"
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# Change sync interval from default 5min to 6 hours (or as set in substitutions)
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update_interval: ${sntp_update_interval}
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# Set specific sntp servers to use
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servers:
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- "${sntp_server_1}"
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- "${sntp_server_2}"
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- "${sntp_server_3}"
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# Publish the time the device was last restarted
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on_time_sync:
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then:
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- logger.log: "Synchronised SNTP clock"
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- text_sensor.template.publish:
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id: time_sync
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state: "SNTP clock Syncd"
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# Update last restart time, but only once.
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- if:
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condition:
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lambda: 'return id(device_last_restart).state == "";'
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then:
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- text_sensor.template.publish:
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id: device_last_restart
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#state: !lambda 'return id(sntp_time).now().strftime("%a %d %b %Y - %I:%M:%S %p");'
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state: !lambda |-
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// grab the current SNTP time
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auto now = id(sntp_time).now();
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// format it as e.g. "Fri 23 May 2025 - 03:45:12 PM"
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return now.strftime("%a %d %b %Y - %I:%M:%S %p");
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text_sensor:
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# Creates a sensor showing when the device was last restarted
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- platform: template
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name: "Time: Last Restart"
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id: device_last_restart
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icon: mdi:clock
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entity_category: diagnostic
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#device_class: timestamp
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- platform: template
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name: "Time: Internal Time"
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id: time_text
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update_interval: "1min"
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entity_category: diagnostic
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lambda: |-
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// If SNTP time is valid, show real time/date.
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if (id(sntp_time).now().is_valid()) {
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auto t = id(sntp_time).now().strftime("%H:%M:%S - %d-%m-%Y");
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return { t };
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}
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// Fallback: show internal clock based on current_mins (minutes from midnight).
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int mins = id(current_mins);
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if (mins < 0) mins = 0;
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if (mins >= 1440) mins = mins % 1440;
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int hour = mins / 60;
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int minute = mins % 60;
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char buff[32];
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snprintf(buff, sizeof(buff), "%02d:%02d (fallback)", hour, minute);
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return { std::string(buff) };
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- platform: template
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name: "Time: Sync Status"
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id: time_sync
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update_interval: "1min"
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entity_category: diagnostic
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