State: Display Battery Level
This state shows the current battery level of OpenValve.
The upper LED displays the battery status. The LED color gives a rough estimate of how much operating time is left:
| Upper LED | Meaning | Estimated remaining operating time |
|---|---|---|
| Green | Battery full (> 8.5V) | More than 2 months |
| Orange | Battery medium (> 8.0V) | More than 1 month |
| Red | Battery low (> 7.5V) | Less than 1 month |
| Red blinking | Battery almost empty (< 7.5V) | Very little time remaining |
warning
If the battery becomes completely empty, OpenValve OpenValve switches to an error state and will stop watering until the battery is replaced.
State transitions
Use this table to see where OpenValve can go from this state.
| Button action | Next state | What happens |
|---|---|---|
| Short press | Display Current Soil Moisture | Show the current soil moisture value. |
| Long press | Select Opening Threshold | Enter the irrigation settings selection. |
| Very long press | Off | Turn OpenValve off. |