my logging software reported some activity,
what logging software do you use? Also, do you know your OpenSprinkler’s firmware version? Prior to firmware 2.0.3, the controller does not save the operation status in EEPROM. Therefore if the controller restarted (for example, due to power outage), the operation will reset to ‘enabled’. From firmware 2.0.3, the operation status is stored in EEPROM, so it will preserved.