Practical Sensor Application?

[xytsrm]

Currently experimenting with ESP-01S modules. Have had no difficulty connecting to WiFi, however there are several issues that appear to rule out it's use as a practical sensor solution. First, in active-mode connected to WiFi the unit draws 75ma, making it a battery killer; the only solution is deep-sleep. In deep-sleep the WiFi is shutdown and needs to reconnect on sensor activation; re-connection time can vary from 1.5 secs to 8 secs. When used in combination with additional similar sensor units, the variation in connection time can change the order in which the sensors are reported that is significant in determining the status of events. While it's possible to normalize unit report times to the maximum connection time that slows the overall sensor system response.

Are there any other approaches that can maintain a practical battery-life of as least 1 year, and yet maintain a WiFi connection to avoid the re-connection time overhead?

[Her Mary]

Could this example help? https://github.com/espressif/ESP8266_RT ... power_save