Hi All. My first post on Gitter! I am experimenting with a Wemos D1 Mini (=ESP-12F). I am interested in startup time from deep sleep. With WAKE_RF_DEFAULT, there seems to be a delay of ~300ms before setup() is executed. I understand that during this time, the ESP re-establishes contact with the WiFi router. With WAKE_RF_DISABLED, this delay seems to be reduced to ~150ms. Are there any ways to reduce this significantly further? I am hoping this can be reduced to a few ms (ideally <=1ms). I am designing a low-power sensor to run for long periods on batteries. I believe I can get the sensors to wake the ESP from deep sleep by pulling RST low. Then I want the ESP to execute a small piece of code to record the event in RTC memory and go back into deep sleep. Some of these events may last only a few ms and could occur every few tens of ms. However, most of the time they will be far less frequent. Only every 15 mins do I want to wake the ESP, connect to WiFi and transmit data.