I still need to add a flag so that I can prevent deep sleep when I want an OTA update. Keeping the device on for 1 second seems to be enough for everything to boot up, read in sensors, send the MQTT messages, then it will sleep for 10 minutes. Then, when MQTT launches, it automatically posts the values. The moment I added the MQTT integration and the sensors, the Dallas sensors gets scanned on boot and updated values are read in. Wemos S2 Mini ESP32-S2FN4R2 4MB FLASH WIFI Board ESP32-S2 MicroPython Rp70. So, I found out that I don’t need to do anything fancy. Our Arduino is most time in deep sleep mode and just use around 0 5 mA on paper 0. Is this feasible? How would I read in the temperature sensor values on my own schedule rather than what’s defined in the sensor library? Enter deep sleep for the calculated time.ESP32 Light Sleep Mode Current Consumption is: 0.8mA. Their supply voltage is also reduced in order to save more power. However, the only difference is that in light sleep mode, the CPUs are stalled (clock-gated) as well as most of the RAM, and the digital peripherals.

Check the time to determine when the next boot time should be (so that we can poll the temperature sensor at regular intervals) The ESP32 Light Sleep Mode is very similar to the Modem Sleep Mode.Check to see if an OTA update is pending.Read in each of the temperature sensor values.This is the missing step, then I think I can set up an automation loop that would do: However, I cannot find an “action” that let’s me read in each of the temperatures. Sleep current is the same as time. TimeAlarm: 230uA PinAlarm: 1.65mA TouchAlarm: 2.6mA ESP32-S2 Light Sleep. For other chip families, see the other pages in this guide. There’s an action ( mqtt.publish) that will allow me to post the sensor values to the MQTT broker as well as an action to trigger another round of deep sleep ( deep_sleep.enter). Heres a chart of deep sleep power consumption on ESP32-S2 when different kinds of alarms are used.

My understanding is that waking up from deep sleep activates the esphome.on_boot trigger, so I could use that in my automation/template. What I really want to do is set up a deep sleep loop. But do you know the other possibilities to save energy like light sleep and clock reduction. However, I now want to set it up so that it works well on a battery so I can put it outside in the yard (it’s for a soil temperature monitoring application so I can optimize my garden plantings). We all know that we send our ESP32s to deep sleep to save energy.

I am able to successfully read from all of them, connect the ESP32 to wifi, etc. I’m trying to set up a ESP32 with four Dallas sensors.

Esp32 wifi deep sleep