Complete project details at from machine import deepsleep from machine import Pin from time import sleep led Pin (2, Pin.OUT) blink LED led.value(0) sleep(1) led. Found some interesting articles and managed to program an ESP8266 with a temp sensor that updates every 5 mins to Thingspeak. So the time has reset during deep sleep and restarted. Upload the following code to the ESP8266 as main.py. A while ago I researched the battery-powered options for ESP8266. And when it wakes up, the time is not zero, but always on the low end. I have never seen the time reset while it has been running, only when it is in deep sleep. I have also used the code gettimeofday(&timeNew, NULL), and then get the seconds with _sec. So deep_sleep is resetting the time after it reaches over 4200. Now if you comment out the esp_deep_sleep command and put in the delay for 10 seconds, the time keeps on going up an up for as long as the unit has been running. Run this, and you will see how the time (seconds in this case) keeps on advancing till after 4200 where it goes back to 0. ESPNOW fails to work with deepsleep Using Arduino Programming Questions rathpr April 2, 2021, 5:18pm 1 I have a project with three nodemcu boards and temp sensors (DS18B20) that send the temps to a receiving box, also a nodemcu, that then uploads the three temps to Thingspeak every 30 minutes. In 'Modem-Sleep', CPU and other peripherals are still running, so the sketch should be able to continue running as usual. If you track it, the time tracks fine between waking up and going to deep sleep, except that it goes back to zero sometime after it reaches the 4200 mark.Įsp_deep_sleep(1000000LL * 10) //10 seconds Normally the ESP-01 consumes about 0.07A but it should be possible to bring power consumption significantly down to 0.01-0.02A by going to 'Modem-Sleep' (as it is called by the manual). Everything seems working correctly except for battery energy consumption. Ive developed a fingerprint sensor using NodeMCU D1 mini powered by a 1000mah battery. In order to wake up ESP8266 with an External Wake up we need to set the RST pin to. I am trying to resolve why the time gets reset after around 4200 seconds while it is in deep sleep. 0 The following code is recommended to put an ESP8266 in deep sleep for 60 seconds: ESP.deepSleep(60 1000000) I use it on the ESP32 it also works, but the. ESP8266 WeMos D1 using deepsleep drains too much battery. The ESP8266 board will be set to deep sleep for an unlimited amount of time.
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