ESP8266 Community Forum

- Thu Jul 30, 2015 3:39 pm #24645 I'll leave that answer to someone else but, deep sleep works well for such an application and is easy to implement so maybe just buy a couple of new ESP12 boards and connect XPD pin to reset, but then maybe you have the sensors soldered in or something .

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Fri Jul 31, 2015 4:16 am #24679

maybe you have the sensors soldered in or something .

No, its all on breadboard at the moment, but the only way to implement deep sleep on ESP-01 is to solder a very fine wire onto one of the "legs" of the ESP chip, across to the reset/XPD pin on the 0.1" header. Such a shame the ESP-01 boards were not designed with this connection already made, given that the leg in question is not accessible for any other purpose.

So I will consider purchase of an ESP-12. Another idea is, given that I may ultimately need more than one ADC input anyway, to use an attiny84/5 as an i2c slave, making its inputs available to the ESP. If I do that, I could also implement a way for the attiny to reset the ESP-01 every 5 minutes. This makes life more complex, however, having to program 2 chips!

- Fri Jul 31, 2015 12:39 pm #24722 Have you considered buying a pre-soldered board? There may be boards with the deep sleep pin already soldered.

- Sun Aug 02, 2015 6:37 am #24817

...So could this light sleep offer me an attractive compromise? If so, what do I do in place of delay(300000UL) ?

If you run in station mode instead of access point and station mode then it does appear that light sleep is the default. So just add

Code: Select allWiFi.mode(WIFI_STA);

at the start of your sketch and thats it. You can keep the delay(300000UL) and the light sleep should kick in for the delay.