ESP8266 Community Forum

- Mon Oct 19, 2015 12:21 pm #31751 Hi,

If I node.dsleep(period, 4), where 4 means "disable RF after deep-sleep wake up", is it possible to re-enable RF later by calling something? I want to keep the RF off while I do some things (reading sensors...), then turn on RF only when I'm ready to send some data, then go back to deep sleep as quickly as possible.

Thanks,
Rob.

- Mon Oct 19, 2015 1:04 pm #31756 Answering my own question!

It seems that if I:

node.dsleep(period, 4)

then when it wakes, node.sta.status() is 0, and then if I call wifi.sta.setip(cfg) and then wifi.sta.connect(), then it works.

I assume that this results in lower power consumption up until calling wifi.sta.connect(), but haven't checked it yet (don't have the right tools to hand).

Rob.

- Fri Oct 07, 2016 5:26 pm #56209 Yes

The only way to get WiFi working is
ESP.deepSleep(1, WAKE_RF_DEFAULT)
https://github.com/esp8266/Arduino/issues/644

- Sat Oct 08, 2016 12:39 am #56223

ESP.deepSleep(1, WAKE_RF_DEFAULT)

This is a NodeMCU forum, nothing to do with Arduino.

https://frightanic.com/
https://nodemcu-build.com/
https://github.com/marcelstoer/nodemcu-pyflasher