ESP8266 Community Forum

HI I have been attempting to replicate the following example with a moisture sensor on an ESP8266-01.

viewtopic.php?f=11&t=4458&hilit=sleep+and+wake+on+gpio2+low

I cannot get the ESP to boot up using that example. Any other ideas on using GPIO2 to trigger CH_PD to turn on and off, I do similar with an ATMEGA and this would solve quite a few issues on a number of projects if can work it out. Thanks in advance.

its not gpio2 triggering ch_pd. The esp is woken by the motion sensor and gpio2 is used to keep ch_pd active as long as the sw runs; basics (makes me wonder about your signature).
without any info on your moisture sensor you can't expect much more helpfull comments...

Whether you wonder or not makes no difference to me, I actually need to update my signature as I left Humai, probably I should update it with Semi Finalist in Global Mobile Innovators Tournament in the Smart Home Category, first phase winner in Microsoft / Arduino World Maker Challenge, Bizspark Member, I could go on and all accomplished before I had ever touched an ESP which is hardly the entire IoT, so don't start getting rude, this is actually the first forum I have encountered where the people are actually nice and it is an enjoyable experience to use it.

GPIO2 is connected to the sensor, when the sensor detects it triggers CH_PD to high which turns on the ESP and when nothing detected it is set to low as far as I could tell. On my ATMEGA version, the ATMEGA send high to CH_PD which turns on the ESP and low to turn it off, so maybe the terminology was not correct but that is what is happening I believe.

The sensor is the following and has digital output which is connected to GPIO2 in my case.

http://www.ebay.es/itm/172182751330

Hi, looking at that, personaly I would use deep sleep or you will wase your battery on powering the sensor.
Wake - power up the sensor - check soil - enable WiFi if soil is dry - report - go back to sleep.