ESP07 - Current Problem in Deep Sleep

[rathpr]

I created a post a few years ago and am getting back into this project again trying to resolve a deep sleep power draw problem. I have created a water level monitor using a LMPS33HW. The LMP33SHW is submerged (encased in potting epoxy) at the end of a 50 ft cable so am also using a LTC3311 to boost the IC2 signal. I am measuring and compensating for atmospheric pressure using a BMP180. I have also included a voltage divider to measure battery voltage. Everything is controlled using a ESP07 running off of 2 x 3,500 mah 18650 batteries with a 7333A LDO voltage regulator. The ESP07 is in deep sleep for 30 minutes then awakes takes the readings then goes back to deep sleep. Everything works well.

The problem was the current drain when in deep sleep. I measured 3.7 ma when in deep sleep and 75 ma for 7 sec when taking readings at the positive lead from the battery. I was expecting ua when in deep sleep not ma. I also measured the amperage at the SCL pinout GIPO 5 and was essentially 0 to a few ua. I added a reed relay on the positive voltage lead leading to the sensors. The ESP07 would come out of deep sleep, use GIPO 15 to turn on the reed switch, take the readings, turn off the switch and then go back to deep sleep. The amperage draw is a little less but essentially about the same.The batteries have only been lasting a few weeks. I also added another lead from GIPO 15 to the EN pin on the LTC4311. When the EN pin on the LTC4311 is driven low it is supposed to go into low power mode. This had no effect at all. It appears it would be the ESP07 causing the power drain in deep sleep but don't know how. Does anybody have any ideas? Any thoughts would be appreciated. Thanks.

[srnet]

Remove all the added components so you just have a ESP07 and its power supply components.

When you put this redacted circuit into deep sleep what is the current consumption ?

[rathpr]

Thanks for the reply. I removed all the components and powered up the ESP07 but unfortunately the libraries on the components require a check for proper functioning so sketch would not complete and go into deep sleep. I did replace the code with a simple sketch that included a 5 second delay and then deep sleep in the void loop. Sometimes would go into deep sleep other times not. Various current draw from 70 ma to 120ma when not in deep sleep.I think I need some new ESP07's or maybe a D1 mini pro and try again. Need a LDO voltage regulator and external antenna jack so not many options.