ESP8266 deep sleep with Hx711

i have esp8266 with battery, i use sht temperature and humidity sensor and hx711 4 cell scale, when it go sleep mode i heard noise which indicate power consumption in sleep mode, what i noticed it looks related to Hx711 chip if i desable the Hx711 noise not there,
i need to minimize the power consumption to allow the battery to last as long as possible
i hope someone could halp,
Best regards,
Sayed Baqer Alseb3

You can switch off the power rail for the HX711, what library do you use? In case you are using

See HX711/ at master · bogde/HX711 · GitHub

It provides a power_down() function, to put the ADC into a low power mode. According to the datasheet,

When PD_SCK pin changes from low to high and stays at high for longer than 60μs, HX711 enters power down mode.

Use case: Battery-powered scales. Accordingly, there is a power_up() function to get the chip out of the low power mode.

See also HX711/HX711_full_example.ino at master · bogde/HX711 · GitHub for an example with scale.power_down(); and scale.power_up();

i am using HX711_ADC Olav Kallhovd library,
as i am not very well understand bogde library

further check with empty sketch with deep sleep only,
i noticed the noise still there which indicate it is from esp8266 but i dont know what is the real way to resolve

So I would switch to a lib that supports power saving or implement the power saving function in your code have a look at

Be aware that a HIGH pin needs also power while sleeping, have also a look at other sensors that could use unnecessarily power.

i pull it high before going to deep sleep as well but same, looks issue with the esp8266 module,
all what i have in my hand having same issue

noise started with any sketch when deep sleep called

Do not forget! The esp32 does not maintain this Pin-High status during deep sleep.

An internal pull-up resistor must therefore still be declared.
An external 10k (up to max. 50k-to save more Energy) pullup resistor against 3V3 is also a safe choice.

Best regads
Michael Kurzweil