M5Stack ADS110 I2C A->D module setting gain?

[ashimotok0]

Using M5Stack ADS110 I2C A->D modules.

Any ideas how you set the gain value please . Preferably using UIFlow or failing that Micropython

Module & chip Datasheets describes 4 gain settings.

https://shop.m5stack.com/products/adc-unit

[2dof]

see:
https://github.com/ControlEverythingCommunity/ADS1100/blob/master/Python/ADS1100.py

example is for python smbus lib for I2C but it has good example for set/select configuration of adc, based on datasheet You will be able to configure adc

in micropython something like:

from machine import I2C
...
i2c.writeto(ADC_ADRESS , CONFIG)

where:
ADC_ADRES - adress of adc
CONFIG: 1 byte data (see TABLE V. Configuration Register in data sheet : https://www.ti.com/lit/ds/symlink/ads1100.pdf

for example gain = 1 , bits [ PGA0, PGA0 ] = 0 , 0 then CONFIG = b'0' ( gain = 2 ->CONFIG = b'1' , gain = 4 -> CONFIG = b'2'

From UIflow repo (https://github.com/m5stack/UIFlow-Code) based on i2c_bus.py lib You Can Use easyI2C.write_u8() method
( see some examples https://community.m5stack.com/topic/1147/external-libraries-and-i2c-via-uiflow/5)