4-20mA sensors to interface with pycom sipy

[noboz32]

Hi
I wanted to design IIOT based automation system for Biogas fuel steam boilers to boil water at high temperature at very low power (using 24 V battery)
I am using 4-20mA sensor connected with 4-20mA current loop receivers to sense the amount methane gas and wanted interface the sensors with Pycom sipy to read the sensor readings and the output device work according to sensor readings.

Please Share reference code for interfacing the 4-20mA sensors output with pycom sipy

Note: Multiple 4-20mA Sensors like Gas sensor, Temperature sensor , Steam Pressure sensor

your expert advice regarding any other expansion boards to be used or any schematic will be very helpful for us

[seb]

@noboz32

We do not have any ready made code for interfacing with these devices. I would recommend searching with google to see if anyone has produced a micropython library for the device.

A quick search by me brought up a library by our very own @robert-hh: https://github.com/robert-hh/ads1x15

This should allow you to interface with the board easily but I am afraid we cannot provide any direct support other than for general usage of Pycom modules.

[noboz32]

Hi
Thanks for the library.
But before going to test forward i was able to install all the updates in pycom but i am not able to check the I2C connectivity with pymakr i am searching for tutorial which will help me

please suggest from where i should learn ??

[seb]

@noboz32

A I2C example can be found here: https://docs.pycom.io/chapter/tutorials/all/i2c.html

[noboz32]

yes i understand completely with you I ll be the one who ll make a suitable code

I just need to know the simple way to find out i2C device connectivity with pycom by using command line

[seb]

@noboz32

Do you mean just seeing what devices are connected to I2C? If so, please see the i2c.scan() function: https://docs.pycom.io/chapter/firmwareapi/pycom/machine/I2C.html#i2cscan