@crispyoz

Thanks! Used the distfeeds.conf file from the Onion.io site

https://docs.onion.io/omega2-docs/using-opkg.html

Replaced the content, ran opkg update, and opkg install python3-adc-exp.

Success, no error messages!

Thanks for trying it out on your end!

@Brad-Buskey Thanks for the detailed help with Cron. Tried for hours, if not days, to try to get it setup in my Omega2+.

@crispyoz

Thanks for the assistance, it works now!

@crispyoz

Completed the steps you recommend and working through this issue, and keep encountering this message when trying to enter the first line:

Trying to enter the following:

#
* * * * * python3 plantTracker.py
#

I have no clue as to what is causing it.

Thanks again!

@crispyoz

Thanks, I will give that a try soon.

In the meantime, update the ric.local file at

/etc/rc.local

Using this page as a reference:

https://docs.onion.io/omega2-docs/running-a-command-on-boot.html

It runs the program, but think getting the Crontab to work is “best practice” than keeping the Omega2 in an indefinite boot cycle (flashing light).

Following the tutorial for setting up a crontab to run a task:

https://docs.onion.io/omega2-docs/running-a-command-on-a-schedule.html

But each time, receive the following error message after trying to close and save with

:wq

Any suggestions?

Thanks in advance!

Wondering if it’s possible to switch out a TMP36 with a DS18B20 for temperature sensors? Working on the project with the adc expansion:

https://onion.io/2bt-python-iot-sensors/

So, thinking about switching out the TMP36 with the
DS18B20 because it’s available with longer wires and water proof connections to its pins.

Using this other project for reference on the DS18B20 for code and necessary update to schematics, such as adding a resistor to it.

https://docs.onion.io/omega2-starter-kit/starter-kit-temp-sensor.html

Thanks in advance!

Figured out the jumpers and addresses in the code for the moisture sensor and temperature sensor were mismatched in the illustration from the tutorial.

Updated the code, temporarily, to verify the connections and components were working:

https://onion.io/wp-content/uploads/2018/07/fritzing-model-1024x738.jpg

Sensors are providing readings now in line with other independent sensors.

Tried a new TMP36 and checked the connections, but no readings yet.

Switch to a new breadboard to hold the sensors and new wires, also tried two TMP36’s and receive the same reading. Not sure if both are bad from mis-wiring. The other sensors’ readings look normal.

Might order another TMP36 to see if that changes anything.

@György-Farkas

Thanks for the information!

Also found these two sites about the TMP36

https://learn.adafruit.com/tmp36-temperature-sensor/overview

http://cdn.sparkfun.com/datasheets/Sensors/Temp/TMP35_36_37.pdf

I’ll check out the jumpers and make sure they are connected to the correct sockets and making contact.

Working on the project for the IoT Sensors:

https://onion.io/2bt-python-iot-sensors/

Added the packages and code to run the sensors.

The first time powered up and ran the program, the jumper connectors were heating up. Worked out the pin connections for it and restarted it all, but receiving the following temperature readings:

What might cause the inaccurate readings?