@MicroController Thank you for your in-depth feedback. I will indeed consider all that you have proposed and will be back to you in several days. Testing will take me a few days. One issue I have is that my shop testing 'competes' with the data being fed to Adafruit's IO. I will have to create separ...

You are correct about actually determing what the root cause of the hanging was. This may be a challenge because I do not have full access to the tank well house. Monitoring memory may be the only option.

I sincerely appreciate your help.

And here is the most recent data grab: Screenshot 2024-09-18 at 13.13.54.png From this it can be seen that the HUZZAH32 has run continuously for nearly 48 hours without hanging up. Bottom line: From this current behavior, your restart suggestion appears to have been the solution to this problem. I c...

@MicroController Update After the most recent upload, the HUZZAH32 has not hung. Here are few graph grabs that illustrate the new behavior. Screenshot 2024-09-18 at 10.17.52.png This shows the approximate start of the previous upload. The squiggly lines are feed data. Screenshot 2024-09-18 at 10.18....

If using Arduino IDE v2, the USB cable must be connected to your MCU. If not you may not see your port. IDE v1 does not care if USB is connected or not. That has been my experience. Perhaps this will help you.

Update! I will be allowed to update my code to the pump house enclosure HUZZAH32 MCU tomorrow afternoon sometime. I have added a restart function that will send me a text when the ESP32 is restarted. The restart time is 2400 so will see the text at 0800 or so. I will report back after it has been on...

@MicroController Thank you VERY MUCH for your in-depth response to my query. Today's research has made me wonder if I am using the right MCU for this project (which is embarrassing me because I cannot solve this hanging issue). That said your final suggestion may resolve this problem altogether. I w...

I have an Adafruit HUZZAH32 ESP32 MCU that gathers the following data from a domestic water tank: water level, temperature, humidity and LiPo battery voltage. This data is printed to a 16x2 LCD. It also sends daily texts three times a day and if the water level drops below eight (8) feet, it sends a...

This is my exact hookup.

Thanks.

After updating/installing: Arduino ESP32 Boards to v2.0.13 and esp32 by Espressif Systems v3.0.4 I cannot get a simple 16x2 LCD to work as it once did. The sketch is one I have used several times in the past. Board used: ESP32-WROOM-32 I2C connections are: SDA->GPIO#21, SCL->GPIO#22 When power and G...