I don't have a good answer for you, other than you are asking the system to do too much. Here's a couple recommendations 1) I doubt you really need the data every 100ms. Collect 10 data points and send them in a single packet. This is a lot less network overhead, and easier to sequence. 2) Bluetooth...

Those pins are for extra data lanes that would be used in Quad SPI . QSPI is not currently supported in arduino, so can only be enable using the ESP-IDF drivers. If you aren't using those pins for QSPI, you should be able to use them for whatever you would like. Perhaps your board is using gpio 14 f...

Without actual code demonstrating the issue, nobody is going to be able to help you. This is very likely a priority issue. Loop task runs at priority 1. Start a new task at priority 6 and put the led flash in that.

This documentation page is new, so I don't think there was any version for 2.0.14. As 3.0.0 is still in beta, the only version that exists is for "master". Once 3.0.0 is released, the counter will presumably start.

I've forgotten to put paste under the ground pad entirely before. That is probably a bit more obvious than a couple missed pins

Even better, ping what you actually want to get to. Google's dns servers have pretty good uptime. The endpoint you target may not.

If you manually turn it off with a disconnect, it doesn't reconnect. It is equivalent to ending the session. Reconnect means that if something happens (typically the router reboots), the client will attempt to re-establish the existing session there. In practice, I find it insufficient for much the ...

If you are not intending to make a USB device out of the esp32, then you want hardware CDC. You also will want the ID pin on your USB port tied to ground with 5K1 (this sets USB-OTG). Try this:

Does "connected to battery" mean that the battery is connected to the 5V input, so that it is going through the LDO, or directly powering the esp32 on 3V3? Not sure why it would be different battery vs usb, but 100K is a bit high for the current limiter. Try taking it down an order of magnitude (10K...