@teastain Thank you very much. That fixed my problem.

@peter777
If you find the answer please post it. I am very interested in this as well.

Does Lilygo make anything that will receive 5G? I know espressif had announced a C5 chip that will do it but I have no idea when it will actually be available.

If not any suggestions?

Anyone know what the PIN # that I should use to read the voltage in an app is on the TTGO unit?

Is there anything special I have to do in order to use an external antenna that is connected to the ufl connector on the board?

I connected an external antenna and saw virtually no difference in the range.

Thanks

I have received more TTGO with cases and they program fine. Looks like I got a defective unit.

The T-3 has a ufl connector.

I connected an external antenna and saw virtually no difference in the range.

Is there something else I have to do to get an external antenna to do.

Case looks nice. Does it give you access to the 3 buttons on the S3?

I have several TTGO bare bones chips and can upload with no issues.

I just bought several of the TTGO with the case. On all of these the USB port is never seen so I cannot upload anything to them.

I am on a Mac (11.6.1, Big Sur) and have also installed the CH9102_Mac_Driver.

What am I missing here?

@teastain Thank you very much. That fixed my problem.

For some reason, Serial.print() does not send anything to the serial port.

I also tried the Hothead example. It has serial.print() statement but they don't do anything.

Any ideas?