Posts made by alveron

@alveron
Update
re 1. I tried a second machine and am able to upload a sketch without having to do any button presses, however I am still not getting any communication back through the serial monitor. When I run a sketch I can see the boot messages but no messages generated from within by the sketch.

Hi
Recently purchased the T7-S3, have a few observations, want to know if this is the norm or I am down a path I should not be.

1. Connecting the unit to the Auduino IDE seems to go ok at the start, select the board and the com port fine, however when I press the restart button the IDE loses the comm port and I have to select it again ? If I try to upload a sketch I get this error

Sketch uses 244698 bytes (18%) of program storage space. Maximum is 1310720 bytes.
Global variables use 16084 bytes (4%) of dynamic memory, leaving 311596 bytes for local variables. Maximum is 327680 bytes.
esptool.py v4.5.1
Serial port COM15
Connecting....

A serial exception error occurred: Write timeout
Note: This error originates from pySerial. It is likely not a problem with esptool, but with the hardware connection or drivers.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
Failed uploading: uploading error: exit status 1

2. What does pressing the reset and boot at the same time do ? If I do this first, the sketch uploads and runs fine, but I need to restart first, and none of the Serial.println messages are written to the serial monitor?? So I am confused, the error message says possible hardware error, but I can upload after pressing the reset and boot fine, same hardware ??

3. The schematic shows that I can read the battery voltage on IO2, this is through a voltage divider of 100K each so the voltage read should be doubled to get the right reading. When I try this I get about half of what is expected and it never changes, even as the battery drops the reading stays the same? Doesn't seem to be working.

Thanks in advance..