ESP32 Forum

Hi,

I'm trying to flash and run the ESP32-H2-MINI module with minimum schematic, but there is no connection with module.

My schematic has following pin connections:

1(GND) - GND
3(3V3) - 3.3V
8(EN) - through 10k to 3.3V
22(IO8) - through 10k to 3.3V
23(IO9) - GND
30(RXD0) - FTDI TX
31(TXD0) - FTDI RX

Running > "idf.py erase-flash" returns "No serial ports found"

What do I miss. Maybe all the module's ground pins 1, 2, 11, 14, 36~53 must be connected?

Fixed!

As the module is really microscopic, I made a mistake and soldered wire meant for pin 8(EN) to pin 9(IO0).

After soldering it to pin 8(EN) communication started and I could flash the module.

Thank you for your attention.

Good to see you solved this, thanks for indicating it was a soldering and not a design issue.