ESP32-H2-WROOM-03 PCB connector type

[micmoc95]

Can someone tell me which type of connector can
I use to plus my H2 wroom to my pcb ?
Thanks

[ESP_Sprite]

You would generally solder modules like that directly to the PCB, without using a connector.

[micmoc95]

Thanks ! But what about flashing new versions with my DIY programing tool ? How do people program this device using these tiny test points ?

[ESP_Sprite]

The -H2 has an internal USB-serial-JTAG converter. What I imagine most people do is have some kind of USB connector on their PCB and use that to program the H2 while it's soldered to the board. (Older chips could only be programmed via the serial port, so people would have either some kind of serial port debug connector or an integrated USB-serial chip to program the device.)

[micmoc95]

I used to program my -C6 using JTAG interface. What I noticed with -H2 is that I had to activate download mode with IO9 the first time to have my computer recognize the ESP JTAG controller.

[ESP_Sprite]

Yeah, you probably want to make GPIO9 available somewhere for the first flash and in case a firmware update somehow disables USB-serial-JTAG by accident (e.g. by reconfiguring the GPIO pins they're on.)