Hello, I made a custom PCB following schematics of the ESP PICO D4 datasheet, made it printed and assembled by JLCPCB and I just received it but there is a problem. When I connect my board UART to my computer I receive this continiously : 17:48:47.012 -> rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FA...

Exactly the same problem i have on my custom board. https://www.esp32.com/viewtopic.php?f=12&t=14549 Did you also received the board recently from JLPCB? Maybe is a faulty lot of ESP32 PICO D4. Yes, my board has also been printed and assembled by JLCPCB... Did you try to contact them ? I'll send th...

mikemoy wrote: ↑

Wed Mar 04, 2020 1:28 pm

Did you poke the TX/RX pins with a scope to see if you see anything ?

Yep, 3.3V on both pins, nothing happens on TX but when I try to flash the module, I can see signal on RX pin...

Thanks for your help

Thanks a lot ! Can this lack of bypass caps cause the module not to boot up ? Also, is there any way to verify that my module is grounded or not ?

Hello, I designed a board based on different circuits available online and I just received my assembled board but I'm not able to program the ESP Pico D4 module. The USB connection is successfully made with my computer but I get a timeout error when trying to flash the module with ESPIDF. This is wh...