I only put power on VBUS but i didnt put for VDD....
My mistake ...
Now it shows on device manager , but still cannot load firmware, should be some other problem

boarchuz wrote: ↑

Thu Dec 23, 2021 4:25 am

Check VDD on the CP2102N

cp2102n should connect to VDD is it？ should not connect to VBUS? maybe thats why my board not working?

Not exactly sure if this is would cause failure to enumerate (I use the QFN24 version, with the VIO pin) but it appears RSTb should be tied to VDD not VBUS. 2.1 Power In all cases, a 1 kΩ pull-up on the RSTb pin is recommended. This pull-up should be tied to VIO on devices that have it. On devices ...

I designed my own pcb with reference for pico module , heltec esp32 , using esp32 pico v3 But when i plug in , the device manager did not show anything Also current does not show short circuit Do I need to do anything after solder ? Hi, Did you solve your problem? Nope... i checked the power for CP...

ESP_Sprite wrote: ↑

Mon Dec 20, 2021 6:08 am

Sorry, that picture is potato quality; all the text is unreadable. Can you re-post in higher quality?

Sorry about that
https://drive.google.com/file/d/1Ce8uON ... sp=sharing
can try this link?

ESP_Sprite wrote: ↑

Sat Dec 18, 2021 10:24 am

Hard to say. Do you have a schematic to show us?

I am new to esp32 forum, first time post.
I didnt manage to attach the picture. I put it on google drive.
https://drive.google.com/file/d/1j9UmOn ... sp=sharing

Thank you!

I designed my own pcb with reference for pico module , heltec esp32 , using esp32 pico v3
But when i plug in , the device manager did not show anything
Also current does not show short circuit

Do I need to do anything after solder ?

之前画过arduino自己的板子，现在频繁用esp32 自己画了个板子， 但是焊好了之后插在电脑上端口没有反应，Device Manager也是没有显示，不知道为什么，供电正常，也没有烧的迹象，两个测试板子都没有反映
想问问是我错过什么步骤了么
或者有类似的教程么