Search found 3 matches

by iabarry
Tue Sep 24, 2019 5:47 pm
Forum: General Discussion
Topic: Cp2102-ESP32 do I need the 2N2222s ?
Replies: 2
Views: 657

Cp2102-ESP32 do I need the 2N2222s ?

The ESP32 Dev circuit has 2@ 2N2222 that can be used to drive EN and IO-0. Under what circumstances are these required/activated? I am building my own PCB using the EPS32-WROOM module and wonder if I need the 2N2222s. My preference would be to use the common little module with a CP2102 and a 6 pin h...
by iabarry
Sun Aug 18, 2019 2:14 am
Forum: General Discussion
Topic: ESP32 WROOM 32 won't enter serial bootloader mode
Replies: 6
Views: 7425

Re: ESP32 WROOM 32 won't enter serial bootloader mode

I've not seen this concisely written in one place, so here goes: 1. Prerequisites In the IDE: Select the proper PORT Set baud rate 115600 <--- this may change if you change ports Select the "ESP32 Dev Board" 1.1 Ensure IO-2 is Grounded. IO-2 must be low to enter bootloader. By default it is pulled. ...
by iabarry
Sat Aug 17, 2019 3:42 pm
Forum: General Discussion
Topic: ESP32 WROOM 32 won't enter serial bootloader mode
Replies: 6
Views: 7425

Re: ESP32 WROOM 32 won't enter serial bootloader mode

hi username

Great image for the sequencing of EN and GPIO-0.
When does the uploading occur and when do I release EN?

thanks
Barry
love the creative account name too!

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