ESP32-WROOM-32D Dev Board Schematics/PCB

hardware support
21

Hi sir, my question to you is if i want to programmed esp32 chip using usb to ttl conveter (to see this click the link below) can i programmed the esp32 using this converter if i make esp32 connection with this programmer like tx rx 3.3 and gnd and make a separate connector like relimate with these 4 pins connector in the PCB
can esp32 be programmed ??? as i am an electronic enthusiast so i want to try out programming with this please do reply

22

Hi there,

I am not familiar with ESP32 programming outside of most basic usage. I believe your questions could be much better answered on the general forum at

Cheers,
Valentine

23

Thank you. I have 120 esp32 for mistake! now I know what to do

16666364857068652207532642918993
166663648570686522075326429189931800Ɨ4000 282 KB

24

SIR I AM HAVING PROBLEM IN UPLOADING THE PROGRAMME TO ESP32 2 to 3 programme I run its working fine but after that it started showing errors like this.

Fattle error occurred:- time out for packet header

Sketch uses 221014 bytes (16%) of program storage space. Maximum is 1310720 bytes.
Global variables use 14688 bytes (4%) of dynamic memory, leaving 312992 bytes for local variables. Maximum is 327680 bytes.
esptool.py v3.0-dev
Serial port COM7
Connectingā€¦
Chip is ESP32-D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: 08:3a:f2:aa:2c:f4
Uploading stubā€¦
Running stubā€¦
Stub runningā€¦
Changing baud rate to 921600
Changed.
Configuring flash sizeā€¦
Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB
Compressed 8192 bytes to 47ā€¦
Writing at 0x0000e000ā€¦ (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 21846.9 kbit/s)ā€¦

A fatal error occurred: Timed out waiting for packet header
A fatal error occurred: Timed out waiting for packet header

25

Hi there,

I am not familiar with ESP32 programming outside of most basic usage. I believe your questions could be much better answered on the general forum at

Cheers,
Valentine

26

Hello!!

I understand that this is a relatively old post, however I was wondering why you decided to use a external 12MHz oscillator with the CH340G, doesnā€™t it have one included ? And would it work without it ?

Thanks!

27

No

No

=========================================

28

CA I buy this CAN from you? please