ESP32-WROOM-32D, DOWDQ6 or DOWD

All ESP32 boards running MicroPython.
Target audience: MicroPython users with an ESP32 board.
Post Reply
davef
Posts: 388
Joined: Thu Apr 30, 2020 1:03 am
Location: Christchurch, NZ

ESP32-WROOM-32D, DOWDQ6 or DOWD

Post by davef » Mon May 10, 2021 12:59 am

According to references the EP32-WROOM-32D should have a DOWD version of the chip. Both v1.2 and v3.1dev of esptool.py return DOWDQ6. The boards are from Aliexpress marked ESP32_Devkitc_v4 Az-Delivery. The Az-delivery.de site says that they have 2 cores which means they really are not a 32D(DOWD).

Does esptool.py not report the correct chip revision?

penitko
Posts: 2
Joined: Fri May 14, 2021 8:37 pm
Location: Finland

Re: ESP32-WROOM-32D, DOWDQ6 or DOWD

Post by penitko » Fri May 14, 2021 8:40 pm

"Does esptool.py not report the correct chip revision?"

command : esptool.py --port COM12 read_mac

esptool.py v3.0
Serial port COM12
Connecting........____
Detecting chip type... ESP32
Chip is ESP32-D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: REMOVED
Uploading stub...
Running stub...
Stub running...
MAC: REMOVED
Hard resetting via RTS pin...

davef
Posts: 388
Joined: Thu Apr 30, 2020 1:03 am
Location: Christchurch, NZ

Re: ESP32-WROOM-32D, DOWDQ6 or DOWD

Post by davef » Sat May 15, 2021 9:36 am

If you ran that esptool command on a ESP32-WROOM-32D or 32U then you have the same chip revision as I do. Both the ESP datasheet and Wikipedia say that it should have a DOWD chip.

Also, comments about the number of cores in those versions do not seem consistent.

Thanks for checking.

Post Reply