Problem flashing about unowifidevedserial1 HOT 7 CLOSED

what is "Arduino Uno Wifi Rev 3."?
R3 is Uno and Mega pinout revision,
but Uno WiFi is "Developer Edition" or Rev. 2
this library is only for the retired "Arduino Uno WiFi Developer Edition" made by arduino.org

from unowifidevedserial1.

It says: "Board Model UNO WIFI R3" In my mind that meant rev 3. In the right bottom corner there is indeed "Developer edition".

from unowifidevedserial1.

ok. it is the "Developer Edition".

the esptool command for 1.7.4 is here:
https://github.com/jandrassy/WiFiEspAT#at-17-1

only use the esp_init_data_default.bin for 40 MHz crystal

from unowifidevedserial1.

Hello, tried again with the new 1.7.4 instruction. Now the Serial monitor doesn't go crazy anymore, but I get this:

ets Jan 8 2Speed : 40MHz
SPI Mode : QIO
SPI Flash Size & Map: 16Mbit(1024KB+1024KB)
jump to run user1 @ 1000

ets Jan 8 2013,rst cause:1, boot mode:(3,6)

load 0x40100000, len 2592, room 16
tail 0
chksum 0xf3
load 0x3ffe8000, len 764, room 8
tail 4
chksum 0x92
load 0x3ffe82fc, len 676, room 4
tail 0
chksum 0x22
csum 0x22

2nd boot version : 1.7(5d6f877)
SPI Speed : 40MHz
SPI Mode : QIO
SPI Flash Size & Map: 16Mbit(1024KB+1024KB)
jump to run user1 @ 1000

correct flash map
V2
Mo
⸮rf cal sector: 507
freq trace enable 0
rf[112] : 00
rf[113] : 00
rf[114] : 01

SDK ver: 3.0.4(9532ceb) compiled @ May 22 2020 16:26:04
phy ver: 1156_0, pp ver: 10.2

�`J⸮⸮
The only reaction to the AT commands is some rubbish.
I noticed while flashing this message: WARNING: Detected crystal freq 20.39MHz is quite different to normalized freq 26MHz. Unsupported crystal in use?
Crystal is 26MHz
Which bin should I use?
Kindest regards,
JP

from unowifidevedserial1.

the message about crystal is expected.
did you use the esp_init_data_default.bin for 40 MHz crysta?

what baud rate do you have set in Serial Monitor?

from unowifidevedserial1.

Hello Juraj,

success!
tried with the new 1.7.4 instruction for 1MB and now the response for "AT" = OK. The other instructions all respond as expected.

I guess OTA updating is not possible anymore without giving up the persistent Wifi?
Thanks again for your assitence and patience.
JP

from unowifidevedserial1.

the esp8266 on Uno WiFi has a 4 MB flash.
yes, AVR OTA to ATmega328p is not possible with AT firmware

from unowifidevedserial1.