Got d1-mini clones and not able to flash them

Fri 2020.04.03

@opichals I too have had success with WAVGAT, haven't stumbled across WeMos though, but checking that page, and beneath the Overview tab:

Package Included:
1×WeMos D1 mini

Maybe there is a subtle difference in board design? Is there underside silkscreen that definitively states it isn't a WeMos brand? You then might consider a refund 'Not as Advertised' request, as title doesn't match what's included doesn't match image.

https://www.wemos.cc/en/latest/d1/index.html

EDIT:
Oops, didn't really understand the 'Tasmota' reference, before I posted

The fact that the Tasmota firmware works without any issues makes me think about what Espruino needs changing to support these particular ESP8266s as well.

So it is not running yet - correct?

maybe there are some wrong setting in user_rf_cal_sector_set()

https://github.com/espruino/Espruino/blob/21e84735c5349c7566291821ac40b9154d0459f1/targets/esp8266/user_main.c#L326-L348

No, it is not. I was too optimistic when I was able to connect to it.

The wifi.connect() call consistently crashes it.

@MaBe I haven't looked into these addressing specifics before. I have tried flashing it as 1MB/2MB and 4MB boards and none of those seemed to help.

Any suggestions?

You could try a older firmware, pick one from here

I think I tried 1.99 (for 4MB) and had the same issue. Let me get back to it once I have some time again to spend on this. Perhaps there was something I missed in those tests. It was a lot of combinations in a single weekend.

Fri 2020.04.03

While this is three years old, and on a WAVGAT brand, here is the exact commnd I used for the version specified then. The device worked last time I powered up, over a year ago!!

http://forum.espruino.com/comments/13469084/

Also check out post #19 as another more recent added content

Did some test with different board

1. poor usb to serial chips or driver implementation need slow baud rate like 115200
   
2. flash modes like qio/dio are esp-vendor-board specific
   
   

Workaround for 1. is to use a usb to serial adapter directly connected to TX, RX and GND to use higher baud rates.

I used

python "../../../esptool/esptool.py" --port COM9 --baud 115200 write_flash --verify --flash_freq 80m --flash_mode dio --flash_size 32m 0x0000 "boot_v1.6.bin" 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x37E000 blank.bin

to flash the files to my LoLin NodeMCU with a esp8266, but when I connect to espruino web IDE, it always just spams

>>> Sending...
---> "\u0010print(\"<\",\"<<\",JSON.stringify(process.env),\">>\",\">\")\n"
>>> Sent
>>> Receiving...
WARNING: No result found for "process.env" - just got "H!ˆÈ\b1§D\u0000‹\u000e~Œ¦¤|žŠ×\u0018!Æ\t\f¸Œ1DjGI|àôH!ˆÈy!ŽD\u0000‹uLŒf†‡DHÄÊ\u0018!\u0000\b†\u001eÌÆJDKGÉøàôHáÖԄŽäJH9D\u0000‹\u000enHÄÊ)H\u0000\bÌLÆÝ\büKGÉøàôHáÖԄŽôJH9D\u0000‹\u000enHÄJ)H\u0000\bÌLÆÝ\bül$hSËðH!ˆÈ\b1§D\u0000‹\u000e~Œ¦¤|žì>†!Æ\t\f\u0000éc–Dé¬è0ê\u0018?\b)(Ê⌦14\nJ „D„ÄŒ\u0000\bªˆ\u0000\f!\nH\u0000‚•h,^F\b)\b\nôŒ¦1ü\nJH9Œæ…Œ\u0000Œ¾ˆ®\nxÅ\nÀI,ìt`|ÿH!ˆÈ\b1ŽD\u0000‹\u000e~Œ¦¤˜\n)×\u0018!Ɖ€LÆJDè•h¬Z?\b)\b\nôŒ¦1ü\nJH9Œf\nŒ\u0000\bŠH\nH!\nH\u0000è•G‰4ÿR\b)\b\nôŒ¦1"
>>> 

what does that mean? I've tried a ton of different commands to flash it, erasing flash afterwards, but it didn't work once.

wrong baud rate in Espruino IDE settings? default is 9600, you need 115200