ESP-01 strange response

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velja
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ESP-01 strange response

#1 Post by velja » 17 Mar 2017, 12:06

I have one ESP-01 1M with response after reset like in the attachment. I try different baud rate but no success. I can flash it, try R120, R147, R148, V2.0.0.0 - result is the same. I also try LUA flasher, various combination (erasing, full flash....) and nothing. Whats wrong?
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paxi
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Re: ESP-01 strange response

#2 Post by paxi » 18 Mar 2017, 17:11

Do other ESP's work?
Which USB/UART adapter is used?

velja
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Re: ESP-01 strange response

#3 Post by velja » 18 Mar 2017, 21:02

pl2303 on 3.3V. It works fine on every other module.
USB-To-RS232-TTL-PL2303HX-Auto-Converter-Module-for-Arduino-Converter-Adapter.jpg_640x640.jpg
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paxi
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Re: ESP-01 strange response

#4 Post by paxi » 20 Mar 2017, 00:49

Smells like FTDI chip. Let me guess - you're using Windows 10?
Try again with a different unit, most likely it won't work also: Welcome to FTDIgate mk2.

If it uses a fake chip (99% of them do) then the latest driver update made it talk bullshit.
Solution: avoid anything with FDTI on it and use an adapter with cp2102 or ch340 chips.

Edit: it's not an FTDI but it seems Prolific plays the same game with fake chips...

velja
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Re: ESP-01 strange response

#5 Post by velja » 23 Mar 2017, 21:52

OS is windows 7. Chip is PL2303HX. I use few ESP moduls (ESP-01 and ESP-12) with no problem.

Shardan
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Re: ESP-01 strange response

#6 Post by Shardan » 24 Mar 2017, 01:55

Seems that newer ESP-01 (the V3) have some strange behaviour.

Maybe check this thread: https://www.letscontrolit.com/forum/vie ... f=5&t=2780

Regards
Shardan
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Shardan

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