New to MicroPython, putty showing garbage chars

[tonynsx]

This is what I have: https://learn.adafruit.com/adafruit-fea ... management, without the parameters, I get different screen, but same thing, I can't do anything.

What do you mean by bad firmware image? I'm using the latest image from here, https://micropython.org/download/esp8266/

[bitninja]

I probably should have said "incompatible" firmware. The images on the MicroPython site are fine. That's what I used when I just tested it.

I do not own an Adafruit Huzzah, so unfortunately I cannot help on that front. But I am certain that MicroPython supports it...

https://docs.micropython.org/en/latest/ ... ckref.html

Your commands to flash the device looks good so that's why I lean toward something wrong with the BIN.

Could the actual hardware be bad? Have you tried other languages on the device?

[tonynsx]

My conclusion is that the actual ESP8266 that I have is somehow bad, or something wrong with the power. I'm connecting it to my laptop to give the 3.3v.
https://learn.adafruit.com/adafruit-fea ... management

[bitninja]

BTW... I usually unplug and re-plug the device (hard reset) before testing with putty. Here is what I connect with by default...

putty1.PNG (29.74 KiB) Viewed 5450 times

The attachment putty2.PNG is no longer available

[tonynsx]

I tried unplugging and plugging the ESP8266 before opening putty, and yes, I'm using baud rate 115200

[bitninja]

Sorry I couldn't help.

I really would try Lua or Arduino to see if the hardware is having issues.

Good luck!

[tonynsx]

Thanks for your help

[mattyt]

I think there's something more fundamental going wrong here; you should not be able to see those characters. They are emitted at 9600 baud and your terminal shouldn't be able to display them if it's configured to 115200. It has nothing to do with the MicroPython firmware (yet); the problem is occurring before that even starts.

Maybe try a different terminal program? Different computer? I'm really struggling to figure out how that can occur..! Perhaps you're right, maybe it is a defective ESP...

[tonynsx]

I tried another terminal program other than Putty, forgot which one, but still same issue. Although the Putty was showing different characters than the other terminal program, nevertheless, both terminal programs was unresponsive.

I haven't had the chance to try another laptop, that's my next step.

[tonynsx]

Just to make sure, when I erase flash and then install the new firmware, I don't need to push any buttons (RST , flash) right? Because according to the Micropython officla page, you don't need to press anything, but other websites tells you to press flash, rst, then let go flash or something llike that.