Hello,
I have a Wemos D1 R2 board. With esptool i erased the buit in firmware and try to install the new one :
esptool.py --port /dev/ttyUSB0 --baud 115200 write_flash --flash_size=4m 0 esp8266-20170108-v1.8.7.bin
After installation the builtin led don't stop flashing . The screen in MAC appears with some not readable chars and a command prompt REPL don't appears.
No wi-fi start also.
Some solution for that?
How to Install micropython on this board?
Thanks
Luis
Wemos D1 R2 installing Micropython
Re: Wemos D1 R2 installing Micropython
The flash size is Bits. so you have to write:
esptool.py --port /dev/ttyUSB0 --baud 115200 write_flash --flash_size=32m 0 esp8266-20170108-v1.8.7.bin
esptool.py --port /dev/ttyUSB0 --baud 115200 write_flash --flash_size=32m 0 esp8266-20170108-v1.8.7.bin
Re: Wemos D1 R2 installing Micropython
Hi Roberthh, thnaks for the answer.
I am far from my desk until today evening, going to test it later. will give you some news.
regards
Luis
I am far from my desk until today evening, going to test it later. will give you some news.
regards
Luis
Re: Wemos D1 R2 installing Micropython
Well still not working. The led is not flashing anymore but can't get a command prompt on the screen.
The screen is white or when press reset button is with unreadable chars.
The screen is white or when press reset button is with unreadable chars.
Re: Wemos D1 R2 installing Micropython
working fine now. just made some ctrl-c and prompt appears.
Thanks for all
Thanks for all
Re: Wemos D1 R2 installing Micropython
Very good. After reset the device first sends debug messages at a speed of 74600 baud (or so). Since the terminal is set at 115200 baud, this looks like rubbish.