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One last question: when working with a boot.py and a main.py file – Then: C:\Python37\Scripts\esptool.exe -port COM3 –baud 460800 write_flash –flash_size=detect 0 C:\ path>\esp8266-xxxx.binĪfter that, I can use uP圜raft – but you need to remember to press the ‘connect link’ button, then the > prompt appears. i can flash and run the blink sample from arduino IDE. but the board is not responsing with mpfshel, rshell, picocom. i flashed it afterwards successfully and i can use esptool to get chipid or flashid. (I did not press “BOOT/FLASH” on the board – it seemed to cause problems if I did) yesterday my esp8266 stopped working via serial.
#HITECH ESP8266 SERIAL PORT MAC WINDOWS#
Here’s what worked: To erase – From a windows command prompt do: (I use COM3) C:\Python37\Scripts\esptool.exe -port COM3 erase_flash
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I tried to follow in the book from page 324 – but had some problems. Ok, what I did do was to use the pytool from the command prompt. The instructions starting from page 39 ask me to select the serial port – that was where the problem started, it kept giving that problem (open serial error…), so I couldn’t even start to erase and then program the MicroPython firmware – did I do something wrong here? I will explain what I did further below and have a few questions about the explanation in the book (maybe some others will find this helpful) Yes I had to flash the firmware, but this is where I couldn’t get past the error message originally. (On some occasions it helps to wait before trying again.) Make sure your device has suitable firmware and is not in bootloader mode!īytes read: b’\x00\x00\x00\x00\x00\x00\x00\x00′Ĭheck the configuration, select Run → Stop/Restart or press Ctrl+F2 to try again. I select under Port: Silicon labs CP210X USB to UART Bridge (COM3) and I get: UPDATE: I tried using Thonny – same problem: “open serial error, please try again” (by the way, the baud rate set in uP圜raft is 115200 – I tried making it 9600, doesn’t help) Modules: cjson,file,gpio,net,node,pwm,tmr,uart,wifiīut when I use uP圜raft IDE, and I select com3 (my realterm is now closed) – I get the connect error: I can prove using RealTerm terminal program that I can open COM3 when the ESP8266 is connected and I can even see the following start up text using RealTerm :(with baud rate 9600) – when I press the reset button.Ĭommit: c8037568571edb5c568c2f8231e4f8ce0683b883 I installed uP圜raft IDE (Win 10) and my ESP8266 com port enumerates as COM3.
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I bought the book Micropython programiming with ESP32 and ESP8266