NodeMCU No Longer Detected by OSX After First Flash?
Posted: Sat Dec 29, 2018 11:45 pmI'm new to the NodeMCU and this whole world, but eager to learn. I'm trying to follow a tutorial I found on Youtube and am in the setup phase of the process. I connected my board to my laptop via USB-C to MicroUSB cable and attempted to follow the getting-started instructions here: https://github.com/nodemcu/nodemcu-devk ... ted-on-OSX.
At first things were going fine! The board wasn't showing up, and then I installed the drivers and it was! Success!
After getting to this part of the process, things went wrong:
In my case, the command was:
Here's what I got:
I then unplugged the device and replugged it, and ever since, my laptop is no longer detecting it at all:
I've tried re-installing drivers ad nauseam, mostly because that's the only thing I can think to do given that I can't really do anything about the flashing if the board isn't even being detected.
Help?
At first things were going fine! The board wasn't showing up, and then I installed the drivers and it was! Success!
After getting to this part of the process, things went wrong:
Substituting in the correct path to the firmware file you downloaded, run
python ./esptool.py --port=/dev/cu.SLAB_USBtoUART write_flash -fm=dio -fs=32m 0x00000 ../nodemcu-master-8-modules-2015-09-01-02-42-13-float.bin
Unplug the device and replug it.
In my case, the command was:
python ./esptool.py --port=/dev/cu.SLAB_USBtoUART write_flash -fm=dio -fs=32m 0x00000 ~/Downloads/nodemcu-master-8-modules-2018-12-30-03-10-29-integer.bin
Here's what I got:
WARNING: Flash size arguments in megabits like '32m' are deprecated.
Please use the equivalent size '4MB'.
Megabit arguments may be removed in a future release.
esptool.py v2.6-beta1
Serial port /dev/cu.SLAB_USBtoUART
Connecting........_
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
MAC: 68:c6:3a:d5:37:a9
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Flash params set to 0x0240
Compressed 610304 bytes to 404935...
Wrote 610304 bytes (404935 compressed) at 0x00000000 in 35.8 seconds (effective 136.6 kbit/s)...
Hash of data verified.
Leaving...
I then unplugged the device and replugged it, and ever since, my laptop is no longer detecting it at all:
ls cu*
cu.Bluetooth-Incoming-Port cu.MALS cu.SOC
I've tried re-installing drivers ad nauseam, mostly because that's the only thing I can think to do given that I can't really do anything about the flashing if the board isn't even being detected.
Help?