nodemcu + el capitan

To flash

git clone 
cd esptool
sudo python ./ install
  • upgrade firmware
$ python ./ --port=/dev/cu.wchusbserial620  write_flash  -fm=dio -fs=32m 0x00000 /tmp/nodemcu_integer_0.9.6-dev_20150704.bin

Erasing flash...
Took 3.92s to erase flash block
Wrote 450560 bytes at 0x00000000 in 54.1 seconds (66.6 kbit/s)...


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