see https://github.com/espressif/esptool https://hackaday.io/project/159471-esp8266-lua-tutorials https://hackaday.io/project/161063-esp8266-lua-tutorial-part-2
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mstroh76 commentedon Jul 23, 2020
pip2 install esptool
esptool.py -h
export ESPTOOL_PORT=/dev/ttyAMA0
esptool.py flash_id
[-]NodeMCU Firmware and PWM example for ESP-01[/-][+]NodeMCU Firmware and example for ESP-01[/+]#50 NodeMCU Firmware and example for ESP-01
#50 NodeMCU Firmware and example for ESP-01(S)
#50 NodeMCU Firmware and example for ESP-01(S)