NodeMCU No answer to probe

robmarkcolerobmarkcole Member
edited April 2017 in Devices and MCUs
Hi I am just getting started with Zerynth, having the problem below when I attempt to upload the 'hello world' script. My NodeMCU is continually flashing a blue light also. 

[info] Got header: 33540000200000a794000b00000a026a
[error] No answer to probe


  • Hi robmarkcole,

    The header you got seems like you have not virtualized the device; try to create and virtualize the device following the steps as shown in the guide.

    Let me know if this can solve your issue.
    Matteo Cipriani
    Zerynth Support Team
  • You were correct, my bad, thanks!
  • hello everyone i am new to zerynth i have this issue cant solve it can some one help me please i have installed the cp2102 drivers but when i try to virtualized my nodemcu it gives me these msgs

    [info] Starting device registration
    [info] Burning bootloader... v1.3-dev
    A fatal error occurred: Failed to connect to ESP8266
    [error] Can't burn bootloader! --> v1.3-dev
    A fatal error occurred: Failed to connect to ESP8266
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