In previous article we described the ESP8266 wifi module integrate into the Nodemcu development kit
Here we look at how to load the firmware on the device.
First step is to assess the nodemcu development kit model we are working with. In our case we’ll perform the various operations with a development board Nodemcu V0.9. The USB-Serial chipset in this case is the CH340G
To load the firmware, you can use the methods described in the Nodemcu site
Basically there are two main methods:
- Flash through the Windows Nodemcu Flasher tool
- Flash via a utility in Python to use in Linux, OSX or Windows
The Nodemcu flasher tool allows you to load a default firmware on the card intuitively and quickly.
As can be seen from the above documentation of the devkit you do not need to take any action on the pin GPI0 ESP to put the devive in flash mode; the flash operation and execution start automatically.
In the next article we’ll flash the firmware using the Nodemcu Flasher tool