Minimum binding 8266 and firmware mode
There are situations when it is not possible to flash an existing module in any way.In order to understand how to deal with this situation, you need to understand how the BOOT mode (firmware) works in the module.The most complete implementation is made in modules with a USB connection, such as NodeMCU. Below is a fragment of the diagram of this module: In this case, transistors VT1 and VT2 automatically detect the operating mode and … Read more