Nodemcu modules

"Integrated" modules (with ESP on main board without shield)

• usually 4MB = 32Mbit flash
• set as "NodeMCU 1.0 (ESP12-E Module)" board in Arduino IDE
• upload speed 115200 or 921600
• Arduino IDE flashes these boards in DIO mode (there is no option to change this)
• when falshed using esptool or nodemcu pyflasher most of them I bought worked using "DIO" mode only (as Arduino does), when flashed in "QIO" mode it refused to start

Nodecu V3 (with shielded ESP12 module)

• the same as "Integrated" modules except these usualy (all I have) works using QIO mode also

ESP12F + separete USB-to-UART

• set as "Generic ESP8266 module" in Arduino IDE
• upload speed 115200
• select "Reset method" as "none"
• needs to be switched into flash mode manually before flashing / uploading (hold FLASH button and press RESET, release FLASH button)
• usually 4MB = 32Mbit flash
• usually (all I have) works using both DIO / QIO

Software

Flashing tools

• Esptool
• NodeMCU PyFlasher

USB-to-UART Windows 7 x64 drivers

• CH340G Windows 7 x64 driver
• CP2102 Windows 7 x64 driver

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