How to flash

Depending on the system you use there are several ways to flash your device, here you can see the fastest and easiest.

You can use esptool or a graphic version called ESP Flasher (only available for Windows)

ESP Flash software Download ESP Flasher (win32)

Select binary file Kesp82.bin, your COM port and clic "Download"

Now select binary file Kesp82.spiffs.bin, change address to "0xEB000" and clic "Download"

Your device is ready to use.

ESP Flash Wiring

For power up your board in flash mode do this connections. This may be different for other models if does not work see the manufacturer's datasheet. To flash the firmware you need a USB to TTL UART Adapter.

ESP-01

ESP-01 Flash Wiring Example
Pin Connect To Function
VCC 3.3v POWER SUPPLY
GND GROUND + UART GROUND POWER SUPPLY GROUND
TXD UART RX UART DATA
RXD UART TX UART DATA
CH_PD 3.3v WIFI-ENABLE
GPIO0 GROUND FLASH ENABLE

ESP-07

ESP-07 Flash Wiring Example
Pin Connect To Function
VCC 3.3v POWER SUPPLY
GND GROUND + UART GROUND POWER SUPPLY GROUND
TX UART RX UART DATA
RX UART TX UART DATA
EN 3.3v WIFI-ENABLE
GPIO0 GROUND FLASH ENABLE
GPIO15 GROUND UART ENABLE

OTA Warning

To use this feature the device must have at least 1Mb of memory and you must leave 512Kb free space in flash memory so that the new firmware can be downloaded to it.