Instructions
" " ! "  
 Espressif Systems
ESP8266 
AT Instruction Set
Notes: !
•
Please make sure that correct BIN (/ESP8266_NONOS_SDK/bin/at) is already in the chip (ESP8266) 
before the AT commands listed in this documentation can be used.!
•
AT firmware uses priority levels 0 and 1 of system_os_task, so only one task of priority 2 is allowed 
to be set up by the user. !
•
AT returns messages below to show status of Wi-Fi connection of ESP8266 station!
‣
WiFi CONNECTED - Wi-Fi connected!
‣
WiFi GOT IP - ESP8266 station got IP from AP!
‣
WiFi DISCONNECT - Wi-Fi disconnected&
esp_init_data_default.bin
0x3FC000
Stores default RF parameter values, has to be downloaded into 
flash at least once. 
If the RF_CAL parameter area is initialized, this bin has to be 
downloaded too.
blank.bin
0xFE000
Initialize Flash user parameter area, more details in Appendix.
blank.bin
0x3FE000
Initialize Flash system parameter area, more details in 
Appendix.
boot.bin
0x00000
In \bin\at
user1.2048.new.5.bin
0x01000
In \bin\at\1024+1024
Address
Description
bin 
Espressif Systems  /   Friday, July 15, 20169 73










