Hardware > ESP8266 > Modules

ESP8266-12-S

ESP8266-12-S

The ESP8266-12-S has the same dimensions and pinout als de E and F versions. It does not have the SPI pins at the bottom of the board.

Based on ESP8266 wifi IC
Fully compatible with forepast versions ESP-12E, or ESP12F
FCC&CE&RoHS all passed
Further improved antenna design, better signal performance

Manufacturer(s)	AI-Thinker
Used chip	ESP8266EX
Flash	1,2,4 (MB)
Antenna	PCB Antenna

Added by

Onno Dirkzwager

Used chip

ESP8266EX

ESP8266EX

ESP8266EX has 17 GPIO pins which can be assigned to various functions by programming the appropriate registers. Each GPIO can be configured with internal pull-up or pull-down,...

Arduino board settings

Board name:
Generic ESP8266 Module

Flash size:

1MB (8Mb)
2MB (16Mb)
4MB (32Mb)
8MB (64Mb)
16MB (128Mb)

Partition scheme:

1MB (SPIFFS(FS) 64KB OTA:~470KB)
1MB (SPIFFS(FS) 128KB OTA:~438KB)
1MB (SPIFFS(FS) 144KB OTA:~430KB)
1MB (SPIFFS(FS) 160KB OTA:~422KB)
1MB (SPIFFS(FS) 192KB OTA:~406KB)
1MB (SPIFFS(FS) 256KB OTA:~374KB)
1MB (SPIFFS(FS) 512KB OTA:~246KB)
2MB (SPIFFS(FS) 64KB OTA:~992KB)
2MB (SPIFFS(FS) 128KB OTA:~960KB)
2MB (SPIFFS(FS) 256KB OTA:~896KB)
2MB (SPIFFS(FS) 512KB OTA:~768KB)
2MB (SPIFFS(FS) 1MB OTA:~512KB)
4MB (SPIFFS(FS) 2MB OTA:~1019KB)
4MB (SPIFFS(FS) 3MB OTA:~512KB)
4MB (SPIFFS(FS) 1MB OTA:~1019KB)
8MB (SPIFFS(FS) 6MB OTA:~1019KB)
8MB (SPIFFS(FS) 7MB OTA:~512KB)
16MB (SPIFFS(FS) 14MB OTA:~1019KB)
16MB (SPIFFS(FS) 15MB OTA:~512KB)

Usefull links