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ESP-12S User Manual 

Shenzhen Ai-Thinker Technology Co., Ltd

           http://www.ai-thinker.com       

                                                                                                                                                                                             

 

FCC STATEMENT 

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:   

(1) This device may not cause harmful interference. 

(2) This device must accept any interference received, including interference that may cause undesired operation. 

Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s 
authority to operate the equipment. 

 

Please notice that if the FCC identification number is not visible when the module is installed inside another device, 
then the outside of the device into which the module is installed must also display a label referring to the enclosed 
module. This exterior label can use wording such as the following: “Contains FCC ID: 

2AHMR-ESP12S

” any similar 

wording that expresses the same meaning may be used. 

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment 
should be installed and operated with a minimum distance of 20cmbetween the radiator & your body. This transmitter 
must not be co-located or operating inconjunction with any other antenna or transmitter. 

 

CE Mark Warning 

 

 

 

The module is limited to OEM installation ONLY. 

The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install 
module. 

The module is limited to installation in mobile application; 

A separate approval is required for all other operating configurations, including portable configurations with respect to 
Part 2.1093 and difference antenna configurations. 

There is requirement that the grantee provide guidance to the host manufacturer for compliance with Part 15B 
requirements.    

                                                                                                                                                                                                                           

 

Summary of Contents for ESP-12S

Page 1: ...ESP 12S User Manual REV 1 0 2016 7...

Page 2: ...se wording such as the following Contains FCC ID 2AHMR ESP12S any similar wording that expresses the same meaning may be used This equipment complies with FCC radiation exposure limits set forth for a...

Page 3: ...escriptions 5 2 1 Interfaces 6 2 2 Pin Mode 8 2 3 Antenna interface 8 3 Package information and OEM installation method 9 3 1 Package information 10 3 2 OEM installation mathod 10 4 Absolute Maximum R...

Page 4: ...X offers a complete and self contained Wi Fi networking solution it can be used to host the application or to offload Wi Fi networking functions from another application processor When ESP8266EX hosts...

Page 5: ...power management units Supports antenna diversity Wi Fi 2 4 GHz support WPA WPA2 Support STA AP STA AP operation modes Support Smart Link Function for both Android and iOS devices SDIO 2 0 H SPI UART...

Page 6: ...oltage 3 3V Operating Current Average value 80mA Operating Temperature Range 40 125 Ambient Temperature Range Normal temperature Package Size 18mm 20mm 3mm External Interface N A Software Parameters W...

Page 7: ...igure 2 ESP 12S pinout Table 2 ESP 12S pin description Pin number Pin name function 1 RST Reset module 2 ADC A d conversion result Input voltage range 0 1V value range 0 1024 3 EN Chip enable pin Acti...

Page 8: ...ce has four channels but users can extend the channels according to their own needs PWM interface can be used to control LED lights buzzers relays electronic machines and so on IR Remote Control IO14...

Page 9: ...UART0 U0TXD U0RXD MTDO U0RTS MTCK U0CTS Debugging UART1_TXD GPIO2 can be used to print debugging information By default UART0 will output some printed information when the device is powered on and is...

Page 10: ...low low high Flash Boot low high high 2 3 Antenna interface ESP 12S Modules through the IPEX interface to connect to external antenna The antenna must be in line with the 802 11g 802 11b IEEE standard...

Page 11: ...allation method The external size of theESP 12S WiFi module is 16mm 17mm 3mm as is illustrated in Figure 4 below Figure 3 Top View of ESP 07s WiFi Module Figure 4 Dimensions of ESP 12S WiFi Module Tab...

Page 12: ...ference in front of the package information in the Layout on the main board for OEM factory Please pay more attention Module s direction and the antenna close to the edge of board is better the Compon...

Page 13: ...JEDEC J STD 020 3 0 to 3 6 V 4 1Recommended Operating Conditions Table 7 Recommended Operating Conditions Operating Condition Symbol Min Typ Max Unit Operating Temperature 40 20 125 Supply voltage VDD...

Page 14: ...mmand set contains four types of AT commands Notes 1 Not all AT Command has four commands 2 default value not required or may not appear 3 String values require double quotation marks for example AT C...

Page 15: ...ual Shenzhen Ai Thinker Technology Co Ltd http www ai thinker com 13 Table9 basic AT commands AT Test AT startup The type of this command is executed It s used to test the setup function of your wirel...

Page 16: ...GMR View version info This AT command is used to check the version of AT commands and SDK that you are using the type of which is executed AT GSLP Enter deep sleep mode This command is used to invoke...

Page 17: ...ameters are possible The command returns OK in normal cases and ERROR when a parameter other than 0 or 1 was specified AT RESTORE Factory reset This command is used to reset all parameters saved in fl...

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