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ESP-12S User Manual 

 

Shenzhen Ai-Thinker Technology Co., Ltd

           http://www.ai-thinker.com       

                                                                                                                                                         

 

1.

 

Preambles

 

 

ESP-12S WiFi module is developed by AI-Thinker Co.,Ltd, core processor ESP8266 in smaller sizes of the module 

encapsulates Tensilica L106 integrates industry-leading ultra low power 32-bit MCU micro, with the 16-bit short mode, 
clock speed support 80 MHz, 160 MHz, supports the RTOS, integrated Wi-Fi MAC/BB/RF/PA/LNA, on-board antennas. 

The module supports standard IEEE802.11 b/g/n agreement, complete TCP/IP protocol stack. Users can use the 

add modules to an existing device networking, or building a separate network controller.

 

ESP8266 is high integration wireless SOCs, designed for space and power constrained mobile platform designers. 

It provides unsurpassed ability to embed Wi-Fi capabilities within other systems, or to function as a standalone 
application, with the lowest cost, and minimal space requirement. 

 

 

Figure 1      ESP8266EX Functional Block Diagram 

ESP8266EX 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 the application, it boots up directly from an external flash. In has integrated cache to 

improve the performance of the system in such applications. 

Alternately, serving as a Wi-Fi adapter, wireless internet access can be added to any micro controllerbased design 

with simple connectivity (SPI/SDIO or I2C/UART interface). 

ESP8266EX is among the most integrated WiFi chip in the industry; it integrates the antenna switches, RF balun, 

power amplifier, low noise receive amplifier, filters, power management modules, it requires minimal external circuitry, 
and the entire solution, including front-end module, is designed to occupy minimal PCB area. 

ESP8266EX also integrates an enhanced version of Tensilica’s L106 Diamond series 32-bit processor, with on-chip 

SRAM, besides the Wi-Fi functionalities. ESP8266EX is often integrated with external sensors and other application 
specific devices through its GPIOs; codes for such applications are provided in examples in the SDK. 

Содержание ESP-12S

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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