ESP8266 ESP-12F WiFi Transceiver Module with Adapter
SKU SER00183
Hersteller EspressIf
Nicht auf Lager
ss Alter Preis: 10,95 €
9,95 €

Endpreis*, zzgl. Versand



ESP8266 ESP-12 offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.

When ESP8266 hosts the application, and when it is the only application processor in the device, it is able to boot up directly from an external flash. It has integrated cache to improve the performance of the system in such applications, and to minimize the memory requirements.

Alternately, serving as a Wi-Fi adapter, wireless internet access can be added to any microcontroller-based design with simple connectivity through UART interface or the CPU AHB bridge interface.

ESP8266 on-board processing and storage capabilities allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. With its high degree of on-chip integration, which includes the antenna switch balun, power management converters, it requires minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

Sophisticated system-level features include fast sleep/wake context switching for energy-efficient VoIP, adaptive radio biasing for low-power operation, advance signal processing, and spur cancellation and radio co-existence features for common cellular, Bluetooth, DDR, LVDS, LCD interference mitigation.


  • 802.11 b/g/n protocol
  • Wi-Fi Direct (P2P), soft-AP
  • Integrated TCP/IP protocol stack
  • Integrated TR switch, balun, LNA, power amplifier and matching network
  • Integrated PLL, regulators, and power management units
  • +19.5dBm output power in 802.11b mode
  • Integrated temperature sensor
  • Supports antenna diversity
  • Power down leakage current of
  • Integrated low power 32-bit CPU could be used as application processor
  • SDIO 2.0, SPI, UART
  • STBC, 1_1 MIMO, 2_1 MIMO
  • A-MPDU & A-MSDU aggregation & 0.4?s guard interval
  • Wake up and transmit packets in
  • Standby power consumption of

Application Notes

  • Smart power plugs
  • Home automation
  • Mesh network
  • Industrial wireless control
  • Baby monitors
  • IP Cameras
  • Sensor networks
  • Wearable electronics
  • Wi-Fi location-aware devices
  • Security ID tags
  • Wi-Fi position system beacons


Electronic Characteristics

1.Current Consumption

The following current consumption is based on 3.3V supply, and 25¡C ambient, using internal regulators. Measurements are done at antenna port without SAW filter. All the transmitter’s measurements are based on 90% duty cycle, continuous transmit mode.

Mode Typ Unit
Transmit 802.11b, CCK 1Mbps, POUT=+19.5dBm 215 mA
Transmit 802.11b, CCK 11Mbps, POUT=+18.5dBm 197 mA
Transmit 802.11g, OFDM 54Mbps, POUT =+16dBm 145 mA
Transmit 802.11n, MCS7, POUT=+14dBm 135 mA
Receive 802.11b, packet length=1024 byte, -80dBm 60 mA
Receive 802.11g, packet length=1024 byte, -70dBm 60 mA
Receive 802.11n, packet length=1024 byte, -65dBm 62 mA
Standby 0.9 mA
Deep sleep 10 uA
Power save mode DTIM 1 1.2 mA
Power save mode DTIM 3 0.86 mA
Total shutdown 0.5 uA

2.RF Performance

The following are measured under room temperature conditions with 3.3V and 1.1V power supplies.

Description Min Typical Max Unit
Input frequency 2412 2484 MHz
Input impedance 50 O
Input reflection -10 dB
Output power of PA for 72.2Mbps 14 15 16 dBm
Output power of PA for 11b mode 17.5 18.5 19.5 dBm
CCK, 1Mbps -98 dBm
CCK, 11Mbps -91 dBm
6Mbps (1/2 BPSK) -93 dBm
54Mbps (3/4 64-QAM) -75 dBm
HT20, MCS7 (65Mbps, 72.2Mbps) -71 dBm

AT Commands


  • Baud rate at 57600
  • x is the commands
Set Inquiry Test Execute
AT+= AT+? AT+=? AT+
Set the network mode Check current mode Return which modes supported -


  • carefully there are must be no any spaces between the " and IP address or port
Commands Description Type Set/Execute Inquiry test Parameters and Examples
AT general test basic - - - -
AT+RST restart the module basic - - - -
AT+GMR check firmware version basic - - - -
AT+CWMODE wifi mode wifi AT+CWMODE= AT+CWMODE? AT+CWMODE=? 1= Sta, 2= AP, 3=both, Sta is the default mode of router, AP is a normal mode for devices
AT+CWJAP join the AP wifi AT+ CWJAP =, AT+ CWJAP? - ssid = ssid, pwd = wifi password
AT+CWLAP list the AP wifi AT+CWLAP
AT+CWQAP quit the AP wifi AT+CWQAP - AT+CWQAP=?
AT+ CWSAP set the parameters of AP wifi AT+ CWSAP= ,,, AT+ CWSAP? ssid, pwd, chl = channel, ecn = encryption; eg. Connect to your router: AT+CWJAP="","helloworld"; and check if connected: AT+CWJAP?
AT+CWLIF check join devices' IP wifi AT+CWLIF - -
AT+ CIPSTATUS get the connection status TCP/IP AT+ CIPSTATUS ,,,,= client or server mode
AT+CIPSTART set up TCP or UDP connection TCP/IP 1)single connection (+CIPMUX=0) AT+CIPSTART= ,,; 2) multiple connection (+CIPMUX=1) AT+CIPSTART= ,, - AT+CIPSTART=? id = 0-4, type = TCP/UDP, addr = IP address, port= port; eg. Connect to another TCP server, set multiple connection first: AT+CIPMUX=1; connect: AT+CIPSTART=4,"TCP","X1.X2.X3.X4",9999
AT+CIPMODE set data transmission mode TCP/IP AT+CIPMODE= AT+CIPSEND? 0 not data mode, 1 data mode; return "Link is builded"
AT+CIPSEND send data TCP/IP 1)single connection(+CIPMUX=0) AT+CIPSEND=; 2) multiple connection (+CIPMUX=1) AT+CIPSEND= , AT+CIPSEND=? eg. send data: AT+CIPSEND=4,15 and then enter the data.
AT+ CIPMUX set mutiple connection TCP/IP AT+ CIPMUX= AT+ CIPMUX? 0 for single connection 1 for multiple connection
AT+ CIPSERVER set as server TCP/IP AT+ CIPSERVER= [, ] mode 0 to close server mode, mode 1 to open; port = port; eg. turn on as a TCP server: AT+CIPSERVER=1,8888, check the self server IP address: AT+CIFSR=?
AT+ CIPSTO Set the server timeout AT+CIPSTO= AT+CIPSTO?
+IPD received data For Single Connection mode(CIPMUX=0): + IPD, :
For Multi Connection mode(CIPMUX=1): + IPD, , :


Upgrading ESP8266 Firmware

We provide a ESP8266 firmware upgrading tools here. Please download and install it in your computer. You should pay attention that this software isÊchinese versionÊand it only runs on Windows environment.

ESP8266 firmware upgrading

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