ESP-12 (ESP8266) wireless WIFI transceiver View larger

ESP-12 (ESP8266) wireless WIFI transceiver

HCMODU0077

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This amazingly priced wireless module allows any microcontroller to connect to a 802.11b/g/n wireless network. This in turn provides your microcontroller project with the ability or request data from a server anywhere in the word via a suitable WiFI connection.

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£ 3.99

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This amazingly priced wireless module allows any microcontroller to connect to a 802.11b/g/n wireless network. This in turn provides your microcontroller project with the ability or request data from a server anywhere in the word via a suitable WiFI connection. Control of the module couldn't be simpler as it comes pre-flashed with a serial application allowing it to be controlled via simple 'AT' serial (9600 baud default) commands. 

Please Note: This module operates at 3.3V only. If interfacing to a 5V microcontroller level shifters should be used.


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SKU: HCMODU0077
Module: ESP-12
Device: ESP8266MOD
Frequency: (ISM): 2.4GHz
Power: +25dBm
Supported Wifi: 802.11 b/g/n
Operating voltage: 3.3V
Min Current (Sleep): 10mA
Max current (connected to 802.11b network): 215mA

VCC.........3.3V
GND........0V
CH_PD.....Power down pin. Connect to 3.3V for normal operation

Additionally to configure the module to accept AT commands you should connect the following pins to GND/VCC

GPIO0......VCC (HIGH)
GPIO2......VCC (HIGH)
GPIO15....GND (LOW)

AT Commands, examples available on our support forum here.

To see our 3-part blog post "Access your micrcontroller from anywhere in the world for a few pounds", which uses this module, click here.

For suitable header pins, please see this item.

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