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 Eason wireless module

AT-WiFi YL-8266A

Chip solution : see the specification for details
carrier frequency :2.4GHz
Transmitting power :802.11 b:20dBm
Communication distance : see the specification for details
Product size :12mm*17.8mm*3mm
communication interface : TTL / WiFi protocol transmission
Product introduction Yl-8266a is a WiFi standard module with high performance, low power consumption and low cost. It has TCP / IP protocol stack and 802.11b/g/n wireless protocol. Customers do not need to understand the complex underlying protocol, only need to understand the simple at command, they can make their devices easily connected to the Internet. Remote operation and monitoring are realized. Yl-8266a is a module of serial port signal conversion WiFi signal, which can realize serial port transparent transmission function, serial port and application layer software transparent transmission function, serial port and mobile phone app software transparent transmission function.

Product overview
Yl-8266a is a WiFi standard module with high performance, low power consumption and low cost. It has TCP / IP protocol stack and 802.11b/g/n wireless protocol. Customers do not need to understand the complex underlying protocol, only need to understand the simple at command, they can make their devices easily connected to the Internet. Remote operation and monitoring are realized. Yl-8266a is a module of serial port signal conversion WiFi signal, which can realize serial port transparent transmission function, serial port and application layer software transparent transmission function, serial port and mobile phone app software transparent transmission function.


technical parameter Parameter value
Wireless mode WiFi protocol transmission
working frequency 2.4GHz
Transmitting power 802.11 b:20dBm 802.11 g:17dBm 802.11 n:14dBm
Receiving sensitivity 802.11 b:(11Mdps) -91db;
802.11 g:(54Mdps) -75db;
802.11 n:(MCS7) -72db
Series Rate 9600bps ~ 921600bps (default 115200bps)
Interface verification 8 N 1
working voltage 3.0~3.3V
Emission current 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb, 11mb
Receiving current ≤ 50mA (receiving 802.11b, packet length 1024 bytes, - 80dbm)
Off Mode ≤5uA
working temperature -40 ~ + 80 ℃ (industrial grade)
Working humidity 10% - 90% relative humidity, no condensation
 

Pin definition and Description:

Serial number name Pin definition
one VCC Power input 2.1-3.6v
two GPIO4 Digital I / 0 port
three GPIO0 Digital I / 0 port
four GPIO2 Digital I / 0 port
five MTDO Mode switch pin (3)
six GND Power anchor
seven GPIO13 Digital I / 0 port
eight GPIO5 Digital I / 0 port
nine RXD Serial receiving pin
ten GND Power anchor
eleven TXD Serial port sending pin
twelve RST Reset pin
thirteen ADC ADC sampling pin, input only
fourteen EN Chip enable pin
fifteen SLEEP Sleep pin, 1: work, 0: sleep
sixteen GPIO12 Digital I / 0 port
seventeen GPIO14 Digital I / 0 port
eighteen GND Power anchor
Note: MTDO pin is switched by mode, mainly burning mode and normal mode. In this way, gpiodo can be burned in gpio2:0 mode.


Download category Download link
Product description At WiFi yl-8266a product manual
Software Yl-8266a configuration tool


application area product
Smart home Wireless switch, intelligent light bulb, home appliance control, intelligent lock
Handheld devices Order machine, hand copy machine, scanning gun, walkie talkie
Data transmission Electronic Kanban, LED display, oil price screen, supermarket shelf label
data acquisition Electronic weighing instrument, grain situation measurement and control, hydrology and water conservancy monitoring
Security system Wireless alarm, electronic fence, camera pan tilt control
smart city Building energy saving, HVAC control, manhole cover anti-theft monitoring, roadside or parking lot management
Medical management Elderly pager, infant monitor, medical equipment and instrument monitoring
Conference equipment Voting device, scoring evaluation device, answering device, wireless speaker
Wireless sensor Temperature, humidity, pressure, liquid level, vibration and other wireless sensors
Wearable devices Watch, dog ring, eartag, badge, pendant