WiFi Shield V3 For Arduino RPSMA (802.11b/g/n)

1. Usage Example for Arduino-Sleep Mode Test

The article delves into using Arduino's sleep mode, providing detailed sample code and guidance on optimizing power efficiency through effective testing and implementation.

2. Configuration Guide

Specification

Parameter	Details
Working voltage	5V
Frequency range	2.4 - 2.497GHz
Output power	16dBm
Transmission rate	54Mbps - 1Mbps
Transmission distance	<150M
Size	55mm×53mm×11mm
Weight	about 40g
Support IEEE standards	802.11b/g/n
Supported modes	AP, Client, Gateway and UART to WLAN mode and so on
IP configuration	Support DHCP, automatic access to IP; Support allocating IP to slave device in AP mode
Network protocols	TCP/UDP/ARP/ICMP/HTTP/DNS/DHCP
Optional working mode	TCP Server/TCP Client/UDP; Support up to 32 Client in TCP Server mode
WIFI encryption	Support most of WIFI encryption algorithm: WEP/WAP-PSK/WAP2-PSK/WAPI; Type of encryption: WEP64/WEP128/TKIP/AES
Data transmission	Support transparent UART/protocol data transmission mode; Up to 1M cache space; Highest baud rate: 460800bps
Applications	Support UART(TTL) to wireless applications
Factory reset	Drag down the level of the Reload IO pin for 3 seconds, you can restore factory settings. So do not worry about the wrong settings.
Working modes	Support running in AP mode and the node (Station) mode; The real hardware AP, so Android can directly access it.
Configuration methods	Provide AT command configuration; Provide the friendly web configuration page, and can be configured by webpage
Serial settings	Serial frame delay and the amount of data can be set.
Network architecture	Support routing/bridge mode network architecture
Compatibility	Designed by standard Arduino stack, and can be easily put on the standard Arduino, MEGA, Romeo board or shield

Pinout

LED indicator:

Power: Power supply OK
Link: Connected to the WiFi network completed
Ready: Initialization completed

Buttons on the shield:

RST: Reset the Arduino controller
Reload: When press it down more than 3 seconds and loosen it,the WIFI shield will restore factory settings.

Switches on the shield:

Arduino: Establish the communication between WIFI shield and Arduino
Programme: Disconnect the communication between WIFI shield and Arduino
USB: Establish the communication between WIFI shield and the USB interface, which can be directly send and receive data from the USB interface.

Jumpers on the shield:

D11 Sleep_RQ ：Jump to D11 pin，dormancy control input of the WIFI shield.When in the normal working state, set it to low level, and after 5 seconds,set it to high level, the WIFI shield will enter a state of dormancy;When in the dormancy state, set it to low level, and after 2 seconds,set it to high level,the WIFI shield will enter the normal working state.When not using this pin,jump to the other side of the D11 font.
D12 Sleep_ON ：Jump to D12 pin,dormancy state output pin of the WIFI shield.The electrical level of this pin is used to indicate working state of the shiled.When low,the shield is in sleep mode;When high,the shield is in the normal working state.When not using this pin,jump to the other side of the D12 font.