The Arduino WiFi Shield 101 allows an Arduino or Genuino board to connect to the internet using the IEEE 802.11 wireless specifications (WiFi). It is based on the Atmel SmartConnect-WINC1500 module, compliant with the IEEE 802.11 b/g/n standard. The WINC1500 module provided is a network controller capable of both TCP and UDP protocols. Use the WiFI library to write sketches which connect to the internet using the shield. The WiFI shield connects to an Arduino or Genuino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top.
The Wifi Shield 101 also features an hardware encryption/decryption security protocol provided by the ATECC508A CryptoAuthentication chip that is an ultra secure method to provide key agreement for encryption/decryption, specifically designed for the IoT market.
Digital pin 7 is used as a handshake pin between the WiFi Shield 101 and the board, and should not be used.
OSH: Schematics
Arduino WiFi Shield 101 is open-source hardware! You can build your own board using the following files:
On-board Interfaces
The header marked as TX/RX allows the connection to the board's hardware serial, when shorted. It can be used to upgrade the WiFi module FW through the Arduino or Genuino board.
On-board Indicators
The shield contains a number of signalling LEDs:
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ON (green) : indicates that the shield is properly powered
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WIFI (green) : indicates a connection to a network
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ERROR (red) : indicates when there is a communication error
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NETWORK (yellow) : indicates that data is received/transmitted