Features

 Support Arduino IDE program

 Support BLE 4.1 central and peripheral switch

 Support Bluetooth serial port data transmit

 Support Bluetooth peer to peer (P2P) wireless programming

 Support Bluetooth 4.1 multiple device cascade (maximum:4)

 Support Arduino Bluetooth library (support multiple Bluetooth connection)

 Support low power consumption Bluetooth (standby current: 25uA; enabled interrupt current: 70uA)

 Double interruption to wake up:

BLE4.1 awake Atmage328P by D2 (high level awake)

Atmage328P awake BLE4.1 by D3 (low level awake)

 Support KISS connection(approach connection)

 Support Bluetooth firmware update

 Support USB charge

 Support lithium battery power supply

 Equipped with status LEDs