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DFRobot BLE4.1 Module SKU: TEL0120

Introduction

BLE4.1 Module is DFRobot newly developed Bluetooth 4.1 transmission module, adhering to the

same usage of Bluno, and increasing the star network function, KISS connection (Approach

Connection). The new Bluetooth is designed based on BLE 4.1 technology. It has low power

consumption and other special features. In the BLE transmission, the point-to-point output rate is

4Kbps, equivalent to the original Bluno twice the rate.

BLE4.1 Module uses DA14681 high-performance BLE chip, it integrates advanced power

management system, coming with 3.7V lithium battery charging circuit. It obtains power directly from

the USB port. Support 400mA maximum charge current,

Feature

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Support BLE 4.1 master and slave switch

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Support Bluetooth serial data transmission

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Support Bluetooth point-to-point wireless programming

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Support Bluetooth 4.1 multi-device cascade (up to 4)

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Support Arduino Bluetooth library (support for multi-Bluetooth connection)

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Support low power consumption Bluetooth (standby 25uA; interrupt 70uA)



Two-way interrupt wake up:



* BLE4.1 wake up controller via P4_2 (high level wake up)

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* The controller wakes up BLE4.1 via WAKEUP (low level wake)



Support KISS connection method (Approach Connection)

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Support Bluetooth firmware update

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Support lithium battery powered



Support USB to charge the lithium battery

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LED status indicator