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,
BLE 4.1 Bluetooth P2P Connection
BLE 4.1 Bluetooth Star Network Connection
|Features|Support BLE 4.1 master and slave switchSupport Bluetooth serial data transmissionSupport Bluetooth point-to-point wireless programmingSupport Bluetooth 4.1 multi-device cascade (up to 4) Support Arduino Bluetooth library (support for multi-Bluetooth connection) 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) The controller wakes up BLE4.1 via WAKEUP (low level wake) Support KISS connection method (Approach Connection) Support Bluetooth firmware updateSupport lithium battery poweredSupport USB to charge the lithium batteryLED status indicator
|Specification|Processor: DA14681 (ARM Cortex-M0 CPU) Operating Voltage: 3.3VUSB input Voltage: 4.2V ~ 5.0VLithium battery powered: 3.7VSupport USB charging (chip comes with charging function) Charging current: 10mA ~ 400mA (max) Allow external lithium battery capacity: 20mAh ~ 500mAh (max) Supports low power consumption: only 30uA / MHz minimum 2uASingle I / O port maximum output current: 4.5mAAllows I / O port maximum output total current: 100mASupports three network connection modes (P2P connection, star network, tree network [Developing]) Maximum number of slave connections: 4 (simultaneous connection) Maximum transfer rate of 4KbpsFlash: 8Mbit64KB OTP128KB Data SRAM16KB Cache SRAM128KB ROMOn-chip crystal: 16MHz, 32.768KHzThree power management modes: Extended sleep, Deep sleep, Hibernation29 digital I / O ports8 analog inputs1 SPI2 I2C (supports 100KHz and 400KHz two communication rates) 2 UARTs6 PWMI2S / PCM master-slave interfaceIR interface (PWM) Support USB1.1 (computer-side simulation into a serial port) Built-in temperature sensorTransmit power consumption: 3.4mA (TX) 3.1mA (RX) Operating temperature: -40 ? ~ +85 ?Dimension: 25 * 18 * 3 mm/ 0.98 * .70 * 0.11 inches
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|ShippingList|DFRobot BLE4.1 Module V1.0 x1