CC2540 BLE Shield v1.0 Bluetooth V4.0 Expansion Board for Arduino

BLE Shield v1.0 is a low power Bluetooth 4.0 transmission module. The module adopts TI CC2540 chip to dispose 256Kb space, support AT order. You can use this module for remote control, game controllers, wireless data acquisition, smart home and more. One of the Shield series at the same time, using the online development board is easy. ? feature HM-11: We use the Bluetooth low energy module HM-11 module, please click the link to enter the HM-11 wiki to check. Beacon: Connection status indicator flashes at a frequency of about 1 second for each indicator not connected, and lit when linked. Jigsaw Connector: The Duinofun BLE Shield v1 Jigsaw Puzzle has two interfaces for user-friendly product line puzzle. Hard or soft serial port: Users can choose a different port as the port number to skip this limit. HM-11 Retentive Pins: These pins output the retention pin module HM-11, allowing for very fast soldering when needed by the user for ease of use. Reset button: Reset button, press to reset the HM-11 module. And press the reset button BLE Shield does not affect the status of the development board. ? ? parameter ? Working frequency: 2.4GHz ISM band Modulation method: GFSK Transmit power: -23dbm, -6dbm, 0dbm, 6dbm (through the AT command selection) Sensitivity: ≤-84dBm, 0.1% BER Transmission rate: Asynchronous: 6K bytes, synchronization: 6K bytes Support services: central and surrounding UUID FFE0, FFE1 Power consumption: Operating current is less than 15mA, search current is less than 30mA, sleep mode is less than 3mA Power: 5V DC Operating temperature: -5 ~ +65 ℃ Communication distance: The maximum theoretical value of 100m Size: 68mm x 43mm