EC40 BLE Serial Data Breakout Board (Slave, CC2540)

Features:

• Supports bridging mode (passthrough)
• Max transfer rates up to 6 Kbps
• Ultra low-power communications
  • TX Current ≤ 0.5 mA
  • RX Current ≤ 0.5 mA
• Low standby power: 0.3-0.4 µA
• Supports Apple iPhone 4S, iPad 3, iPad 4 and later models
• Supports Android 4.3 mobile phones with BLE feature
• Size: 1.5 x 1.1 cm
• On-board logic shifter and LDO to support 3.3V and 5V power supply and communication.

Power consumption:

• Sleep mode: 0.3 µA
• Broadcast (20ms cycle): 0.15-1.01 mA
• Connection status (20ms interval): 2.06 mA
• BRTS low-emission state: 8.74 mA

Wiring (Standard 2.54mm pitch):

• 3.3V ——— 3.3V
• GND ——— GND
• TX ———– RXD
• RX ———– TXD
• EN ———– connected to an IO pin or directly to GND
• BRTS ——– connected to an IO pin or directly to GND