• Onboard battery holder, multi power supplies are available
• All the IOs are accessible for easy expansion
• Integrates CP2102 for debugging
• LEDs and user keys, compatible with other official boards, easy to use

What's on the BLE400

1.Wireless module connector: for easily connecting modules like Core51822

2.MCU pins expansion connector

3.I2C interface

4.SPI interface

5.5V/3.3V power input/output: usually used as power output, also common-grounding with other user board

6.USB connector: USB TO UART via onboard convertor CP2102

7.Debugging interface

8.UART interface

9.Battery holder

10.User LEDs

11.User keys

12.Reset button

13.CP2102

14.USB TO UART jumper

15.LEDs & Keys jumper

BLE400 Dimension

Photos

BLE400 Bluetooth 2.4G RF mother board

BLE400 Bluetooth 2.4G RF mother board back view

Connecting with the wireless module

Connecting with various accessories

Note: module and accessories in the photos are NOT included in the price.

Documents : 

• Wiki

Package Includes : 

• 1 x BLE400 
• 1 x USB type A to Mini-B cable