BLE 1host 8device application need to use which example?

[paul]

BLE 1 host(send UART data to computer) 8 device Which example can do it?

[Petter Myhre]

The central S120 SoftDevice can handle connections to 8 peripherals. The central examples can be found in \examples\ble_central in the SDK. The nRF51 Series has UART support.

I recommend to look at ble_app_hrs_c used with ble_app_hrs, or ble_app_multilink_central used with ble_app_multilink_peripheral.