Communicate with two Nrf51822

[YEN]

I want to Communicate with two Nrf51822 device

The slave (S110 SDK6.1) will do a echo function . For example Get uart data and will send out same data but over BLE. And get data by BLE will send it out over UART.It tested by mobile,it's ok.

And I try to use the master Nrf51822 device to do the same thing, let two devices Communicate. (s120 nrf51_2.1 SDK 9.0 ) I use the project in the SDK .

C:\Keil_v5\ARM\Device\nRF51_SDK_9.0.0_2e23562\examples
ble_central\ble_app_multilink_central\pca10028\s120\arm5_no_packs

I Can let two devices's BLE connected .(Use LED to show it's connected or not ). But I don't know how to send data from Master to the Slave over BLE.

My question is,it's there a function or command that can do the thing i want? Send data from Master to Slave by BLE?

Please,if anyone have some direction or suggestion please let me know. Thank you.

[Petter Myhre]

Have a look at this example.

More specifically the ble_uart_c_write_string() function.

[YEN]

Thank you. Is it possible that use the example you provided to connect two or more slave devices? I tried edit the

DEVICE_MANAGER_MAX_APPLICATIONS

DEVICE_MANAGER_MAX_CONNECTIONS

But it is no use. Only can one slave to be connected. And the master goes to error 0x11. Should I edit the slave UUID?If yes where can i edit? It's there relationship the UUID between the devicename? Thank you again.