nRF51822 UART interfacing and HID over GATT

[ven]

Dear Nordic Team,

I am currently working on a project to develop firmware for S110 nRF51822 softdevice with the following requirements.

• Read ASCII chars from a third party hardware over UART
• Send these chars using HID over GATT from nRF51822 to IPAD or other Bluetooth devices.

I am new to nRF51 SDK and I am struggling with following questions.

1. how do I receive chars from UART

2. how do I sent these chars from UART to HID over GATT.

I have seen the following examples but not sure which one to use.

1. UART/Serial Port Emulation over BLE

or

2. HID Keyboard Application

are there any other examples available.

Please guide me in understating how to solve this.

Kind regards,

Ven

[Hung Bui]

@Ven:

1. You should start first with interfacing the nRF51 with your third party hardware over UART. Keep the Softdevice aside. You can try first with the SDKv8.1\examples\peripheral\uart project.

2. After you have managed to receive the chars from UART you can start integrate it to the keyboard example we provided. The current example sending "h e l l o" text when a button is pressed, you can modify this to send the char you receive.

[Hung Bui]

@ven: no you don't need HID, you can have a look at the ble_app_uart example we have. We also have nRF UART app, as well as UART profile in our nRF Toolbox app.