i2c application

[Yano]

Hi, First I'm new to these devices and BLE in general. I am however very experienced at embedded design and Keil tools and ARM processors. I have got the demo heart beat demo going. I have seen the twi demo code.

Application: I want to read an i2c device at 100hz 8 bytes at a time. I don't think that should be too difficult.

But I want to transmit it to a custom PC application. Are there any demos I can see/modify? Can the BLE transmission be picked up by a PC (2014 Macbook pro) or does it need the dongle? How can I get the data read into an application (planning on using MS VS C#).

Thanks

Ian

[cocoa]

Hi,

mac book pro 2014 has Bluetooth Low Energy communication interface built in, no dongle is needed to connect to a BLE device.

Mac Xcode has a native BLE support and framework to develop apps.

-c

[Yano]

Thanks cocoa, do you know if there are any OSX Xcode examples?

[cocoa]

There are examples and guides at https://developer.apple.com (OS X and iOS examples, under corebluetooth ) in member center.

[cocoa]

If you want an app to test your software on iOS or simulate BLE hardware try this : itunes.apple.com/.../id557428110 , if link is broken goto itunes and search for lightblue

[Yano]

Thanks again cocoa. I have read a good bit and gone through some of the example code. To start with I want to try to send 8 bytes of data on a continuous basis and try to pick up the service using the app you gave me the link for. Once I have this working I will add i2c reading and eventually some Xcode (well that's the plan).

Rather than writing from scratch I was going to modify some example code. Which example would you recommend using or is there a better way? Thanks

[cocoa]

Hi Yano, you can write a custom service to expose a characteristic . The characteristic value will be your 8 bytes data. If you need a connection like a serial port look at Path : /sdk/nrf51_sdk_v6_0_0_43681/nrf51822/Board/pca10001/s110/experimental/ble_app_uart. A custom service example is in Nordic github github.com/.../nrf51-ble-app-lbs .