HID (Human Interface Device) Template Example code

RE: HID (Human Interface Device) Template Example code

Feng Du — Tue, 08 Apr 2014 23:25:53 GMT

Thank you very much for your clarification.

Feng

RE: HID (Human Interface Device) Template Example code

David Edwin — Mon, 07 Apr 2014 09:54:05 GMT

Apologies for the confusion. Adding additional buttons for IO is optional is not required for the interface to work. The program will work without any additional IO. The incorrect scentence will be fixed in our next release.

RE: HID (Human Interface Device) Template Example code

Feng Du — Wed, 02 Apr 2014 02:12:47 GMT

Hi, at the beginning of the code, there is s section of comment saying ,

-# Alternatively you should be able to get the board to work directly with a iOS 7 device, Win 8/Win RT PC after adding the required buttons for I/O.

What does that mean? And additional wire needs to be done other than,

Plug the Bluetooth low energy shield to the Arduino. The REQN and RDYN pins are selectable from pin 2 to 12. Select the Arduino pins to use for REQN and RDYN and put the jumpers to those pins. Reset of the Arduino is connected to the Reset of the nRF8001, so every time a sketch is downloaded from the Arduino IDE the nRF8001 is also reset. The SPI lines are routed through the central ICSP connector of the Arduino.

Thanks a lot! Feng

RE: HID (Human Interface Device) Template Example code

Ole Morten — Mon, 10 Feb 2014 15:44:31 GMT

As the comments clearly states, the function Timer1start() starts the timer with an interval of 4 seconds.

As for the key sending, this happens from the loop() function. As you can see, it checks to see if the pipe is available, and if it is, it sends keypressA twice, first with element 2 set to 0x04 and then to 0. This is a key press and release, and the value comes from the document Universal Serial Bus HID Usage Tables, table 12. BLE HID over GATT (HoG) is more or less just a wrapping of USB HID to be transported over BLE instead of USB, and understanding USB HID is therefore important to be able to fully understand HoG.

PS: This site has code tags, which makes it much easier to read code. Please use it. Also, for so long code snippets, attaching a file is often easier.