I am developing a BLE remote which will work with Android and iOS(as a remote shutter for camera). I used nRF's HID keyboard example as a base but it does not have volume control. I found this on GitHub but it is based on SDK 9, so it works with the older device manager and doesn't have peer manager.
Can you point me to some resource which will help be build a HID keyboard with volume control?
nRF51822, S130, SDK12