Can I count on the button service messages?

[jeffrummer]

So I'm very new to the Nordic nRF52 and nRF5 SDK. I'm using the blinky examples as a starting point for a remote control that will drive motors. My customer's question is... "Is the connection reliable? When the user releases the button on the remote will the motor controller always get the message?" He is worried about motors that are told to start but don't get the stop message. What can I tell him about the reliability of the messages? 

[Simonr]

Hi

Yes, the nRF52 chips use Bluetooth, and are bound by the Bluetooth specifications. To maximize reliability, you can increase the transmitting power by setting TX_POWER to +4dBm if power consumption is not an issue. Of course you should not exceed the maximum range of what the specifications tell you, and you should do tests in the desired work environment you want your application to be in, to make sure there isn't any interferences between the devices. If you are designing your own device, you will have to choose a good antenna, and make sure it is properly tuned for optimized communication.

All in all, as long as you just want to send a signal from one device to another within a reasonable range the central will always get the message.

You can check out this blog entry from our own blog on more about bluetooth range. And you can find product specifications for our products, and much more in our documentation library.

Best regards,

Simon