Need genral guidance on radio devicehttps://devzone.nordicsemi.com/f/nordic-q-a/25960/need-genral-guidance-on-radio-deviceI need a cheap 2 or 3 button fob or itag to connect to/control my NRF51 firmware. So far I only could find &quot;AB Shutter 3&quot; as input device with &gt;1 button but it is using Bluetooth V3. I&#39;m considering adding the necessary subset of Bluetooth V3 processingen-USTelligent Community 13Mon, 16 Oct 2017 19:33:41 GMTRE: Need genral guidance on radio devicehttps://devzone.nordicsemi.com/thread/102274?ContentTypeID=1Mon, 16 Oct 2017 19:33:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb8cc395-acfd-47fa-8179-b27ebb343e23robscott<p>Thankls for your quick answer. I was in doubt because the Nordic doc said &quot;The 2.4 GHz radio transceiver is compatible with multiple radio standards, such as 1 Mbps and 2 Mbps Bluetooth low energy, as well as Nordic&#39;s proprietary 1 Mbps and 2 Mbps modes of operation.&quot;</p> <p>Looking into it I see there are differences at the physical layer between ble and classic bluetooth which I cannot get around even bypassing the softdevice.</p><div style="clear:both;"></div>RE: Need genral guidance on radio devicehttps://devzone.nordicsemi.com/thread/102273?ContentTypeID=1Sun, 15 Oct 2017 02:33:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:305ef167-9ff7-4da0-b0aa-0b2e6be10a6dRK<p>You can&#39;t add support for Bluetooth V3, that&#39;s original Bluetooth, not Bluetooth Low Energy which started at V4. So the hardware doesn&#39;t even support it, Nordic chips are BLE only. So you&#39;re going to need to find another button product, or build one yourself.</p><div style="clear:both;"></div>