https://devzone.nordicsemi.com/f/nordic-q-a/22159/using-softdevice-without-sdkHi, We&#39;re contemplating using the SoftDevice without using the Nordic SDK. We feel the SDK bloats our code when all we need is some simple GPIO, I2C communication and BLE. We have written drivers for those in other platforms (AVRs), so we&#39;re familiaren-USTelligent Community 13Thu, 18 May 2017 09:08:05 GMThttps://devzone.nordicsemi.com/thread/87100?ContentTypeID=1Thu, 18 May 2017 09:08:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f19f14e0-c382-4e0a-a9c8-2dfbb3f8c018obbe<p>Perfect - exactly what I was looking for. (Apologies for the duplicate posting)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/87099?ContentTypeID=1Thu, 18 May 2017 09:04:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d36a6f00-b9f0-4e62-9a28-3e4bc6ca248cJ&#248;rgen Holmefjord<p>Hi,</p> <p>You can find the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.softdevices52/dita/softdevices/s130/s130api.html?cp=2_3_0_1">softdevice API documentation</a> in the infocenter. The required header files are available in the softdevice download. It is not a problem using the softdevice without the SDK, but it might be a bit more time consuming to get it working. Also, see <a href="https://devzone.nordicsemi.com/question/48401/using-softdevice-directly-without-sdk-libraries/?answer=48403#post-id-48403">this post</a> which provide some more information.</p> <p>Best regards,</p> <p>Jørgen</p><div style="clear:both;"></div>