diff --git a/examples/nRF51/README.md b/examples/nRF51/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..5ce3a7b3fdfa9172b710be2db46366963a4c81dd
--- /dev/null
+++ b/examples/nRF51/README.md
@@ -0,0 +1,10 @@
+# nRF51 example project
+
+This is a Mongoose "Hello, world" that can be compiled under nRF51 IoT SDK.
+
+To make it work, you should download [nRF51 IoT SDK](http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF51-IoT-SDK)
+and unpack it in the current directory as `nrf51_iot_sdk`.
+
+The project structure replicates that of the examples provided with the SDK:
+Keil uVision project is located at `boards/pca10028/arm5_no_packs`, ARM-GCC
+Makefile is located in `boards/pca10028/armgcc`..
diff --git a/examples/nRF51/nrf51_iot_sdk/README.md b/examples/nRF51/nrf51_iot_sdk/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..ff93fb112d482c6abbcf9201bbf7d8fb3c850257
--- /dev/null
+++ b/examples/nRF51/nrf51_iot_sdk/README.md
@@ -0,0 +1 @@
+Please download the [nRF51 IoT SDK](http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF51-IoT-SDK) and unpack it into this directory.
diff --git a/examples/nRF52/nrf5_iot_sdk/README.md b/examples/nRF52/nrf5_iot_sdk/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..5d95c8ee7e5fcc76798398373177a4f4af46d329
--- /dev/null
+++ b/examples/nRF52/nrf5_iot_sdk/README.md
@@ -0,0 +1 @@
+Please download the [nRF5 IoT SDK](http://developer.nordicsemi.com/nRF5_IoT_SDK/) and unpack it into this directory.