diff --git a/src/welcome-bare-metal.md b/src/welcome-bare-metal.md
index 1652fde7..ff93f915 100644
--- a/src/welcome-bare-metal.md
+++ b/src/welcome-bare-metal.md
@@ -9,7 +9,9 @@ be divided into several parts:
  * Some useful crates for bare-metal Rust development.
 
 For the microcontroller part of the course we will use the [BBC micro:bit](https://microbit.org/) v2
-as an example. It's a development board based on the Nordic nRF51822 microcontroller.
+as an example. It's a [development board](https://tech.microbit.org/hardware/) based on the Nordic
+nRF51822 microcontroller with some LEDs and buttons, an I2C-connected accelerometer and compass, and
+an on-board SWD debugger.
 
 To get started, install some tools we'll need later: