more docs

docs/device/simulator.md

@@ -0,0 +1,25 @@
+# Simulator
+
+The JavaScript simulator allows to test and execute most BBC micro:bit programs in the browser.
+It allows to emulate sensor data or user interactions.
+
+```sim
+input.onButtonPressed(Button.A, () => {
+   basic.showString("A");
+});
+input.onButtonPressed(Button.B, () => {
+   basic.showString("B");
+});
+input.onPinPressed(TouchPin.P0, () => {
+   basic.showString("0");
+});
+input.onPinPressed(TouchPin.P1, () => {
+   basic.showString("1");
+});
+input.onPinPressed(TouchPin.P2, () => {
+   basic.showString("2");
+});
+input.temperature()
+input.compassHeading()
+input.lightLevel()
+```