Migrate docs from the other repo

docs/reference/input/pin-is-pressed.md

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+# Pin Is Pressed
+
+Gets the pin state (pressed or not pressed), by detecting when the user holds the `GND` pin with one hand, and presses pin `0`, `1`, or `2` with the other hand, thus completing a circuit.
+
+*Note* that this function works best when the BBC micro:bit is powered by AAA battery.
+
+```sig
+input.pinIsPressed(TouchPin.P0);
+```
+
+### Parameters
+
+* name - [String](/microbit/reference/types/string); the pin name ("P0", "P1", or "P2")
+
+### returns
+
+* [Boolean](/microbit/reference/types/boolean) - `true` if pressed, `false` if not pressed
+
+### Example
+
+This example displays 1 if P0 is pressed, and 0 if P0 is not pressed:
+
+```blocks
+basic.forever(() => {
+    if (input.pinIsPressed(TouchPin.P0)) {
+        basic.showNumber(1, 150)
+    } else {
+        basic.showNumber(0, 150)
+    }
+})
+```
+
+### See also
+
+[BBC micro:bit pins](/microbit/device/pins), [on pin pressed](/microbit/input/on-pin-pressed), [analog read pin](/microbit/reference/pins/analog-read-pin), [analog write pin](/microbit/reference/pins/analog-write-pin), [digital read pin](/microbit/reference/pins/digital-read-pin), [digital write pin](/microbit/reference/pins/digital-write-pin)
+