Merge pull request #373 from Microsoft/book

examples from chapter 1.

docs/fcp.md

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+# Foundations of Computing and Programming: exploring the micro:bit
+
+This page provides examples from the book "Foundations of Computing and Programming: exploring the micro:bit".
+
+* [Chapter 1: Introduction](fcp/ch1)

docs/fcp/ch1.md

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+# Chapter 1 
+
+Here are the code examples from Chapter 1 
+of [Foundations of Computing and Programming: exploring the micro:bit](../fcp).
+You can switch between the Blocks and JavaScript versions of each example,
+as well as run the example in the web browser, and retrieve a file to
+install on a micro:bit.
+
+## Figure 1.11
+LED Screen with code:
+```blocks
+basic.showIcon(IconNames.Square)
+led.plot(2, 2)
+```
+
+## Figure 1.12
+
+Take action on button A/B pressed.
+```blocks
+input.onButtonPressed(Button.A, () => {
+    basic.showIcon(IconNames.Square)
+})
+input.onButtonPressed(Button.B, () => {
+    led.plot(2, 2)
+})
+```
+
+## Figure 1.13
+
+Take action on button A/B pressed, as
+well as shaking the micro:bit.
+```blocks
+input.onButtonPressed(Button.A, () => {
+    basic.showIcon(IconNames.Square)
+})
+input.onButtonPressed(Button.B, () => {
+    led.plot(2, 2)
+})
+input.onGesture(Gesture.Shake, () => {
+    basic.clearScreen()
+}) 
+```
+
+## Figure 1.15
+
+Program to send signals over pin P0.
+```blocks
+basic.forever(() => {
+    pins.digitalWritePin(DigitalPin.P0, 1)
+    basic.pause(1000)
+    pins.servoWritePin(AnalogPin.P0, 180)
+    basic.pause(1000)
+})
+```
+
+## Figure 1.17
+
+Communicating using radio.
+```blocks
+input.onButtonPressed(Button.A, () => {
+    radio.sendString("A")
+})
+input.onButtonPressed(Button.B, () => {
+    radio.sendString("B")
+})
+radio.onDataPacketReceived(({receivedString}) => {
+    basic.showString(receivedString)
+})
+```