Add initial documentation

Author: sandeepmistry

API.md

@@ -0,0 +1,131 @@
+# LoRa API
+
+## Include Library
+
+```arduino
+#include <LoRa.h>
+```
+
+## Setup
+
+### Begin
+
+Initialize the library with the specified frequency.
+
+```arduino
+LoRa.begin(frequency);
+```
+ * `frequency` - frequency in Hz (`433E6`, `866E6`, `915E6`)
+
+Returns `1` on success, `0` on failure.
+
+## Set pins
+
+Override the default `NSS` and `NRESET` pins used by the library. **Must** be called before `LoRa.begin()`.
+
+```arduino
+LoRa.setPins(ss, reset);
+```
+ * `ss` new slave select pin to use, defaults to `10`
+ * `reset` new reset pin to use, defaults to `9`
+
+### End
+
+Stop the library
+
+```arduino
+LoRa.end()
+```
+
+## Sending data
+
+### Begin packet
+
+Start the sequence of sending a packet.
+
+```arduino
+LoRa.beginPacket();
+```
+
+Returns `1` on success, `0` on failure.
+
+### Writing
+
+Write data to the packet. Each packet can contain up to 255 bytes.
+
+```arduino
+LoRa.write(byte);
+
+LoRa.write(buffer, length);
+```
+* `byte` single byte to write to packet
+
+or
+
+* `buffer` data to write to packet
+* `length` size of data to write
+
+Returns the number of bytes written.
+
+**Note:** Other Arduino `Print` API's can also be used to write data into the packet
+
+### End packet
+
+End the sequence of sending a packet.
+
+```arduino
+LoRa.endPacket()
+```
+
+Returns `1` on success, `0` on failure.
+
+## Receiving data
+
+### Parsing packet
+
+Check if a packet has been received.
+
+```arduino
+int packetSize = LoRa.parsePacket();
+```
+
+Returns the packet size or `0` if no packet was received.
+
+### Packet RSSI
+
+```arduino
+int rssi = LoRa.packetRSSI();
+```
+
+Returns the RSSI of the received packet.
+
+### Available
+
+```arduino
+int availableBytes = LoRa.available()
+```
+
+Returns number of bytes available for reading.
+
+### Peeking
+
+Peek at the next byte in the packet.
+
+```arduino
+byte b = LoRa.peek();
+```
+
+Returns the next byte in the packet or `-1` if no bytes available.
+
+### Reading
+
+Read the next byte from the packet.
+
+```arduino
+byte b = LoRa.read();
+```
+
+Returns the next byte in the packet or `-1` if no bytes available.
+
+**Note:** Other Arduino [`Stream` API's](https://www.arduino.cc/en/Reference/Stream) can also be used to read data from the packet
+

README.md

@@ -1,2 +1,54 @@
-# arduino-LoRa
-An Arduino library for sending and receiving data using LoRa radios.
+# Arduino LoRa
+
+An [Arduino](http://arduino.cc/) library for sending and receiving data using [LoRa](https://www.lora-alliance.org/) radios.
+
+## Compatible Hardware
+
+ * [Semtech SX1276/77/78/79](http://www.semtech.com/apps/product.php?pn=SX1276) based boards including:
+   * [Dragino Lora Shield](http://www.dragino.com/products/module/item/102-lora-shield.html)
+   * [HopeRF](http://www.hoperf.com/rf_transceiver/lora/) [RFM95W](http://www.hoperf.com/rf_transceiver/lora/RFM95W.html), [RFM96W](http://www.hoperf.com/rf_transceiver/lora/RFM96W.html), and [RFM98W](http://www.hoperf.com/rf_transceiver/lora/RFM98W.html)
+   * [Modtronix](http://modtronix.com/) [inAir4](http://modtronix.com/inair4.html), [inAir9](http://modtronix.com/inair9.html), and [inAir9B](http://modtronix.com/inair9b.html)
+   * [NiceRF LoRa1276](http://www.nicerf.com/product_view.aspx?id=99)
+
+### Semtech SX1276/77/78/79 wiring
+
+| Semtech SX1276/77/78/79 | Arduino |
+| :---------------------: | :------:|
+| VCC | 3.3V |
+| GND | GND |
+| SCK | SCK |
+| MISO | MISO |
+| MOSI | MOSI |
+| NSS | 10 |
+| NRESET | 9 |
+
+
+`NSS` and `NRESET` pins can be changed by using `LoRa.setPins(ss, reset)`.
+
+## Installation
+
+### Using the Arduino IDE Library Manager
+
+1. Choose `Sketch` -> `Include Library` -> `Manage Libraries...`
+2. Type `LoRa` into the search box.
+3. Click the row to select the library.
+4. Click the `Install` button to install the library.
+
+### Using Git
+
+```sh
+cd ~/Documents/Arduino/libraries/
+git clone https://github.com/sandeepmistry/arduino-LoRa LoRa
+```
+
+## API
+
+See [API.md](API.md).
+
+## Examples
+
+See [examples](examples) folder.
+
+## License
+
+This libary is [licensed](LICENSE) under the [MIT Licence](http://en.wikipedia.org/wiki/MIT_License).