updated README

README.md

@@ -1,12 +1,14 @@
 # LoRaTransmit
 
-LoRa packet transmitter for RNode hardware 
+Simple commandline raw LoRa packet transmitter for [RNode](https://unsigned.io/articles/2023_01_16_The_New_RNode_Ecosystem_Is_Here.html) hardware.
+
+It's meant to be complementary to the packet sniffer [LoRaMon](https://github.com/markqvist/LoRaMon) and uses the latest [Python Module](https://github.com/markqvist/RNode_Firmware/tree/master/Python%20Module) that comes with the [RNode Firmware](https://github.com/markqvist/RNode_Firmware).
 
 ## Usage
 
 provide payload as command line argument or via pipe
 
-```
+```sh
 usage: loratransmit [-h] [--freq Hz] [--bw Hz] [--txp dBm] [--sf factor]
                        [--cr rate]
                        [port] [payload]
@@ -24,4 +26,18 @@ options:
   --txp dBm    TX power in dBm
   --sf factor  Spreading factor
   --cr rate    Coding rate
+```
+
+## Example
+
+Payload passed as argument
+
+```sh
+$ /bin/python3 loratransmit.py --freq 917500000 /dev/ttyACM0 "Hello World"
+```
+
+Payload passed through pipe
+
+```sh
+$ echo "Hello World" | /bin/python3 loratransmit.py --freq 917500000 /dev/ttyACM0
 ```