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@@ -1,3 +1,26 @@
 # embedded-bt-rssi-monitor
 
-A bluetooth RSSI monitor to run on a tiny system such as a microcontroller or single board computer.  
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+A bluetooth RSSI monitor to run on a tiny system such as a microcontroller or single board computer.  
+
+
+### Usage
+
+Configure env.sh with the devices you want to monitor.  The environment variables must have an _%d suffix, in series, starting from 0.  
+
+```bash
+#/bin/bash
+
+export btmacaddress_0="69:42:69:FF:04:20" # your phone
+export btmacaddress_1="0F:F0:0F:F6:44:55" # your smart watch
+export btmacaddress_2="0F:44:24:F5:69:69" # your tablet
+
+```
+
+Then source the env.sh file to load the variables, build the program with go and then run it.
+
+```bash
+
+source env.sh
+go build . && ./embedded-bt-rssi-monitor
+
+```
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