initial commit

.gitignore

@@ -16,3 +16,8 @@ target/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+
+# Added by cargo
+
+/target

Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "ve-instant-readout"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+dbus = "0.9.11"
+hex = "0.4.3"
+tokio = "1.52.3"
+tokio-stream = "0.1.18"
+victron_ble = "1.0.0"

src/main.rs

@@ -0,0 +1,53 @@
+use std::{env, println};
+use tokio_stream::StreamExt;
+
+#[tokio::main]
+async fn main() {
+    let args: Vec<String> = env::args().collect();
+    println!("{args:?}");
+
+    if args.len() != 3 {
+        println!("Usage: cargo run <victron device name> <victron device encryption key>");
+        return;
+    }
+
+    let device_name = args.get(1).unwrap();
+    let device_encryption_key = hex::decode(args.get(2).unwrap())
+        .expect("Invalid device encryption key, it should be hex encoded.");
+
+    let mut device_state_stream =
+        victron_ble::open_stream(device_name.into(), device_encryption_key).unwrap();
+
+    while let Some(result) = device_state_stream.next().await {
+        match result {
+            Ok(_device_state) => analyse_result(&_device_state),
+            Err(e) => println!("{e}"),
+        }
+    }
+}
+
+fn analyse_result( state: &victron_ble::DeviceState ) {
+    println!("Result:");
+    println!("{state:?}");
+    match state {
+        victron_ble::DeviceState::BatteryMonitor(victron_ble::BatteryMonitorState {
+            battery_voltage_v,
+            aux_input,
+            ..
+        }) => {
+            match battery_voltage_v {
+                Some(v) => println!("Voltage: {}V", v),
+                None => {},
+            }
+
+            //println!("{:?}", aux_input);
+            let temp_k = format!("{:?}", aux_input);
+            println!("{}", temp_k);
+            if temp_k.starts_with("TemperatureK") {
+                let temp = &temp_k[13..temp_k.len()-1];
+                println!("Temperature: {}K", temp);
+            }
+       }
+        _ => {},
+    }
+}