Show current sensor value

sensor-plot/src/main.rs

@@ -118,22 +118,31 @@ fn main() {
         }
         old_b = b;
 
-        let unit: &[u8] = match sensor {
-            Sensor::Temperature => b"T\0",
-            Sensor::Humidity => b"RH\0",
-            Sensor::Pressure => b"P\0",
-            Sensor::GasResistance => b"R\0",
-        };
+        let mut str_buffer = [0u8; 32];
 
         environment_sensors.read().map(|v| {
             plot_buffer_t.add_sample((v.temperature * 1000.0) as i32);
             plot_buffer_rh.add_sample((v.humidity * 1000.0) as i32);
             plot_buffer_p.add_sample((v.pressure * 1000.0) as i32);
             plot_buffer_r.add_sample((v.gas_resistance * 1000.0) as i32);
+            match sensor {
+                Sensor::Temperature => {
+                    write!(FmtBuffer::new(&mut str_buffer), "T: {}\0", v.temperature).unwrap();
+                }
+                Sensor::Humidity => {
+                    write!(FmtBuffer::new(&mut str_buffer), "RH: {}\0", v.humidity).unwrap();
+                }
+                Sensor::Pressure => {
+                    write!(FmtBuffer::new(&mut str_buffer), "P: {}\0", v.pressure).unwrap();
+                }
+                Sensor::GasResistance => {
+                    write!(FmtBuffer::new(&mut str_buffer), "R: {}\0", v.gas_resistance).unwrap();
+                }
+            };
         });
 
         display.clear(Color::black());
-        display.print(0, 0, unit, Color::white(), Color::black());
+        display.print(0, 0, &str_buffer, Color::white(), Color::black());
         match sensor {
             Sensor::Temperature => plot_buffer_t.plot(&display),
             Sensor::Humidity => plot_buffer_rh.plot(&display),