From cc63f34e9e02a1925b15867eceb6a381867fda9c Mon Sep 17 00:00:00 2001
From: Maxime Augier <max@xolus.net>
Date: Sat, 20 Apr 2024 12:30:41 +0200
Subject: [PATCH] Round measures to their significant bits, remove debug
 statements

---
 src/main.rs | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index d89ece3..daad81b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -29,11 +29,13 @@ struct Data {
 
 impl Data {
     fn from_pkt(addr: Address, b: &[u8]) -> Data {
-        eprintln!("Packet {:?}", b);
+
+        let round = |v: f32| (v*100.0).round() / 100.0;
+
         Data {
             addr,
-            temperature: (u16::from_le_bytes([b[2], b[3]]) as f32) * 175.0 / 65535.0 - 45.0,
-            humidity: (u16::from_le_bytes([b[4], b[5]]) as f32) * 100.0 / 65535.0,
+            temperature: round((u16::from_le_bytes([b[2], b[3]]) as f32) * 175.0 / 65535.0 - 45.0),
+            humidity: round((u16::from_le_bytes([b[4], b[5]]) as f32) * 100.0 / 65535.0),
             co2: u16::from_le_bytes([b[6], b[7]]),
         }
     }
@@ -61,9 +63,9 @@ impl DataStore {
         for (_, (data, point)) in self.devices.iter() {
             let Data { addr, temperature, humidity, co2 } = data;
             let time = point.duration_since(UNIX_EPOCH).expect("Time went backwards").as_millis();
-            scrape += &format!("sensirion_temperature_celsius{{id=\"{addr}\"}} {temperature} {time}\n");            
-            scrape += &format!("sensirion_humidity_percent{{id=\"{addr}\"}} {humidity} {time}\n");            
-            scrape += &format!("sensirion_co2_ppm{{id=\"{addr}\"}} {co2} {time}\n");            
+            scrape += &format!("sensirion_temperature_celsius{{id=\"{addr}\"}} {temperature} {time}\n");
+            scrape += &format!("sensirion_humidity_percent{{id=\"{addr}\"}} {humidity} {time}\n");
+            scrape += &format!("sensirion_co2_ppm{{id=\"{addr}\"}} {co2} {time}\n");
         }
 
         scrape