From 6d755943e050d2129042e820994c4d0f8c7f2ba0 Mon Sep 17 00:00:00 2001
From: David Dix <david@dixieworld.co.uk>
Date: Fri, 29 Nov 2019 08:38:51 +0000
Subject: [PATCH] Fix si7021 temperature/humidity sensor reading

Raw reading modified according to the Silicon Labs sample code for the Si7021 sensor
---
 extras/dht/dht.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/extras/dht/dht.c b/extras/dht/dht.c
index 34e7a07..0a2affa 100644
--- a/extras/dht/dht.c
+++ b/extras/dht/dht.c
@@ -139,6 +139,9 @@ static inline int16_t dht_convert_data(dht_sensor_type_t sensor_type, uint8_t ms
             data = 0 - data;       // convert it to negative
         }
     }
+    else if (sensor_type == DHT_TYPE_SI7021) {
+        data = msb * 256 + (lsb & ~0x3);
+    }
     else {
         data = msb * 10;
     }