From 8969877502503a536f4f2df15ae0ee9d1c33383b Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Sun, 23 Feb 2020 21:26:58 +0100
Subject: [PATCH] Refactor DHT driver

Refactor DHT driver (#7717)
---
 tasmota/xsns_06_dht_v5.ino | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tasmota/xsns_06_dht_v5.ino b/tasmota/xsns_06_dht_v5.ino
index f08286b43..9c7003970 100644
--- a/tasmota/xsns_06_dht_v5.ino
+++ b/tasmota/xsns_06_dht_v5.ino
@@ -100,6 +100,7 @@ bool DhtRead(uint32_t sensor)
       break;
   }
 
+/*
   bool error = false;
   noInterrupts();
   if (DhtWaitState(sensor, 0) && DhtWaitState(sensor, 1) && DhtWaitState(sensor, 0)) {
@@ -127,6 +128,22 @@ bool DhtRead(uint32_t sensor)
   }
   interrupts();
   if (error) { return false; }
+*/
+
+  uint32_t i = 0;
+  noInterrupts();
+  if (DhtWaitState(sensor, 0) && DhtWaitState(sensor, 1) && DhtWaitState(sensor, 0)) {
+    for (i = 0; i < 40; i++) {
+      if (!DhtWaitState(sensor, 1)) { break; }
+      delayMicroseconds(35);                          // Was 30
+      if (digitalRead(Dht[sensor].pin)) {
+        dht_data[i / 8] |= (1 << (7 - i % 8));
+      }
+      if (!DhtWaitState(sensor, 0)) { break; }
+    }
+  }
+  interrupts();
+  if (i < 40) { return false; }
 
   uint8_t checksum = (dht_data[0] + dht_data[1] + dht_data[2] + dht_data[3]) & 0xFF;
   if (dht_data[4] != checksum) {