From 3faf6ab9eb1b243aa4b46f22b7af3d60242b6910 Mon Sep 17 00:00:00 2001
From: Laurent Ellerbach <laurelle@microsoft.com>
Date: Fri, 20 Nov 2020 19:30:34 +0300
Subject: [PATCH] Fixing DHT InputPullUp to Input only (#1293)

* Fixing DHT InputPullUp

* Adjusting pinmode
---
 src/devices/Dhtxx/DhtBase.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/devices/Dhtxx/DhtBase.cs b/src/devices/Dhtxx/DhtBase.cs
index 7d7357bb..ba8bdb79 100644
--- a/src/devices/Dhtxx/DhtBase.cs
+++ b/src/devices/Dhtxx/DhtBase.cs
@@ -145,6 +145,7 @@ namespace Iot.Device.DHTxx
 
             byte readVal = 0;
             uint count;
+            var pinMode = _controller.IsPinModeSupported(_pin, PinMode.InputPullUp) ? PinMode.InputPullUp : PinMode.Input;
 
             // keep data line HIGH
             _controller.SetPinMode(_pin, PinMode.Output);
@@ -162,7 +163,7 @@ namespace Iot.Device.DHTxx
             // wait 20 - 40 microseconds
             DelayHelper.DelayMicroseconds(30, true);
 
-            _controller.SetPinMode(_pin, PinMode.InputPullUp);
+            _controller.SetPinMode(_pin, pinMode);
 
             // DHT corresponding signal - LOW - about 80 microseconds
             count = _loopCount;
-- 
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