From 97d11f3fd5fc2b3aa1157a9afb8b9f2920a89682 Mon Sep 17 00:00:00 2001
From: edwin <edwinman7@yahoo.com>
Date: Tue, 6 Dec 2022 15:21:41 +0800
Subject: [PATCH] define an empty constructor and overload DHT::begin

---
 DHT.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/DHT.cpp b/DHT.cpp
index f8fa3d4..730d6ee 100644
--- a/DHT.cpp
+++ b/DHT.cpp
@@ -41,8 +41,8 @@ DHT::DHT() {
   // initialize members _pin and _type in the class definition.
   // They can be modified via DHT::begin(uint8_t pin, uint8_t type, uint8_t usec).
 #ifdef __AVR
-  _bit = digitalPinToBitMask(pin);
-  _port = digitalPinToPort(pin);
+  _bit = digitalPinToBitMask(_pin);
+  _port = digitalPinToPort(_pin);
 #endif
   _maxcycles = microsecondsToClockCycles(1000); // 1 millisecond timeout for
                                                 // reading pulses from DHT sensor.