mirror/DHT-sensor-library
1
0
Fork 0
mirror of https://github.com/adafruit/DHT-sensor-library.git synced 2023-10-23 22:20:38 +03:00
Code Issues Projects Releases Wiki Activity

Merge pull request #115 from owenduffy/master

Browse Source 
Fix timing and pin mode change to comply with datasheet.
This commit is contained in:
Paint Your Dragon 2019-01-11 16:34:29 -08:00 committed by GitHub
commit b3b0b08d6d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
DHT.cpp
View File

@ -162,11 +162,10 @@ bool DHT::read(bool force) {
// End the start signal by setting data line high for 40 microseconds.
digitalWrite(_pin, HIGH);
delayMicroseconds(40);
pinMode(_pin, INPUT_PULLUP);
// Now start reading the data line to get the value from the DHT sensor.
pinMode(_pin, INPUT_PULLUP);
delayMicroseconds(10); // Delay a bit to let sensor pull data line low.
delayMicroseconds(60); // Delay a bit to let sensor pull data line low.
// First expect a low signal for ~80 microseconds followed by a high signal
// for ~80 microseconds again.