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rob tillaart cdf27c3d05 1.1.1 DHTStable + github actions
2023-02-19 11:02:27 +01:00
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.github 1.1.1 DHTStable + github actions 2023-02-19 11:02:27 +01:00
examples sync repos (mostly keeping build happy) 2022-10-01 13:17:26 +02:00
test 1.1.1 DHTstable 2021-12-16 22:03:02 +01:00
.arduino-ci.yml 1.1.0 DHTStable 2021-11-06 20:30:17 +01:00
DHTStable.cpp 1.1.1 DHTstable 2021-12-16 22:03:02 +01:00
DHTStable.h 1.1.1 DHTstable 2021-12-16 22:03:02 +01:00
keywords.txt 1.1.1 DHTstable 2021-12-16 22:03:02 +01:00
library.json 1.1.1 DHTstable 2021-12-16 22:03:02 +01:00
library.properties 1.1.1 DHTstable 2021-12-16 22:03:02 +01:00
LICENSE 1.1.1 DHTStable + github actions 2023-02-19 11:02:27 +01:00
readme.md 1.1.1 DHTStable + github actions 2023-02-19 11:02:27 +01:00

readme.md

Arduino CI Arduino-lint JSON check License: MIT GitHub release

DHTStable

Arduino Library for the DHT11 and DHT22 temperature and humidity sensor.

Description

The DHTStable library is a "frozen" version of the DHTlib. This version is stable for both ARM and AVR.

0.2.5 is a migration to its own repository. 0.2.6 fixed URL to new repository 0.2.7 getTemperature() and getHumidity() added added Arduino-CI + unit test. 0.2.8 fix negative temperature 0.2.9 fix URL in JSON file

breaking name

1.0.0 renamed the dht.h file to DHTStable.h to fix the incompatible flag See issue https://github.com/RobTillaart/DHTstable/issues/8 Also made temperature and humidity private

The latest developments for the DHT sensors are done in https://github.com/RobTillaart/DHTNEW which is also tested on an ESP32. There are some interface differences, these are relative small but can be time critical.

It is advised to upgrade to the DHTNEW library if one needs the new functionality.

Operational

See examples.

Voltage AM2301

In a test an AM2301 had problems giving no humidity (99.9% overflow) when this DHTStable library was used with an ESP8266. (Reported by mail, no GH issue) After days of testing and thinking and more testing the cause was found. The AM2301 was powered by a 5V3 power supply which was apparently too high while having the data handshakes at 3V3. When the VCC voltage was lowered to 5V1 it appeared to work as it should. (Kudos to Viktor for finding the cause)

Future

  • no active development
    • follow bug fixes from DHTnew
    • on request.
  • move some const int to .cpp file
  • improve unit test
    • add constants test
  • add release_notes