mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
60 lines
2.1 KiB
Markdown
60 lines
2.1 KiB
Markdown
|
|
||
|
[![Arduino CI](https://github.com/RobTillaart/DHT_Simulator/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
|
||
|
[![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/DHT_Simulator/blob/master/LICENSE)
|
||
|
[![GitHub release](https://img.shields.io/github/release/RobTillaart/DHT_Simulator.svg?maxAge=3600)](https://github.com/RobTillaart/DHT_Simulator/releases)
|
||
|
|
||
|
# DHT_Simulator
|
||
|
|
||
|
Arduino sketch to simulate a DHT22 temperature and humidity sensor.
|
||
|
|
||
|
## Description
|
||
|
|
||
|
The DHT22 is an often used sensor and many libraries are written for it
|
||
|
including my own https://github.com/RobTillaart/DHTNew library.
|
||
|
To better understand the protocol and to be able to debug my library
|
||
|
I wrote a simulator for the DHT sensors in 2014.
|
||
|
|
||
|
The simulator can be used to test applications to that use a DHT sensor,
|
||
|
e.g. to get high alarm temp or whatever.
|
||
|
|
||
|
Currently the code uses two analog ports to get a value for temperature
|
||
|
and humidity. Just connect two potmeters to play and simulate increase and
|
||
|
decrease of the temperature and humidity.
|
||
|
|
||
|
## 0.2.1
|
||
|
|
||
|
- added pin to trigger CRC errors
|
||
|
- added temp and hum pin for input for CI
|
||
|
- added pins for CRC error, pulselength error and timeout error
|
||
|
(to be tested in detail)
|
||
|
|
||
|
|
||
|
## 0.2.0 version
|
||
|
|
||
|
- added flag for random generation of data
|
||
|
- added flag for debug
|
||
|
- explicit support ESP32 & ESP8266
|
||
|
- added counter # samples generated per second ==> so one sees it still runs
|
||
|
- added error and debug messages // some commented
|
||
|
|
||
|
The simulator is not tested extensively so please report bugs.
|
||
|
|
||
|
## Future
|
||
|
|
||
|
1) use the simulator-core as a bridge to other sensors.
|
||
|
Idea is to use the code of the simulator in combination with a
|
||
|
Senserion or two separate sensors (DS18B20 + ? ) to provide an
|
||
|
accurate temperature and humidity. These could then be readable
|
||
|
with any DHT library with the performance of a DHT (~ 5ms).
|
||
|
(when time permits)
|
||
|
|
||
|
2) implement a recorder mode, to be able to replay a certain
|
||
|
behavior time after time.
|
||
|
|
||
|
## Operation
|
||
|
|
||
|
- adjust the pins in the head of the program to meet your setup
|
||
|
- compile, connect, run
|
||
|
|
||
|
And have fun.
|