SparkFunRHT03 (community library)
Summary
| Name | Value |
|---|---|
| Name | SparkFunRHT03 |
| Version | 1.0.4 |
| Installs | 33624 |
| License | MIT |
| Author | Jim Lindblom jim@sparkfun.com |
| URL | https://github.com/sparkfun/sparkfun_rht03_particle_library |
| Repository | https://github.com/sparkfun/sparkfun_rht03_particle_library.git |
| Download | .tar.gz |
| All Versions | 1.0.4, 1.0.3, 1.0.2 |
A simple library for RHT03 temperature and humidity sensor, which communicates over a 1-wire digital interface.
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Library Read Me
This content is provided by the library maintainer and has not been validated or approved.
SparkFun RHT03 Particle Library
A firmware library for the SparkFun's RHT03 humidity and temperaure sensor.
About
The RHT03 is a one-wire digital sensor that measures relative humidity from 0-100% and temperature from -40-80 deg C.
Repository Contents
- /firmware - Source files for the library (.cpp, .h).
- /firmware/examples - Example sketches for the library (.cpp). Run these from the Particle IDE.
- spark.json - General library properties for the Particle library manager.
Example Usage
Create an RHT03 Object & Initialize
To begin, create an RHT03 class object. This'll often go in the global section of the code:
/////////////////////////// // RHT03 Object Creation // /////////////////////////// RHT03 rht; // This creates a RTH03 object, which we'll use to interact with the sensor
To initialize the sensor, call the begin([pin]) function, where [pin] is the Photon pin connected to the RHT03 data pin.
void setup() { ... rht.begin(D3); // Initialize an RHT03 sensor, with the data pin connected to D3. ... }
Update and Read Humidity and Temp Values
Temperature and humidity values are updated in one fell single-wire swoop. To get new values from the sensor, call update(). update() returns either 1 on success, or a negative value if it fails.
int updateRet = rht.update();
If the update succeeds, use the humidity(), tempC(), and tempF() functions to get relative humidity, celsius, and farenheit temperatures. All variables are returned as float's.
if (updateRet == 1) { float rh = rht.humidity(); float tf = rht.tempF(); float tc = rht.tempC(); }
Recommended Components
License Information
This product is open source!
Please review the LICENSE.md file for license information.
If you have any questions or concerns on licensing, please contact techsupport@sparkfun.com.
Distributed as-is; no warranty is given.
- Your friends at SparkFun.
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