I2C Digital Temperature & Humidity Sensor

Q: <p>Hi, is this sensor valid for measuring soil temperature and humidity? Thank you</p>

<p>We do not recommend that you use it in soil, the air in the soil may cause inaccurate readings.</p>

1. Example Code for Arduino-CHT8305

This article offers an in-depth look at using an Arduino to interface with the CHT8305 temperature and humidity sensor, including necessary hardware, software setup, wiring instructions, and sample code for effective environmental data collection.

2. Example Code for Arduino-CHT832X

This article offers a complete guide to interfacing the CHT832X temperature and humidity sensor with an Arduino UNO R3, including hardware setup, a wiring diagram, and sample Arduino code to read environmental data.

Reference

This article serves as a reference guide detailing communication protocols and providing links to datasheets for the CHT8305 and CHT832X sensors, essential for accurate data handling and supplementary information.

Parameter	Value
Operating Voltage	2.5V~5.5V
Standby Current	0.05uA (Typical), 0.3uA (Max)
Average Operating Current	1.5uA (Typical), 3.0uA (Max)
Temperature Measurement Range (℃)	-40℃~125℃
Temperature Measurement Accuracy (℃)	±0.5℃@0℃~50℃
Humidity Measurement Range (%RH)	0%RH~100%RH
Humidity Measurement Accuracy (%RH)	±3.0%RH@20%RH~80％RH
Communication	I2C
Connector	DuPont 2.54
Reserved DuPont Wire Length	5cm
Wire Length	1.5m
Housing	304 stainless steel
Wire Sequence	red VCC; black GND; white/Green SCL; yellow SDA

Color	Label	Description
Red	VCC	+
Black	GND	-
White/Green	SCL	Clock
Yellow	SDA	Data

I2C Digital Temperature & Humidity Sensor

Specification

Pinout