AI01 4-Sensors: Temperature, Humidity, Light and Acceleration

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Read this official Leafony page and explain its key points in English. For hardware help, first ask for a photo or the installed leaf models, assembly and power sources, then the goal and tools. Clarify which LED or display changed and whether a cable or leaf was replaced. Do not equate an unseen reset button with an absent one, or I2C acknowledgement with a working display. Verify specifications against sources; distinguish observations from hypotheses. Follow a redirect to its destination; if unreadable, ask for the relevant text instead of guessing.

Page: AI01 4-Sensors: Temperature, Humidity, Light and Acceleration

URL: https://docs.leafony.com/en/leaf/io/ai01/

Description / headings (excerpt): Explore Leafony AI01 sensor ranges, I2C addresses and pin assignments for HTS221TR, OPT3001 and LIS2DHTR, with AVR, ESP32 and STM32 code examples. / Features / Specification / Dimension / Temperature/Humidity Sensor

Table of contents

Features

Measure temperature, humidity, ambient light (illuminance), and acceleration. Combined with an MCU (microcontroller) leaf, this leaf lets you read changes in the surrounding environment and the leaf’s movement.

It has a temperature/humidity sensor, an illuminance sensor, and an accelerometer. The MCU leaf reads their measurements over I2C.

Specification

Dimension

Item	Description
Dimension	W23×D20.5×H4.7mm

Temperature/Humidity Sensor

Item	Description
Part number	HTS221TR
Relative Temperature range	-40～120℃
Temperature accuracy	±0.5°C (15 to +40°C)
Relative humidity range	0 to 100%
Humidity accuracy	3.5% rH (20 to +80% rH)
Interfaces	I2C(Address: 0x5F)

Illuminance Sensor

Item	Description
Part number	OPT3001
Measurement range	0.01 lux to 83 k lux
IR Rejects	> 99% (typ)
Interfaces	I2C(Address: 0x44 or 0x45)

Acceleration Sensor

Item	Description
Part number	LIS2DHTR
Measurement range	±2g/±4g/±8g/±16g (selectable)
Function	6D/4D orientation detection
Freefall detection
Motion detection
Interfaces	I2C(Address: 0x19)

Block diagram

Pinassign

See the pin assignment data for details.

Sample App

AVR MCU Examples

ESP32 MCU Examples

STM32 MCU Examples

Library

Libraries are available for this leaf. Follow the library installation guide to install the required libraries.

Document

Revision history

First edition, August 2019