Leaf reference

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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: Leaf reference

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

Description / headings (excerpt): Browse by kit / Browse by function

Find specifications and connections by kit or function. To choose products to buy, see the product catalog. Check the shop for prices, availability and planned releases.

This reference also includes leaves supplied in kits and documentation for discontinued leaves.

Browse by kit

Choose your kit to see its leaves in photos. You can also browse by function below.

Basic Kit 27 leaf types

7 types of leaves. Select a photo or name for specifications and pin assignments.

AP01 AVR MCU

An AVR microcontroller that runs your programs.

Qty: 1

AP03 STM32 MCU

Runs programs to read sensors and control other leaves. It can replace the AVR MCU.

Qty: 1

AI01 4-Sensors

Measures temperature, humidity, light, and acceleration.

Qty: 1

AC02 BLE Sugar

Sends and receives data over Bluetooth LE.

Qty: 1

AV01 CR2032

Supplies power from a CR2032 coin cell battery.

Qty: 1

AZ01 USB

Connects to a computer for programming, serial communication, and USB power.

Qty: 1

AX02 29pin

Connects leaf signals to external circuits.

Qty: 1

Accessories and other included items

AZ62 Connector Cover

Protects the connector from dust and debris.

Qty: 1

View in shop Set of 10 each

AZ66 Basic Kit Case

Holds Basic Kit and attaches it to a surface that magnets stick to, using a magnet on its base.

Qty: 1

Product sheet× 1
Product label× 1
CR2032 coin cell battery× 1
M2×18 mm screw× 2
Screwdriver× 1

Extension Kit9 leaf types / Sales ended

9 types of leaves. Select a photo or name for specifications and pin assignments.

AI02 SP&PIR

Plays sound through a speaker and detects approaching people with a PIR sensor.

Qty: 1 Discontinued

AI03 MIC&VR&LED

Reads ambient sound and the knob position, and lights LEDs.

Qty: 1 Discontinued

AI04 LCD

Displays text and accepts input from switches.

Qty: 1 Discontinued

AV03 AA BAT

Supplies power from AA batteries.

Qty: 1 Discontinued

AX01 Shield

Connects to Arduino Shields and SWD or ICSP connectors.

Qty: 1

View in shop

AX03 Leaf x2

Connects leaves side by side.

Qty: 1 Discontinued

AX04 Spacer

Adds space between stacked leaves.

Qty: 1

View in shop

AX05 I Meas.

Helps measure the current flowing through leaves.

Qty: 1 Discontinued

AX06 Grove&5V

Connects Grove modules that operate at 5 V.

Qty: 1 Discontinued

Accessories and other included items

Caution note× 1

ESP32 Wi-Fi Kit 25 leaf types / Sales ended

5 types of leaves. Select a photo or name for specifications and pin assignments.

AP02 ESP32 MCU

Runs programs and exchanges data over Wi-Fi or Bluetooth LE.

Qty: 1 Discontinued

AV04 2V～4.5V

Connects a battery holder to supply power to leaves.

Qty: 1 Discontinued

AZ02 RTC&microSD

Keeps time and stores data on a microSD card.

Qty: 1 Discontinued

AX07 Back to back

Connects leaves back to back.

Qty: 1 Discontinued

AX08 29pin header

Connects leaf signals to a pin header.

Qty: 1 Discontinued

Accessories and other included items

AZ62 Connector Cover

Protects the connector from dust and debris.

Qty: 2

View in shop Set of 10 each

AZ63 Nut Plate

Secures leaves with screws.

Qty: 2

View in shop Set of 10 each

AZ67 AAA battery holder

Connects AAA batteries to the AV04 power leaf through an SH connector.

Qty: 1 Discontinued

AZ68 18650 battery holder

Connects an 18650 battery to the AV04 power leaf through an SH connector.

Qty: 1 Discontinued

Product sheet× 1
Product label× 1
M2×12 mm screw× 2
Magnet, 10 mm diameter × 2 mm thick× 1

Basic Kit6 leaf types / Sales ended

6 types of leaves. Select a photo or name for specifications and pin assignments.

AP01 AVR MCU

An AVR microcontroller that runs your programs.

Qty: 1

AI01 4-Sensors

Measures temperature, humidity, light, and acceleration.

Qty: 1

AC02 BLE Sugar

Sends and receives data over Bluetooth LE.

Qty: 1

AV01 CR2032

Supplies power from a CR2032 coin cell battery.

Qty: 1

AZ01 USB

Connects to a computer for programming, serial communication, and USB power.

Qty: 1

AX02 29pin

Connects leaf signals to external circuits.

Qty: 1

Accessories and other included items

AZ62 Connector Cover

Protects the connector from dust and debris.

Qty: 1

View in shop Set of 10 each

AZ66 Basic Kit Case

Holds Basic Kit and attaches it to a surface that magnets stick to, using a magnet on its base.

Qty: 1

CR2032 coin cell battery× 1
M2×18 mm screw× 2
Screwdriver× 1

ESP32 Wi-Fi Kit5 leaf types / Sales ended

5 types of leaves. Select a photo or name for specifications and pin assignments.

AP02 ESP32 MCU

Runs programs and exchanges data over Wi-Fi or Bluetooth LE.

Qty: 1 Discontinued

AV04 2V～4.5V

Connects a battery holder to supply power to leaves.

Qty: 1 Discontinued

AZ02 RTC&microSD

Keeps time and stores data on a microSD card.

Qty: 1 Discontinued

AX07 Back to back

Connects leaves back to back.

Qty: 1 Discontinued

AX08 29pin header

Connects leaf signals to a pin header.

Qty: 1 Discontinued

Accessories and other included items

AZ62 Connector Cover

Protects the connector from dust and debris.

Qty: 2

View in shop Set of 10 each

AZ63 Nut Plate

Secures leaves with screws.

Qty: 2

View in shop Set of 10 each

AAA battery holder× 1
Caution note× 1
M2×12 mm screw× 2
Magnet, 10 mm diameter × 2 mm thick× 1

Browse by function

Find a leaf by what you want to do or the model number printed on its board. Each reference page explains its capabilities, connections and specifications, with links to design documents. See the glossary for abbreviations and connector terminology.

Category	Model prefix	What you can do
Processor	AP	Run programs to read sensors and control other leaves
Communication	AC	Send and receive data wirelessly
Sensors and I/O	AI	Measure the environment or motion, display text, and play sound
Power	AV	Supply power to leaves from batteries
Extension	AX	Connect external circuits or adjust how leaves are assembled
Other leaves and accessories	AZ	Connect a computer, keep time, store data, or secure and protect leaves

AP03B STM32 (Japanese) reads sensors and controls other leaves. It is a redesigned version of AP03 with an STM32L452REI6 microcontroller.

AI05 Env Sensors (Japanese) measures temperature, humidity, pressure, and 3-axis acceleration. The standard configuration uses a BME280 and LIS2DW12, read over I2C by an MCU leaf.