Assembling and Replacing Leaves

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Guide Leafony setup in English, one step at a time. First check the goal (factory demo or programming), kit, photo or installed leaf models, assembly and all power sources. Then ask only for needed reprogramming history, OS and tools. Clarify which LED/display changed or which cable/leaf was replaced; an unseen reset button is not necessarily absent. Give one action with its expected result and wait. Basic Kit 2 ships with AVR: use the Basic Kit guide for its unchanged demo. Before flashing, explain overwriting and confirm intent. Power off all sources before changing the stack; check USB-leaf reset support and port users. Verify specifications with current official URLs, separating observations from hypotheses. Follow redirects; if unreadable, ask for text or errors rather than guessing.

Page: Assembling and Replacing Leaves

URL: https://docs.leafony.com/en/getting-started/assembly/

Getting started: https://docs.leafony.com/en/getting-started/

Basic Kit demo: https://docs.leafony.com/en/getting-started/basic/

Environment setup: https://docs.leafony.com/en/environment/

Description / headings (excerpt): Check power before stacking leaves, attach ACR connectors, use spacers, secure the stack with screws and a Nut Plate, and test your new configuration. / What You Need / 1. Disconnect All Power / 2. Check Connectors and Orientation / 3. Fol…

Use these common steps when adding a leaf or replacing an MCU. Follow the leaf selection and stacking order in the kit or example you are using. Before changing the functional configuration, read Combining Leaves and Choosing a Power Supply to check power and pin requirements.

What You Need

Part or document	What to check
Leaves to use	Model, revision, front/back orientation, and whether they match the example
AZ61 Connector	ACR (anisotropic conductive rubber) connectors between leaves
AZ62 Connector Cover	Protects exposed connectors from dirt
Screws and AZ63 Nut Plate	Fasteners of the length and quantity specified for the configuration
AX04 Spacer	Used where the example specifies one or where adjacent components interfere
Kit or example assembly diagram	Stacking order and battery, USB, and external device connections

If you do not know a leaf’s model, see How to Identify Your Leaves. Screw length and spacer requirements depend on the stack, so another kit’s fastening parts may not be suitable.

1. Disconnect All Power

Turn the power switch OFF and disconnect USB cables, batteries, and power from external circuits. Even with a power leaf’s switch OFF, check that no other source, such as USB, remains connected before removing the screws.

Take a photo of the existing stacking order so that you can restore it later.

2. Check Connectors and Orientation

An ACR connector electrically connects the contacts when compressed between leaves. If a connector is detached, check the white line and attachment direction shown below.

Align the ACR connector with the white line when attaching it to a leaf

For removal, see the AZ61 attachment and removal diagrams. If a connector is dirty, check it using the power troubleshooting steps before stacking the leaves.

3. Follow the Assembly Diagram

Align the bus contacts and screw holes, and follow the front/back orientation and order in the kit or example diagram. If components touch another leaf or a board sits at an angle, do not force it into place with the screws. Review the configuration first.

Use an AX04 Spacer to increase clearance between components. Check the leaf or example documentation for the required position.

For a specific example, see Replacing AVR with STM32 in Basic Kit 2. The screws and stacking order in that example are for Basic Kit 2.

4. Secure the Stack Before Applying Power

Use the specified screws and Nut Plate. Tighten the screws alternately, checking for looseness or uneven alignment. Use AZ63 Nut Plate: ordinary hex nuts may touch the board contacts and cause a short circuit.

Before applying power, check the following:

Bus contacts and screw holes align, and components do not touch each other.
Connectors are in their correct positions and the screws are secure.
Battery type and polarity match the power leaf’s input requirements.
The program switch is in the correct position for running or uploading the program.
If using USB and a battery together, the power conditions for each leaf have been checked.

After completing these checks, connect the power source specified by the kit or example.

5. Test a Simple Function First

After replacement, use the development environment and program for the selected MCU. Start with a basic example, such as printing sensor readings to the serial monitor, to check connections and software in stages.

Symptom	What to check next
No power	Power, connector, and screw checks
Upload fails	Upload troubleshooting
Communication stops after adding a leaf	Configuration checks and the I2C Address Map
Unsure which program to use	Development Environment and Examples