Basic Kit / Basic Kit 2: Your First AVR Demo

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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: Basic Kit / Basic Kit 2: Your First AVR Demo

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

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): Use the preinstalled AVR demo to view temperature, humidity, illuminance and acceleration over BLE. These first steps are shared by Basic Kit and Basic Kit 2 and need no development tools. / What to prepare / Setup / Usage / For Android, m…

Table of contents

If your Basic Kit 2 has just arrived, start here too. Its preinstalled AVR demo is shared with Basic Kit. Keep the kit assembled with its AVR MCU; you do not need to swap the processor.

Use the program preinstalled on the AVR MCU to view temperature, humidity, illuminance and acceleration readings over BLE on a phone or computer. You do not need to upload a program or install development tools. The separate STM32 MCU included in Basic Kit 2 is not used for this first check.

What to prepare

Basic Kit or Basic Kit 2 with its AVR MCU installed
A CR2032 coin cell battery
A phone or computer with Bluetooth LE and a supported browser

Device	Browser to use
Android, macOS or Windows	Google Chrome with Web Bluetooth support
iPhone or iPad	Bluefy
Linux	Chrome requires additional setup; see the instructions below

The Web Bluetooth implementation status describes browser support. OS and browser support alone do not guarantee that this demo works on every device. Start by checking the on-screen readings.

Setup

Insert the CR2032 coin cell in the orientation shown, then turn the power switch ON.

Battery orientation and power switch

Usage

For Android, macOS or Windows

Enable Bluetooth on your device and open Google Chrome.
Open the Leafony Web Bluetooth app.
Press Leafonyに接続する (Connect to Leafony). Select Leafony_AC02 in your device's pairing dialog and pair. Allow Bluetooth access if prompted.
Check that temperature, humidity and other readings appear and the Leafony LED blinks.

Sensor readings in the previous web app interface

This is an example of the previous interface. In the current app, use Leafonyに接続する (Connect to Leafony).

For iPhone or iPad

Install and open Bluefy.
Enable Bluetooth and allow Bluefy to access it if prompted.
Open https://docs.leafony.com/WebBluetooth_for_Leafony_app/ in Bluefy.
Press Leafonyに接続する (Connect to Leafony), select Leafony_AC02 in your device's pairing dialog, and pair. Check the readings on screen and the blinking LED.

On iPhone and iPad, first check the on-screen readings. CSV export in the current Bluefy version has not been rechecked for this demo.

On Linux

The official compatibility table lists Linux as partially implemented and unsupported. Check the Linux notes and required settings first, then follow the Chrome connection steps above. If setup is difficult, use another device from the table for the initial demo.

Check that it worked

When sensor readings appear in the web app and the Leafony LED blinks, your first check is complete. CSV export and changing the program are not needed for this check.

Open LEDの調整・データの保存 (LED settings and data export) to change the LED blink speed or export readings. Adjust the LED while connected, and use CSVを保存する (Save CSV) to export received readings. When finished, select 接続を切る (Disconnect).

Troubleshooting

If the device does not appear, see BLE connection checks. If you uploaded a different program, follow Restore the demo; restarting the MCU does not restore it.

Next steps

Upload your first program with AVR (AP01): Set up Arduino IDE and check the blinking LED. The first Blink example needs no additional libraries.
Understand the AVR demo: Web Bluetooth IoT example and source code
When you need more memory or processing capacity (optional): Swap in the STM32 (AP03) included in Basic Kit 2 and try its preinstalled demo. You can also continue developing with AVR.

For a different MCU or development tool, use the development environment list. Uploading a program replaces the current demo, so check how to restore it before continuing.